china monocrystalline diamond stone apply to gem industry

Just fill in the form below, click submit, you will get the price list, and we will contact you within one working day. Please also feel free to contact us via email or phone. (* is required).

  • Exploring the Chinese Gem and Jewelry Industry

    THE CHINESE GEM AND JEWELRY INDUSTRY. Historical Perspective. Jewelry has a well-established history in China, where gold and silver have been used for decorative purposes for at least 3,000 years. Based on archaeological evidence, the Chinese began using jade even earlier, during the New Stone …

    Get Price
  • Monocrystalline diamond Manufacturers & Suppliers,

    monocrystalline diamond manufacturer/supplier, China monocrystalline diamond manufacturer & factory list, find qualified Chinese monocrystalline diamond manufacturers, suppliers, factories, exporters & wholesalers quickly on Made-in-China.com.

    Get Price
  • Shenzhen: The Frontier of China’s Gem and Jewelry

    2016-1-25 · The Index, like Rapaport’s diamond report, was the first national-level database to provide comprehensive information on China’s gem and jewelry industry. Considered a milestone of business development, CJI is fully supported by the local Shenzhen government, with intellectual support from the Gem …

    Get Price
  • Global Single Crystal MCD (Monocrystalline Diamond)

    2021-5-17 · MarketQuest.biz has announced the addition of a new report entitled Global Single Crystal MCD (Monocrystalline Diamond) Market 2021 by Manufacturers, Regions, Type and Application, Forecast to 2026 which contains exact logical data about the market. The report is the best and easiest way to understand the global Single Crystal MCD (Monocrystalline Diamond) market.

    Get Price
  • Monocrystalline Diamond - Beijing Grish Hitech Co.,Ltd

    2017-7-3 · Beijing Grish Hitech Co.,Ltd. is a joint venture company specializing with the research, manufacture and sales of polishing materials. We provide superior quality lapping and polishing films, polishing slurries and fine diamond powder as well as professional technical ...

    Get Price
  • GIA Team Documents the Chinese Gem and Jewelry Industry

    2013-11-18 · A GIA team traveled to China in the summer of 2013 on a quest to learn about the gem and jewelry industry there and its significance in the global industry. The team, led by Gems and Gemology’s (G&G) technical editor Dr. Tao Hsu who is originally from Beijing, wanted to tell the story of the Chinese industry …

    Get Price
  • Global and China Synthetic Diamond Industry Report,

    2020-9-12 · DUBLIN, Sept. 11, 2020 The 'Global and China Synthetic Diamond Industry Report, 2020-2026' report has been added to ResearchAndMarkets.com's offering. The...

    Get Price
  • Lab-grown diamonds shaking up the industry -

    2019-10-5 · Lab-grown diamonds, which have been used for industrial purposes for decades, are now shaking up the 87 billion consumer market as cheaper alternatives to mined gem stones. Replicating the ...

    Get Price
  • Gemstones Market: Global Industry Analysis and Forecast

    Gemstones Market: Global Industry Analysis and Forecast to 2015 to 2021. Gemstones Market is Segmented by types such as Loose stones, Color stones, Burmese gemstone, Colorstone, Ruby…

    Get Price
  • Gems & Jewelry Trade Shows in China - 10Times

    Gems & Jewelry - China trade shows, find and compare 22 expos, trade fairs and exhibitions to go - Reviews, Ratings, Timings, Entry Ticket Fees, Schedule, Calendar, Venue, Editions, Visitors Profile, Exhibitor Information etc. List of 8 upcoming jewellery & watches expos in China 2021-2022 1. Shenzhen International Jewellery Fair, 2. China International Fashion Fair, 3.

    Get Price
  • PMLA rules to apply to gem & jewellery sector with ...

    2017-9-1 · The provisions of the Prevention of Money-laundering Act (PMLA), 2002, will apply to the gem & jewellery sector with immediate effect, the Centre has said in a notification. According to the notification, any dealer of precious metals, precious stones, and other high-value goods with a turnover of Rs. 2 crore or more in a financial year will be ...

    Get Price
  • Gems & Jewelry Trade Shows in China - 10Times

    Gems & Jewelry - China trade shows, find and compare 22 expos, trade fairs and exhibitions to go - Reviews, Ratings, Timings, Entry Ticket Fees, Schedule, Calendar, Venue, Editions, Visitors Profile, Exhibitor Information etc. List of 8 upcoming jewellery & watches expos in China 2021-2022 1. Shenzhen International Jewellery Fair, 2. China International Fashion Fair, 3.

    Get Price
  • Genuine, Shiny synthetic monocrystalline diamond for All ...

    Purchase 100% genuine, shiny and uncut synthetic monocrystalline diamond at Alibaba.com for multiple uses. These synthetic monocrystalline diamond are ravishing in appearance and …

    Get Price
  • Electroplated Diamond Line Market Size By Type ...

    Electroplated Diamond Line Market Size By Type (Electroplated Diamond Long Wire, Ring Electroplated Diamond Wire), By Application (Monocrystalline Silicon, Polysilicon, Stone and Concrete, Sapphire, Others), Regional Analysis(Europe, Asia Pacific, America, Middle …

    Get Price
  • Journal of Gems & Gemmology

    2021-8-23 · 29. 2021-06. The Journal of Gems & Gemmology was selected into the Fine Periodical Exhibition to Celebrate the 70th Anniversary of the Founding of the People's Republic of China. 17. 2020-12. Journal of Gems & Gemmology: Understand the Latest Technology and Trends in the Jewelry Industry with an Academic Eye. 17.

    Get Price
  • Pestle Analysis of Gems and Jewelry

    2017-6-15 · The Gems and jewelry industry is one of the fastest growing sectors in international markets such as India, Bangladesh and many others. This substantial growth has pressurized companies to invest heavily on marketing and publicity of jewelry items. Despite of being an unorganized sector, the gem industry consists of companies whose business is ...

    Get Price
  • China Crystal, Crystal Wholesale, Manufacturers, Price ...

    China Crystal wholesale - Select 2021 high quality Crystal products in best price from certified Chinese Glass Crystal manufacturers, Color Crystal suppliers, wholesalers and factory on Made-in-China.com

    Get Price
  • Botswana unearths world's third largest diamond

    2021-6-17 · A 1,098 carat diamond believed to be the third largest gem-quality stone ever to be mined, has been discovered in Botswana, according to a joint …

    Get Price
  • Nuclear Medicine Market Analysis with Global Market Size ...

    2021-8-15 · New Report on “Nuclear Medicine Market size | Research Industry Segment by Applications (Diagnostic, Therapeutic ), by Type (Tc-99, I-123/131, In-111, Xe-133, Th-201, Ga-67), Regional Outlook, Market Demand, Latest Trends, Nuclear Medicine Industry Share & Revenue by Manufacturers, Company Profiles, Growth Forecasts – 2025.” Analyzes current market size and upcoming 5 years …

    Get Price
  • GemtoChina - China Gem Market & Jewelry Industry - 2020

    2020-4-20 · China Gem Market & Jewelry Industry - 2020 Now, China is the No.2 jewelry consumption market when the No.1 is the USA. And China is the No.1 jewelry manufacturing country. In traditional idea, Chinese people only like gold, jade and pearl jewels. Since early 1990s, De Beers started their marketing in China, success to explore the diamond market.

    Get Price
  • PMLA rules to apply to gem & jewellery sector with ...

    2017-9-1 · The provisions of the Prevention of Money-laundering Act (PMLA), 2002, will apply to the gem & jewellery sector with immediate effect, the Centre has said in a notification. According to the notification, any dealer of precious metals, precious stones, and other high-value goods with a turnover of Rs. 2 crore or more in a financial year will be ...

    Get Price
  • Say Goodbye to the Diamond Industry: Princess Gem

    2021-8-10 · Princess Gem presents the new era of engagement rings with sustainable moissanite gemstones for socially conscious couples in Singapore.SINGAPORE - Media OutReach - 10 August 2021 - Diamonds are a girl's best friend, so they say — but Kimberly Lin didn't want a ring that just looked valuable; she wanted one that had value. Kimberly, a 26-year-old millennial entrepreneur, was …

    Get Price
  • Diamonds A to Z - The Diamond Industry

    The diamond industry consists of segments that mines, processes and markets gem diamonds and industrial diamonds. Gem quality diamonds are mined primarily in Botswana, Russia, South Africa, Angola, Namibia, Australia and the Democratic Republic of the Congo . It takes an average of 250 tons of mined ore to produce one carat of finished diamond.

    Get Price
  • Colored Gemstones Market: Global Sales Analysis and ...

    In its latest version of the study, ESOMAR-certified market research and consulting firm Future Market Insights (FMI) offers insights about key factors driving demand for colored gemstones. The report tracks the global demand for colored gemstones in 20+ high-growth markets, along with analysing the impact COVID-19 has had on global sales.

    Get Price
  • Amsterdam Black Diamond - Largest Monocrystalline

    2021-8-20 · According to a certificate issued by the Gem Tech Lab Geneva bearing No. 10237 and dated September 27, 2001, the Amsterdam Diamond is a rare monocrystalline black diamond, whose coloration is natural caused by the presence of small graphite …

    Get Price
  • Journal of Gems & Gemmology

    2021-8-23 · 29. 2021-06. The Journal of Gems & Gemmology was selected into the Fine Periodical Exhibition to Celebrate the 70th Anniversary of the Founding of the People's Republic of China. 17. 2020-12. Journal of Gems & Gemmology: Understand the Latest Technology and Trends in the Jewelry Industry with an Academic Eye. 17.

    Get Price
  • Gems & Jewelry Market – Swot Analysis by Key Players:

    2020-12-12 · The global Gems & Jewelry market is valued at xx million US in 2018 and will reach xx million US by the end of 2025, growing at a CAGR of xx% during 2019-2025. The objectives of this study are ...

    Get Price
  • Heat Treatment - Gemstone Information - GemSelect

    2006-11-8 · Ruby is heated almost to its melting point, allowing the aluminum oxide in the stone to reform, creating a new crystal structure. This allows the chromium in the stone to combine with different atoms, allowing for a better red hue. The same can apply to a type of sapphire known as gouda sapphire.

    Get Price
  • Nuclear Medicine Market Analysis with Global Market Size ...

    2021-8-15 · New Report on “Nuclear Medicine Market size | Research Industry Segment by Applications (Diagnostic, Therapeutic ), by Type (Tc-99, I-123/131, In-111, Xe-133, Th-201, Ga-67), Regional Outlook, Market Demand, Latest Trends, Nuclear Medicine Industry Share & Revenue by Manufacturers, Company Profiles, Growth Forecasts – 2025.” Analyzes current market size and upcoming 5 years …

    Get Price
  • Diamond Products Manufacturers - China Diamond

    2021-7-7 · Diamond Products Manufacturers, Factory, Suppliers From China, We have more than 20 years experience in this industry, and our sales are well trained. We can give you the most professional suggestions to meet your products' requirements. Any troubles, come to us!

    Get Price
  • Luoyang Aimeil Diamond Co., Ltd. - CVD polycrystalline ...

    Luoyang Aimeil Diamond Co., Ltd., Experts in Manufacturing and Exporting CVD polycrystalline diamond,HTHP white mono diamond and 82 more Products. A Verified CN Gold Supplier on Alibaba.com.

    Get Price
  • THE GLOBAL DIAMOND INDUSTRY - Bain & Company

    2021-7-12 · Diamond Industry Report 2011 | Bain & Company, Inc. Page 1 Note to readers Diamonds are one of the world’s major resources—and historically one of the least understood. For many years observers and even many participants have considered the diamond industry to be complex and difficult to …

    Get Price
  • Crafting Comes Easy with Powerful industrial diamond ...

    industrial diamond dust ,diamond polishing powder,honing abrasives Granularity Synthetic Diamond Micro-Powder Related Products Henan Yalong Superhard Materials Co.,Ltd. We strictly comply with ISO9001 requiments to guaranteed the stability and traceability of product quality.

    Get Price
  • HKTDC Hong Kong International Diamond, Gem & Pearl

    2021-6-3 · The Hong Kong International Diamond, Gem & Pearl Show, organised by the HKTDC and held at the AsiaWorld-Expo, is a specialised trade platform for loose stones and raw materials. A wide range of diamonds, pearls, precious and semi-precious stones will be showcased to buyers from all over the world.

    Get Price
  • The Framework For An Ethical Diamond Industry

    1. Regulatory Framework and International Standards. The natural diamond industry abides by numerous international human rights frameworks and labor regulations, alongside country-specific regulations and further rigorous ethical, social, and environmental requirements to ensure it does business in the ethical diamond industry in a responsible way.

    Get Price
  • Specialty - Sharpeners

    Diamond abrasives provide the fastest, easiest and most effective way to sharpen an edge, steel or ceramic. The popular misconception is that ceramic knives don’t need sharpening; but, in fact, they do lose their edges, and are more prone to nicks and dings. All DMT® diamond sharpeners work on ceramics and hardened steels alike, and now the ...

    Get Price
  • Global CVD Diamond Market Report, History and Forecast ...

    A polished high quality CVD diamond costs 30% to 40% less than the mined diamond. Stone CVD diamonds are preferred by both gemological and industrial customers owing to their hardness, compatibility with cutting process and larger surface area. CVD diamonds are …

    Get Price
  • ALROSA introduces nano-marking technology to trace

    2021-7-8 · Patent research has confirmed that it is the first time this technology is being used for commercial purposes to trace rough and polished diamonds. ALROSA is currently seeking patents in the world’s major diamond-trading centres, and has started application processes in the US, China, Hong Kong, Macao, Taiwan, the UK, Israel, Belgium and India.

    Get Price
  • Super-Hard Materials Market Size, Share - Industry Growth ...

    The product finds its application in myriad end-user domains including automotive, building & construction, chemical and petrochemical industries. Rising manufacturing sector will provide momentous traction to the superhard materials industry. According to World bank, China’s …

    Get Price
  • Diamond Products Manufacturers - China Diamond

    2021-7-7 · Diamond Products Manufacturers, Factory, Suppliers From China, We have more than 20 years experience in this industry, and our sales are well trained. We can give you the most professional suggestions to meet your products' requirements. Any troubles, come to us!

    Get Price
  • PMLA rules to apply to gem & jewellery sector with ...

    2017-9-1 · The provisions of the Prevention of Money-laundering Act (PMLA), 2002, will apply to the gem & jewellery sector with immediate effect, the Centre has said in a notification. According to the notification, any dealer of precious metals, precious stones, and other high-value goods with a turnover of Rs. 2 crore or more in a financial year will be ...

    Get Price
  • Global CVD Diamond Market Report, History and Forecast ...

    A polished high quality CVD diamond costs 30% to 40% less than the mined diamond. Stone CVD diamonds are preferred by both gemological and industrial customers owing to their hardness, compatibility with cutting process and larger surface area. CVD diamonds …

    Get Price
  • High-Quality Lab Grown Diamonds

    WD Lab Grown Diamonds is the industry leader in Chemical Vapor Deposition (CVD) diamond growth. Our patented process enables us to create high-quality 'As Grown' diamonds in our state-of-the-art laboratory, without requiring post-growth treatment to enhance color. Chemically, physically, and optically the same as earth-mined, the only ...

    Get Price
  • 10 Countries That Produce the Most Diamond Gemstones ...

    2017-1-13 · Diamond production levels have remained steady in recent years, but industry analysts have predicted a dip in demand due in part to shifting preferences among millennials.

    Get Price
  • Diamonds A to Z - The Diamond Industry

    The diamond industry consists of segments that mines, processes and markets gem diamonds and industrial diamonds. Gem quality diamonds are mined primarily in Botswana, Russia, South Africa, Angola, Namibia, Australia and the Democratic Republic of the Congo . It takes an average of 250 tons of mined ore to produce one carat of finished diamond.

    Get Price
  • Gem School - Gemology School - Gemologist School

    Course Modules: Gem Identification 12 weeks. Synthetic and Treated Gem Identification 4 weeks. Colored Stone Grading and Pricing 4 weeks. Diamond Grading and Pricing 4 weeks. Duration: 6 months (Bangkok) 600 Hours. Pre-requisites: No experience required, Minimum 16 years of age.

    Get Price
  • Gem-A

    2021-8-30 · The Gemmological Association of Great Britain, or Gem-A, is the world’s longest established provider of gem and jewellery education. Our Gemmology Diploma evolved from the first gem course proposed for the UK jewellery trade in 1908, and our prestigious Gemmology and Diamonds Diplomas — taught in seven different languages and 26 countries around the world — are recognised throughout …

    Get Price
  • Diamond: A gem mineral with properties for industrial use

    Most industrial-grade diamonds are brown, yellow, gray, green and black crystals that lack the color and clarity to be a nice gem. Diamond is harder than a streak plate. Its streak is known as 'none' or 'colorless'. Adamantine - the highest level of luster for a …

    Get Price
  • Tucson Gem Show

    2021-8-30 · July 10th, 2019. September 3 – 6, 2021 JOGS Tucson Gem & Jewelry Fall Show May 20th, 2019. The Tucson Gem Show 2020 Calendar is filling up! April 30th, 2019. Tucson Gem Show 2019 Registration Now Open September 6th, 2018. The JOGS Tucson Gem …

    Get Price
  • THE GLOBAL DIAMOND INDUSTRY - Bain & Company

    2021-7-12 · Diamond Industry Report 2011 | Bain & Company, Inc. Page 1 Note to readers Diamonds are one of the world’s major resources—and historically one of the least understood. For many years observers and even many participants have considered the diamond industry to be complex and difficult to comprehend, even impenetrable.

    Get Price
  • Diamond Products Manufacturers - China Diamond

    2021-7-7 · Diamond Products Manufacturers, Factory, Suppliers From China, We have more than 20 years experience in this industry, and our sales are well trained. We can give you the most professional suggestions to meet your products' requirements. Any troubles, come to us!

    Get Price
  • Industrial Diamonds - As Good as Gemstones, or Better?

    2014-9-30 · Industrial Diamonds – As Good as Gemstones, or Better? By Ali Somarin 09.30.2014. When many people think of diamonds, they think of sparkly gemstones used for engagement rings, but the truth is, only about 30% of diamonds are of “gem quality” and suitable for jewelry. The remaining 70% of mined diamonds…

    Get Price
  • Backgrounder on Irradiated Gemstones

    2021-1-6 · Backgrounder on Irradiated Gemstones. Printable Version. Some gemstones are exposed to radiation to enhance or change their color. Topaz is the most commonly treated stone. Typically orange, topaz becomes blue after it has been exposed. Diamonds and other precious gems may also be treated with radiation. This process of irradiation can make the ...

    Get Price
  • CVD Diamond - FAQ

    2019-1-10 · Natural diamonds show a widespread range of properties. A sophisticated system for the categorization of natural diamond stones with respect to color, clarity, defects and so on has been established. High-quality polycrystalline CVD diamond does have similar properties like perfect natural stones.

    Get Price
  • Strong Origins: Current Perspectives on the Diamond

    2019-12-11 · Global diamond jewelry retail posted 2% sales growth in 2018, but sales are expected to decline by up to 2% in 2019, based on the results of the first three quarters. A strong holiday season could reverse the trend. In 2019, US diamond jewelry retail …

    Get Price
  • Manufacturer and Wholesaler of Gemstones in india - Ishu

    Ishu Gems A Gemstone Business For Jewelry Making. Buy Online Gems Cabochon, Cut, Pearl, Beads, Chips For Birthday, Wedding, Love, Gift. Follow Social Blog On Facebook, Youtube, Google, Yahoo, Tumblr, Pinterest. Since 2005, Ishu Gems Has Been Selling …

    Get Price
  • Gem-A

    2021-8-30 · The Gemmological Association of Great Britain, or Gem-A, is the world’s longest established provider of gem and jewellery education. Our Gemmology Diploma evolved from the first gem course proposed for the UK jewellery trade in 1908, and our prestigious Gemmology and Diamonds Diplomas — taught in seven different languages and 26 countries around the world — are recognised throughout …

    Get Price
  • Global Synthetic Diamond Market Size, 2024

    Industry Insights. The global synthetic diamond market size was estimated to be worth USD 14.9 billion in 2016. Also known as cultured, cultivated or artificial diamonds, they are increasingly used for an array of applications other than industrial including abrasives, laser optics, and telecommunication.

    Get Price
  • Home

    The International Colored Gemstone Association (ICA) is the only worldwide body specifically created to benefit the global colored gemstone industry. Join industry professionals worldwide for the opportunity to work together to expand the market for natural colored gemstones.

    Get Price
  • PMLA rules to apply to gem & jewellery sector with ...

    2017-9-1 · The provisions of the Prevention of Money-laundering Act (PMLA), 2002, will apply to the gem & jewellery sector with immediate effect, the Centre has said in a notification. According to the notification, any dealer of precious metals, precious stones, and other high-value goods with a turnover of Rs. 2 crore or more in a financial year will be ...

    Get Price
  • Gems and Jewellery Industry in India, Indian, Diamond ...

    2020-8-16 · As of January 2021, India’s gold and diamond trade contributed ~7.5% to India’s Gross Domestic Product (GDP) and 14% to India’s total merchandise exports. The gem and jewellery sector is likely to employ ~8.23 million persons by 2022, from ~5 …

    Get Price
  • Global CVD Diamond Market Report, History and Forecast ...

    A polished high quality CVD diamond costs 30% to 40% less than the mined diamond. Stone CVD diamonds are preferred by both gemological and industrial customers owing to their hardness, compatibility with cutting process and larger surface area. CVD diamonds …

    Get Price
  • ALROSA introduces nano-marking technology to trace

    2021-7-8 · Patent research has confirmed that it is the first time this technology is being used for commercial purposes to trace rough and polished diamonds. ALROSA is currently seeking patents in the world’s major diamond-trading centres, and has started application processes in the US, China, Hong Kong, Macao, Taiwan, the UK, Israel, Belgium and India.

    Get Price
  • These five trends are playing out in the diamond industry ...

    2021-2-16 · 4. Secular consumer demand growth out of China: 2020 reiterated the strength and resilience of the Chinese consumer market for diamonds. Despite lockdowns and economic uncertainty, Chinese demand ...

    Get Price
  • Colored Gemstones Market: Global Sales Analysis and ...

    In its latest version of the study, ESOMAR-certified market research and consulting firm Future Market Insights (FMI) offers insights about key factors driving demand for colored gemstones. The report tracks the global demand for colored gemstones in 20+ high-growth markets, along with analysing the impact COVID-19 has had on global sales.

    Get Price
  • The Woman Shaking Up the Diamond Industry

    2020-1-27 · The Woman Shaking Up the Diamond Industry. Eira Thomas’s company has used radical new methods to find some of the biggest uncut gems in history.

    Get Price
  • Sarine - A World leader in the diamond industry

    Diamond grading that’s no longer bound by the walls of the gem lab. A New Era in Diamond Grading is Finally Here . WHAT WE DO. Sarine’s technologies create value for everyone in the diamond industry: unlocking the value of rough diamonds for …

    Get Price
  • Diamonds A to Z - Diamond Jobs - photius.com

    DIAMOND JOB DESCRIPTIONS. DIAMOND SIZER AND SORTER. Sorts diamonds according to size for use in watches and jewelry, using sieve, loupe, and precision measuring instruments.. more>. BRILLIANDEER-LOPPER. Cuts and polishes facets, table, and culet on diamonds, using table-mounted polishing plate.. more>. DIAMOND SELECTOR.

    Get Price
  • Is Moissanite a Diamond? - The Brilliance.com Blog

    Although a diamond is a 10 on the MOHs scale of hardness, Moissanite is a 9.25. The colorless clear beauty and sparkling fire of Moissanite allows the stone to be the ideal substitute for buyers who want the look of diamonds without the ethical dilemma or higher cost. Moissanite isn’t a diamond duplicate, rather a completely unique and fiery ...

    Get Price
  • Home

    The International Colored Gemstone Association (ICA) is the only worldwide body specifically created to benefit the global colored gemstone industry. Join industry professionals worldwide for the opportunity to work together to expand the market for natural colored gemstones.

    Get Price
  • Diamond Journey‎ NEW - Sarine

    Originating deep inside the earth, a diamond’s journey from mine to manufacturer, and finally, to jewelry store, is unique and fascinating. At every stage of diamond manufacturing – modeling, mapping, planning, cutting and polishing – Sarine’s advanced technologies are used to ensure the gemologist achieves the most valuable polished gem.

    Get Price
  • GRADUATE GEMOLOGIST ® (GRADUATE DIAMONDS -

    Earn the most prestigious credential in the industry. GIA’s Graduate Gemologist ® Diploma Programme gives you comprehensive knowledge of diamonds and coloured stones you need to succeed anywhere in the jewellery business. You will gain both technical expertise and practical skills to evaluate diamonds by the GIA 4Cs (Colour, Clarity, Cut, and Carat Weight) and the GIA International Diamond ...

    Get Price
  • Amsterdam Black Diamond - Largest Monocrystalline

    2021-8-20 · According to a certificate issued by the Gem Tech Lab Geneva bearing No. 10237 and dated September 27, 2001, the Amsterdam Diamond is a rare monocrystalline black diamond, whose coloration is natural caused by the presence of small graphite …

    Get Price
  • Nano Nano! Alrosa Unveils New Diamond Tracking System

    2021-7-7 · 

    Alrosa has unveiled a new diamond tracking system that uses nanotechnology to engrave gems, potentially allowing them to be traced from the mine all the way to the consumer. The technology aims to solve the biggest problem in tracking a rough diamond from mine to market: Since rough diamonds are commonly cut, any mark put…

    Get Price
  • Get Price
  • 4 New Questions for the Lab-Grown Diamond Market – JCK

    2019-1-25 · Industry norms generally call for treatment disclosure. But, given that lab-growns are nonnatural products, the subject has rarely come up. Under the Federal Trade Commission (FTC) Guides, treatments must be disclosed if they are not permanent, require special care, or affect the value of the stone. The first two criteria clearly don’t apply.

    Get Price
  • Gem Testing – Gemmological Association of Australia

    Gem Studies Laboratory (GSL) in Sydney is the Gemmological Association of Australia’s endorsed diamond grading laboratory. GSL (Gem Studies Laboratory) was started over twenty years ago to meet the demand in Australia for a first-rate diamond laboratory. Today it has become the best known independent diamond certification and gem ...

    Get Price
  • Jewellery Industry in Hong Kong

    2020-8-28 · In January-May 2020, Hong Kong’s fine jewellery exports registered a 41% year-on-year decrease, while those of imitation jewellery fell by 22%. The exports of pearls, gem-stones and rough diamonds showed a similar downward trend, with a …

    Get Price
  • How do you know your diamond isn't fake? - BBC News

    2019-7-1 · Diamonds are a huge business, with 133 million carats (about 27 tonnes) of rough diamonds worth about 15bn-16bn (£12bn-£13bn) mined each year, according to Boston consulting firm Bain ...

    Get Price
  • Diamond Moissanite Rings in Singapore - PRINCESS GEM

    Quality Assurance. We only use excellent cut premium moissanite with the best clarity and colourless stone grades D-F. Every moissanite from Princess Gem is guaranteed with a lab report and shows positive on the diamond tester. Our gold and silver rings have been tested by Singapore Assay Office (SAO) and certified to be genuine pieces.

    Get Price