GAME CHANGERS JNA LAB-GROWN DIAMOND SPECIAL 2022 | 16 HPHT and CVD growth methods 高温高压(HPHT)和化学气相沉积培育方法 The Gemological Institute of America (GIA) is helping consumers make informed buying decisions by providing stateof-the-art grading and identification services for lab-grown diamonds (LGD). At the heart of these initiatives is the GIA Laboratory-Grown Diamond Report alongside continuous research on LGDs, according to Tom Moses, executive vice president and chief laboratory and research officer at GIA. The digital reports cater to labgrown diamonds in the D to Z range as well as fancy colour diamonds. They include colour and clarity specifications, the method used to grow the LGDs and whether there is evidence of post-growth treatment. Moses underscored the importance of certification in the LGD field, noting growing demand for GIA’s Laboratory-Grown Diamond Reports amid rising consumer awareness. “As laboratory-grown diamonds have gained acceptance in the trade and by consumers, often as a category distinct from natural diamonds, it is important that their origin and characteristics are properly disclosed,” he said. GIA first examined gem-quality lab-grown diamonds created by General Electric more than 50 years ago and published the first scientific study of the then-new material in 1971. At present, GIA can identify LGDs produced via high pressure, high temperature (HPHT) and chemical vapor deposition (CVD) methods with 美国宝石研究院( G I A )通过 最先进的实验室培育钻石 (LGD)分级和鉴定服务，协 助消费者作出明智的购买决定。GIA 执行副总裁兼鉴定所和研究室首席 官Tom Moses表示，他们的核心项目 包括推出GIA实验室培育钻石报告， 以及就着这个钻石范畴的最新发展 持续进行研究。 该些数字报告适用于D至Z级颜 色的实验室培育钻石和彩色钻石，资 料包括颜色和净度规格、培育钻石的 方式，以及产品有否经过后期处理。 Moses强调鉴定报告在LGD领域 的重要性，并指出消费者意识提高的 同时，对GIA实验室培育钻石报告的 需求也不断增加。他说：“实验室培 育钻石越来越受业界和消费者认可， 亦被视为有别于天然钻石的类别，因 此，精确而详细地列出其来源和特质 是非常重要的。” 50多年前，GIA首次鉴定由通用电 气公司培育的宝石级LGD钻石，并在 1971年发表了对当时这项崭新物料 的第一份科研文献。如今，GIA已能够 百分百准确辨识以高温高压(HPHT) 和化学气相沉积法(CVD)生产的钻 石，并继续对培育钻石进行广泛而深 入的研究，领先一步了解培育程序、 处理方式和技术上的发展。 Moses透露：“研究工作包括在自 家科研设施中培育CVD钻石，以确保 我们能够掌握最新的技术、生产程序 和加工处理技巧。我们还会使用这些 内部生产的合成钻石，来改善和测试 我们的鉴别能力。” GIA窥见实验室培育钻石在珠宝 和宝石业的闪亮机遇，大前提是加以 善用。Moses称，现代培育技术使生产 商能够制造数量更多、尺寸更大的优 质钻石，以供应宝石和珠宝市场。 100 per cent accuracy. It continues extensive and in-depth research on lab-grown diamonds to stay ahead of advances in growth processes, treatments and technology. “That research includes growing CVD diamonds in our own research facility to ensure we have up-todate insights into new technology, processes and treatments. We also use these in-house produced synthetic diamonds to refine and challenge our identification abilities,” Moses disclosed. GIA sees glowing opportunities for lab-grown diamonds, provided these are properly disclosed. Moses said modern growth technologies have allowed producers to grow highquality LGDs in greater quantities and bigger sizes for the gem and jewellery market. The Gemological Institute of America is relentlessly making advances in lab-grown diamond testing and identification to foster consumer trust and confidence in the thriving LGD sector. 美国宝石研究院致力提升实验室培育钻石的测试 和鉴定水平，从而深化消费者对这个蓬勃行业的信任和信心。 GIA leads LGD grading and identification 推动培育钻石分级和鉴定发展 GIA Laboratory-Grown Diamond Report GIA实验室培育钻石报告
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