For example, G10 garnets, a type of garnet typically found in diamond-rich pipes, are lower in calcium and higher in chrome than garnets from barren pipes.

例如，G10 石榴石，一种通常发现于富含钻石的管道中的石榴石，与无钻石管道中的石榴石相比，其钙含量较低，铬含量较高。

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"This is a huge milestone in this type of laser research," said Stephen Durbin, a scientist at Purdue University, in an accompanying article in the journal Nature Physics about the diamond mirror.

普渡大学的科学家，斯蒂芬说德宾在《自然物理学杂志》的一篇关于钻石镜的附加文章中说：“这是此种类型的激光研究的重大里程碑。”

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So we chose a cheaper type of diamond with the simplest design and I borrowed 50,000 yuan from my parent to pay for it.

我们选了一款便宜的，设计简单的宝石，我从家里又借了50,000元。

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It features a pear-shaped D color, type IIa diamond of 15.31 cts. and VVS2 clarity before.

FORBES: 30.52-ct. emerald-cut diamond sold for $3.3 million.

Gemesis colorless diamonds are all certified as Type IIa, the purest type of diamond, almost or entirely devoid of chemical impurities.

FORBES: Gem-Quality White Diamonds Created in Laboratory

Adding to their allure is that they have also been determined to be Type IIa, the most chemically pure form of diamond showing exceptional appeal transparency.

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