In the microhardness survey test, a pyramid-shaped diamond is impressed into 23 or more points across the face of a weld sample cross section.

在显微硬度测试中，在焊缝试样横截面上用锥形金刚石压入23或更多的点。

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The10th largest white diamond ever to be found, it will be cut into a large heart-shaped diamond and several smaller stones which will then be sold.

这颗目前世界排名第10的白色钻石将被切割成一大颗心形钻石和数颗小钻石出售。

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The 10th largest white diamond ever to be found, it will be cut into a large heart-shaped diamond and several smaller stones which will then be sold.

这颗目前世界排名第10的白色钻石将被切割成一大颗心形钻石和数颗小钻石出售。

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When he opened it, I saw a large diamond shaped like a rose.

VOA: special.2009.07.25

The ring is set with a 11.13-ct. cushion shaped diamond of fancy vivid yellow color and VS2 clarity.

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

Ring mounted with a heart-shaped diamond weighing 2 carats to the tapered baguette-cut diamond shoulders with plain hoop.

FORBES: Connect

Mr. Winston offered the man and his wife a choice: The 68.90 carat emerald or a 69.42 carat pear-shaped diamond.

FORBES: Connect