A cube-shaped rock plucked out of his sifters turned out to be a 4.38-carat, tea-colored diamond.

一块从筛子上拔出的方形石头原来是一块重4.38克拉（0.876克）的茶色钻石。

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But unlike the deep aquamarine, the green tinge colored diamond is not that favored, although they tend to be attractive.

但有别于深湖水蓝，绿色彩的有色钻石，是不看好，虽然它们往往会有吸引力。

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Mengyin of Shandong province is one of the four big main diamond producing areas in our country, which is rich in the colored diamonds.

山东蒙阴是我国四大主要金刚石产地之一，并且盛产彩色金刚石。

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The only other fancy colored diamond grading guide in existence is from the Gemological Institute of America.

FORBES: A Guide for Fancy Colored Diamonds

Among the colored diamond highlights is an oval-cut fancy intense yellow, internally flawless diamond of 68.35 carats with excellent polish and symmetry.

FORBES: Big Diamonds Lead Christie's Magnificent Jewels Sale

Leading the way were five fancy colored diamonds, one white diamond and an emerald all exceeding the million-dollar mark with four items smashing top pre-sale estimates.

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