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2. Diamond (gemstone) - Wikipedia

   en.wikipedia.org/wiki/Diamond_(gemstone)

   Since the per carat price of diamond shifts around key milestones (such as 1.00 carat (200 mg)), many one-carat diamonds are the result of compromising cut for carat. Some jewelry experts advise consumers to buy a 0.99-carat (198 mg) diamond for its better price or buy a 1.10-carat (220 mg) diamond for its better cut, avoiding a 1.00-carat (200 ...

3. Carat (mass) - Wikipedia

   en.wikipedia.org/wiki/Carat_(mass)

   The carat (ct) is a unit of mass equal to 200 mg (0.00705 oz; 0.00643 ozt), which is used for measuring gemstones and pearls. The current definition, sometimes known as the metric carat, was adopted in 1907 at the Fourth General Conference on Weights and Measures, [1] [2] and soon afterwards in many countries around the world.

4. Diamond - Wikipedia

   en.wikipedia.org/wiki/Diamond

   In May 2009, a 7.03-carat (1.406 g) blue diamond fetched the highest price per carat ever paid for a diamond when it was sold at auction for 10.5 million Swiss francs (6.97 million euros, or US$9.5 million at the time). [59]

5. The Rock (diamond) - Wikipedia

   en.wikipedia.org/wiki/The_Rock_(diamond)

   The Rock is a 228.31-carat white diamond which has been graded by the Gemological Institute of America. It has G color, VS1 clarity. [1] The color of white diamonds can range from D to Z: D-color is the highest grade for white diamonds, and it is the rarest and most expensive. The Rock is G-color, which is the fourth whitest level of white ...

6. Gemological Institute of America - Wikipedia

   en.wikipedia.org/wiki/Gemological_Institute_of...

   Diamond reports from GIA (as well as other, for-profit sources) are now demanded by most consumers purchasing diamonds over a certain size, typically for over 0.5 carat (100 mg), and almost always for over 1.0 carat (200 mg), and are considered an important tool in guaranteeing that a diamond is accurately represented to a potential buyer.

7. Jennifer Lopez Will Keep 8.5-Carat Green Diamond Engagement ...

   www.aol.com/jennifer-lopez-keep-8-5-022707887.html

   Lopez will keep the large green diamond ring, estimated to be worth over $5 million. The 8.5-carat, radiant-cut green diamond is flanked by two half-moon accent diamonds and set on a platinum band.