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The main stone, named the Graff Lesedi La Rona, is the world's largest emerald-cut diamond. It is a D-color (totally colorless), high-clarity stone weighing 302.37 carats (60.474 g; 2.1332 oz). According to Graff, the stone is the "largest highest clarity, highest color diamond ever graded by the Gemological Institute of America (GIA)". The ...
A gemstone desired to be used in jewelry is cut depending on the size and shape of the rough stone, as well as the desired piece of jewelry to be made. As a general rule, a cut gemstone will reduce the mass (in carats) by about 50%. [1] Among the several techniques used to work with gemstones are sawing, grinding, sanding, lapping, polishing ...
A diamond cut is a style or design guide used when shaping a diamond for polishing such as the brilliant cut. Cut refers to shape (pear, oval), and also the symmetry, proportioning and polish of a diamond. The cut of a diamond greatly affects a diamond's brilliance—a poorly-cut diamond is less luminous.
The cut of a diamond describes the manner in which a diamond has been shaped and polished from its beginning form as a rough stone to its final gem proportions. The cut of a diamond describes the quality of workmanship and the angles to which a diamond is cut. Often diamond cut is confused with "shape".
Emerald is a gemstone and a variety of the ... Unlike diamonds, where the ... Faceted emeralds are most commonly given an oval cut, or the signature emerald cut, a ...
It featured a necklace consisting of a rare emerald-cut Australian pink diamond weighing one full carat, surrounded by white diamonds weighing three carats and a diamond cubism ring.
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