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The Qamar-I-Sultana, a 44 carats (8.8 g; 0.31 oz), colorless, marquise cut. Queen Marie of Roumania sapphire, a 478.68 carat cushion cut from Sri Lanka. Set and reset by Cartier in the early 1900s, it forms a drop pendant. When sold in 2003, it was the largest sapphire ever sold at auction. [30]
The most common setting for engagement rings is the solitaire prong setting, which was popularized by Tiffany & Co. in 1886 and its six-claw prong setting design sold under the "Tiffany setting" trademark. The modern favorite cut for an engagement ring is the brilliant cut, which provides the maximum amount of sparkle to the gemstone. [46]
This cut's design can be considered the opposite of the hearts and arrows, as it eliminates the arrows in order to capture a different light return from the center of the diamond. The cut splits the eight pavilion mains and increases the specifically-placed total facets from 57 to 81. The cut was designed to enhance brilliance and mask inclusions.
Princess cut diamond set in a ring. The princess cut (technical name 'square modified brilliant') is a diamond cut shape often used in engagement rings. The name dates back to the 1960s, while the princess cut as it exists was created by Betazel Ambar, Ygal Perlman, and Israel Itzkowitz in 1980.
Cullinan III and IV are two of several stones cut from the Cullinan Diamond in 1905. The large diamond, found in South Africa, was presented to Edward VII on his 66th birthday. Two of the stones cut from the diamond were the 94.4-carat (18.88 g) Cullinan III, a clear pear-shaped stone, and a 63.6-carat (12.72 g) cushion-shaped stone.
The Hope Diamond is a 45.52 carats (9.104 g; 0.3211 oz) diamond that has been famed for its great size since the 18th century. Extracted in the 17th century from the Kollur Mine in Guntur, India, [1] [2] the Hope Diamond is a blue diamond.
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