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Sapphires are a precious gemstone, a variety of the mineral corundum, consisting of aluminum oxide (α-Al 2 O 3) with trace amounts of elements such as iron, titanium, chromium, copper, or magnesium. It is typically blue, but natural "fancy" sapphires also occur in yellow, purple, orange, and green colors; "parti sapphires" show two or more colors.
The most popular form of sapphire is blue sapphire, which is known for its medium to deep blue colour and strong saturation. Fancy sapphires of various colours are also available. In the United States, blue sapphire tends to be the most popular and most affordable of the three major precious gemstones (emerald, ruby, and sapphire).
A gemstone (also called a fine gem, jewel, precious stone, semiprecious stone, or simply gem) is a piece of mineral crystal which, when cut or polished, is used to make jewelry or other adornments.
Ruby is a pinkish red to blood-red colored gemstone, a variety of the mineral corundum (aluminium oxide). Ruby is one of the most popular traditional jewelry gems and is very durable. Other varieties of gem-quality corundum are called sapphires. Ruby is one of the traditional cardinal gems, alongside amethyst, sapphire, emerald, and diamond. [3]
[6] [7] In 2006, the Champion's bracelet had 259 stones including 7.2 carats (1.4 g) of diamonds, 120 grams of white and yellow gold. It also used rubies to represent the heart and diamond suits, a sapphire to represent the spade and three black diamonds to represent the clubs. [3] In 2007, Corum became the official bracelet manufacturer for ...
"Yogo sapphire" is the preferred term for gems found in the Yogo Gulch, whereas "Montana sapphire" generally refers to gems found in other Montana locations. More gem-quality sapphires are produced in Montana than anywhere else in North America. Sapphires were first discovered in Montana in 1865, in alluvium along the Missouri River. Finds in ...
49ers RB depth chart. Isaac Guerendo. Patrick Taylor. Ke'Shawn Vaughn. Israel Abanikanda.
They include the 51.60-carat (10.320 g) Emerald of Saint Louis, [40] the 135.80-carat (27.160 g) 'Ruspoli' sapphire [41] the Topaze (28.10 carats) and great Emerald (17 carats) of Louis XIV, the diamond pins of Queen Marie Antoinette, the Diamond-portrait (9.10 carats) and the Amethyst of Empress Marie Louise, the great Opal of Louis XVIII, the ...