An Old oval cut Sapphire Natural gemstone. Color: Yellow. Weight: 1.42 g. (7.32 ct). The sapphire is a corundum, an aluminum oxide with a trigonal crystal structure, in the same family as the ruby. The only difference between a ruby and a sapphire is simply the color. A red corundum is a ruby. Other colored corundums are called sapphires, which come in many colors, the most well known being blue. Because sapphires are available in so many colors, they are the most important and versatile of all the gemstones. Antique and Vintage Natural Gemstones, Jewelry Wares For Collectors.

Dimensions: Size: 3/8 x 13/32 x 6/32 in. All measurements are approximate.