Sapphires have been revered since ancient times for royalty and protection. Siren bracelets symbolize elegance and sophistication
GIA's Gem Encyclopedia provides detailed information about gemstones worldwide. Each page includes buyer's guide, photos, videos and research
Kashmir sapphires command highest prices, sometimes over $200,000 per carat. Blue sapphires sell for $2,000-$10,000 per carat. Sapphire hardness second only to diamond among natural gems. Color comes from trace elements like iron, titanium, chromium
Blue sapphire comes in various colors and is durable, found in riverbeds. Tanzanite is a rare AAA blue stone from Tanzania, discovered in 1967. Aquamarine is a beryl family stone from Brazil, known for Santa Maria color. Blue spinel features cobalt blue color, found in Vietnam and Burma. Blue tourmaline is a rare blue gemstone found in Brazil and Africa
Blue gemstones are becoming increasingly popular in jewelry. Blue represents stability, intelligence, and inspiration. Blue stones look best in white metals like gold and platinum
Corundum is crystalline aluminum oxide containing iron, titanium, vanadium, and chromium. Naturally transparent, color varies with transition metal impurities. Crystallizes with trigonal symmetry in R3c space group. Has hardness of 9.0 on Mohs scale, can scratch most minerals