The six pieces described below are part of the royal collection, held in trust by her majesty queen elizabeth ii for her successors and the nation, or the personal property of queen elizabeth ii. Perhaps the best-loved gems of all time, pearls—natural and cultured—occur in a wide variety of colors. The most familiar are white and cream, but the palette of colors extends to every hue.

Gia® in carlsbad is one of the world's great gemological research facilities and grading centers – and it's also a stunning gem and jewelry museum. Exhibits include riches in the rocks, trilliant-cut gems. Gems & gemology is the quarterly scientific journal of the gemological institute of america. Gia's gem encyclopedia is a virtual journey through the science and lore of gemstones from across the globe. Each precious stone page features additional detailed gemological information, a buyer's. Global standard gia reports are the benchmark of analysis and grading, and those who buy, sell or curate the world's most important gems rely on gia. Established in 1931, gia is an independent nonprofit that protects the gem and jewelry buying public through research, education and laboratory services.

Each precious stone page features additional detailed gemological information, a buyer's. Global standard gia reports are the benchmark of analysis and grading, and those who buy, sell or curate the world's most important gems rely on gia. Established in 1931, gia is an independent nonprofit that protects the gem and jewelry buying public through research, education and laboratory services.