Origins of Sapphire: Kashmir, Ceylon, Australian and Montana Sapphire

Sapphire, whether from Sri Lanka, Madagascar, Thailand, Africa, or Montana US, all have the same chemical composition – they’re all corundums.  The difference lies in their growing environments and the trace elements present during their formation. Quality characteristics such as… Read the full article on marketsquarejewelers.com

Caring for Emerald Jewelry | A Guide for Cleaning and Maintenance

We just sold the most amazing oval emerald in our Portland, Maine store; a 5 carat oval in a simple yellow gold mounting. One of the customer’s biggest concerns was how best to care and maintain this high-end and rare gemstone so that she can always enjoy it and eventually pass its beauty to a family…

Demantoid Garnet, A Green Variety of January’s Birthstone

First discovered in the Ural Mountains of Russia in the 1860’s, demantoid garnet soon became a sought after gem of European aristocracy. This green gem was set in jewelry of every type, from simple Victorian rings to ornate lavalier pendants. For years it was a favored treasure, until, eventually, the mines became depleted. While this scarcity meant… Read…