If you had to pick one December birthstone, which would it be: tanzanite, turquoise or zircon? From the blue to bluish purple of tanzanite, to the intense blue and green of turquoise, t… See more

The prized even-colored, intense blue turquoise from Iran is dubbed “robin’s egg blue," "sky blue" and "Persian blue." Some turquoises are treated but can be damaged by heat or s… See more

Only place on earth where tanzanite is mined commercially is in northern Tanzania's Merelani Hills. Thousands of workers recover tanzanite from mines dug over 100 me… See more

Comes in a wide array of attractive colors including yellow-brown, pink and purple; found in Sri Lanka's Elahera region and Australia's Harts Range near Alice Springs; often locate… See more