Ads
related to: alexandrite birthstone ringetsy.com has been visited by 1M+ users in the past month
- Black-Owned Shops
Discover One-of-a-Kind Creations
From Black Sellers In Our Community
- Star Sellers
Highlighting Bestselling Items From
Some Of Our Exceptional Sellers
- Free Shipping Orders $35+
On US Orders From The Same Shop.
Participating Shops Only. See Terms
- Personalized Gifts
Shop Truly One-Of-A-Kind Items
For Truly One-Of-A-Kind People
- Black-Owned Shops
jewlr.com has been visited by 10K+ users in the past month
elizabeth-gage.com has been visited by 10K+ users in the past month
Search results
Results from the WOW.Com Content Network
In 1912, to standardize birthstones, the (American) National Association of Jewelers (now called Jewelers of America) met in Kansas and officially adopted a list. [1]: 317 The Jewelry Industry Council of America updated the list in 1952 [3]: 311 by adding Alexandrite for June, citrine for November and pink tourmaline for October.
Alexandrite in sizes over three carats are very rare. Today, several labs can produce synthetic lab-grown stones with the same chemical and physical properties as natural alexandrite. Several methods can produce flux-grown alexandrite, Czochralski (or pulled) alexandrite, and hydrothermally-produced alexandrite.
Synthetic alexandrite is an artificially grown crystalline variety of chrysoberyl, composed of beryllium aluminum oxide (BeAl 2 O 4). The name is also often used erroneously to describe synthetically-grown corundum that simulates the appearance of alexandrite , but with a different mineral composition.
Lab alexandrite; Lab corundum; Cubic zirconia; Lab diamond; Lab emerald; Fordite; Gadolinium gallium garnet; Lab moissanite; Synthetic opal; Metal-coated crystals hyped as rainbow quartz; Lab spinel; Synthetic turquoise; Terbium gallium garnet; Trinitite; Yttrium aluminium garnet; Yttrium iron garnet
The scientific name of "blue-violet zoisite" was not thought to be sufficiently consumer friendly by Tiffany's marketing department, who introduced it to the market in 1968. In 2002, the American Gem Trade Association chose tanzanite as a December birthstone, the first change to their birthstone list since 1912. [8]
Bahia Emerald [2]; Carolina Emperor, [3] [4] 310 carats uncut, 64.8 carats cut; discovered in the United States in 2009, resides in the North Carolina Museum of Natural Sciences, Raleigh, NC, US
Ads
related to: alexandrite birthstone ringetsy.com has been visited by 1M+ users in the past month
jewlr.com has been visited by 10K+ users in the past month
elizabeth-gage.com has been visited by 10K+ users in the past month