Nathan D. Renfro, November 7, 2016
Determines whether blue zircon, inadvertently altered to brown by exposure to long-wave UV radiation, can be restored to its original colour through the use of incandescent light.
Read More
Learn about fancy colour diamond's durability and how to care for your fancy-coloured diamond jewellery.
Read More
These tips will help you make sure your diamond shines its best for any occasion.
Read MoreAl Gilbertson, May 5, 2016
Find out more about what causes a diamond to chip, and 8 tips on how you can avoid chipping your diamond.
Read More
Learn about alexandrite's durability and how to care for your alexandrite jewellery.
Read More
Learn about ruby's durability and how to care for your ruby jewellery.
Read More
Learn about garnet's durability and how to care for your garnet jewellery.
Read MoreMichael Gray, March 1, 1988
The techniques for cutting and polishing gemstone giants.
Read MoreDeborah Dupont Martin, June 1, 1987
A treatise on the design, display, care and repair of fine gemstones.
Read More
Learn about kunzite's durability and how to care for your kunzite jewellery.
Read MoreYou are being redirected to GIA Alumni Association, LLC.