Emerald enhancers

The Gemmological Association of Australia outlines some of the treatments used to enhance the appearance of emeralds, aquamarines and other beryls. more...

[Thu 20/08/2009 04:06:21]

Quartz - and its many treatments

The Gemmological Association of Australia outlines a few of the many methods used to treat quartz. more...

[Wed 20/05/2009 10:28:23]

The Bold and the Beautiful

An introductory guide to the world of coloured gemstones by the International Colored Gemstone Association. more...

[Mon 16/03/2009 02:20:06]

Topaz, tanzanite and treatments

Like almost all precious and semi-precious gemstones topaz and tanzanite are increasingly being enhanced with treatments. more...

[Thu 01/01/1970 10:00:00]

Emeralds - an Australian discovery

Emeralds, the birthstone of May, have been prized as precious jewels for thousands of years. more...

[Thu 22/01/2009 03:55:46]

Red, red rubies

Ruby, the birthstone of July, can cost from $3 to $23,000 per carat more...

[Thu 22/01/2009 02:41:43]

Diamonds - the real thing?

New treatments are making it increasingly difficult to tell the difference between natural and treated diamonds. more...

[Thu 22/01/2009 11:11:51]

Pearls - natural, cultured and treated

The natural beauty of pearls is increasingly being enhanced by a variety of treatments. more...

[Tue 25/11/2008 10:56:25]

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