Article Search Results

Show Filters
Showing 39 results for "������������������������������2���"
Opticon treatment
Fracture Filling of Emeralds Opticon and Traditional "Oils"

The filling of surface-reaching breaks in emeralds is a relatively common practice, for which various kinds of oils and a natural resin have historically been used.

Read More

Summer 1993 G&G Lab Notes

This section, from the Summer 1993 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.

Read More

Abstracts; Summer 1991

From the Summer 1991 issue of Gems & Gemmology, a summary of important gemmology-related articles published in other journals.

Read More

Summer 1981 G&G Lab Notes

This section, from the Summer 1981 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.

Read More

Abstract Header from the 2009 issue of Gems & Gemology
Abstracts; Summer 2009

This article, from the Summer 2009 issue of Gems & Gemmology, is a compilation of abstracts of important gemmology-related articles published outside of Gems & Gemmology.

Read More

Summer 1992 G&G Lab Notes

This section, from the Summer 1992 issue of Gems & Gemmology, is a compilation of interesting finds from GIA's laboratories.

Read More

Summer 1988 G&G Lab Notes

This section, from the Summer 1988 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.

Read More

Summer 1989 G&G Lab Notes

This section, from the Summer 1989 issue of Gems & Gemmology, is a compilation of interesting finds from GIA's laboratories.

Read More

Emeralds and Green Beryls of Upper Egypt

More than 2,000 years ago, emerald deposits in upper Egypt were supplying gems throughout the Graeco-Roman Empire.

Read More

Summer 1997 G&G Lab Notes

This section, from the Summer 1997 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.

Read More