Gems and GemologyGems and Gemology
Home
Monday, January 5, 2009Printer-Friendly Page
Service Center
Search
My GIA
Back Issue

Winter 1991, Volume 27, Issue 4

Click to Print
Gem Trade Lab Notes


A Large CHLORITE Carving

Treated-Color DIAMOND with Natural Radiation Stains

Massive GROSSULARITE GARNET Carving

Heat-Damaged JADEITE

Banded LAPIS LAZULI

Unusually Large Worked and Plugged Cultured PEARL

QUARTZITE and DOLOMITE Bead

Coated SAPPHIRE

Twinned SYNTHETIC SAPPHIRES

Appears on pages 248-253

Back to Table of Contents

Click Here to Buy This Issue or to Subscribe to Gems & Gemology

Home | About GIA | Ethics Helpline | Education | Laboratory | GIA Reports | Research | Instruments & Books | Alumni Association
Gems & Gemology | Employment at GIA | Careers Available | Newsroom | Publications | Library | Events & Trade Shows | Support GIA | GIA History | How to Buy a Diamond
Contact | Search | Site Map | Help
This page was last updated 08/15/05 09:08 AM
Use of this site signifies your agreement to its terms of use.
©2002 - 2009 Gemological Institute of America Inc.
GIA is a nonprofit 501(c)(3) organization.
All rights reserved.
World Headquarters and Robert Mouawad Campus
5345 Armada Drive, Carlsbad, California 92008
Tel: 760-603-4000