Lab NotesGems & Gemology, Winter 1988, Vol. 24, No. 4

Winter 1988 G&G; Lab Notes

Imitation Dyed Black Chalcedony Beads Imitation Crystal Diamond Diamond with Radiation Stains Mysteriously Damaged Diamond Dyed Grossularite Garnet Walrus Ivory Irradiated Cultured Pearls Pear-Shaped Saltwater Pearl Large Flux-Grown Synthetic Ruby Synthetic Spinel Represented as Topaz Synthetics and "Modern" Gems in Period Jewelry To view the full section, download the PDF above.

You Might Also Like

YMAL AJP
Discover GIA's New Campus in London
Learn About NextGem
GIA NextGem™ Diamond Training for Retail
Explore GIA Laboratory Promotional Offers
Explore GIA Laboratory Promotional Offers
Shop the GIA Store
Shop the GIA Store