Lab Notes Gems & Gemology, Fall 1992, Volume 28, No. 3

Fall 1992 G&G Lab Notes

Fracture Filling in Diamond
Damage to Fracture-Filled Diamonds: In Cutting and Cleaning
Unusual Features in Diamond
Repaired Jadeite
Cat's-Eye Opal from Brazil
Hollow Pearls
Hollow Pearl in an "Antique" Pendant
Update on Treated Black Mabe Pearls
Dyed Sapphire as a Ruby Imitation
Large Cat's-Eye Zircon
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