Jewelry and Gems--The Buying Guide, 8th EditionAntoinette Matlins, Antonio C. Bonanno · First published 2016Open the Tome
Manual De Identificación De GemasANTOINETTE MATLINS, ANTONIO C. BONANNO, MANUEL PIJOAN ROTGÉ · First published 2012Open the Tome
Gem Identification Made Easy A Handson Guide To More Confident Buying SellingAntonio C. Bonanno · First published 2008Open the Tome
Gem identification made easyAntoinette L . Matlins, Antonio C. Bonanno · First published 1989 · Latest edition 2003Open the Tome
