Colored gemstonesAntoinette Leonard Matlins · First published 2005 · Latest edition 2016Open the Tome
Gem identification made easyAntoinette Leonard Matlins, Antoinette L. Matlins, Antonio C. Bonanno · First published 1989Open the Tome
Jewelry & gems, the buying guideAntoinette Leonard Matlins · First published 1996 · Latest edition 2009Open the Tome