Chelsea and Synthetic Emerald Filters Made EasyAntoinette Matlins · First published 2014Open the Tome
Jewelry & gems, the buying guideAntoinette Leonard Matlins · First published 1996 · Latest edition 2009Open the Tome
Gem identification made easyAntoinette L . Matlins, Antonio C. Bonanno · First published 1989 · Latest edition 2003Open the Tome