Chelsea and Synthetic Emerald Filters Made Easy: The "RIGHT-WAY" Guide to Using Gem Identification Tools (The Antoinette Matlins "RIGHT-WAY" Series to Using Gem Identification Tools) Paperback – June 17, 2014

Good quality and quick shipment

Having these books out in the field mak research and identifying stones much easier. I highly recommend taking these little guides out in the field than the larger book on gem identification.

Goof quality. A must have book for gemology.

I have used the Chelsea filter before but she explains the little instructions that make the accuracy stick❗ Correct lighting, correct positioning to get the accurate reading people are respected for. Builds business confidence when your correct.

Excellent book a must have for gem identification in my opinion the way its written makes it so easy to understand the charts are invaluable a must have and I have now purchased all of her guidebooks

Good info

Very helpful and nice hand book