Hi jennifer, I bought my “Standered Catalog of gem values” book
just last month from Amazon.com , I have read cover to cover and
its a very good book (although there are some mistakes I hope to
point out to the authores When I get to U.S)
It gives U.S Retail prices of Rough as well as Cut Stones , the
reader must have a idea of color and terms used to define color
or will find one self lost.
Publisher - Geoscience press Tucson AZ by - Anna Miller and john