Recommended Books For Gemstones

[pwsg07]

I am looking books that explain how to evaluate the beauty of the gemstones. For example, Secrets fo the Gem Trade by Richard Wise. Thank you in advance.

 

[mochiko42]

Here's a good selection, try Ruby and Sapphire by Richard W. Hughes.
http://www.lotusgemology.com/index.php/library/books

 

[valeria101]

.

R. Hughes has some rather good talks scattered on the www. I must have linked one on the 'Gray is Beautiful' thread here (gottago else would have linked).