Jewelry & Gems at Auction by Antoinette L., Pg Matlins, Jill Newman (2002, Paperback)

There are more in-depth books on buying and selling at auctions and online auctions that readers will want to consult. This briefs you on gemstones at auction. The publisher, Gemstone Press, has comprehensive guides on diamonds, pearls, etc. that are more in-depth as well. Convenient to have it all in one book, but keep in mind these limitations.
Excellent color photo section, helpful drawings, great charts. Probably a good starting title for this area, but I'd want to read more books before venturing into buying and selling gems at auction.

Antoinette Marlins has many other gemstone guides to her name and is an expect on gem identification and sales, making Jewelry & Gems At Auction: The Definitive Guide To Buying & Selling At The Auction House & On Internet Auction Sites a 'must' for any serious collector. From distinguishing auction buying techniques from other types of gem purchasing to bidding on different types of gems, understanding jewelry periods and designs, and avoiding common auction pitfalls, Jewelry & Gems At Auction is simply packed with valuable tips.