Press Release

GCAL Launches Certified Diamond Exchange (CDE)

New York (October 28, 2007) - Gem Certification and Assurance Lab (GCAL) announces the launch of Certified Diamond Exchange (CDE), a free online diamond exchange where JBT-listed retailers, wholesalers and manufacturers can buy, sell and trade their inventory of GCAL certified diamonds.

Completely free to the user, CDE's aim is to provide an accessible online source of GCAL certified diamonds. Unlike any other online diamond exchange, CDE has a critical layer of protection because each diamond is backed by GCAL's Zero Tolerance 4Cs Consumer Guarantee. This guarantee assures buyers that every diamond listed on the site was independently graded and verified and is protected by a money-back guarantee.

CDE intends to be one of the most heavily marketed diamond trading sites and is backed by the resources of Collectors Universe, the parent company of GCAL and CDE. Inventory will be aggressively marketed directly to the best buyers in the marketplace through an advertising campaign in multiple trade publications, online announcements and repetitive direct mail to over 30,000 buyers, sellers and manufacturers in the diamond trade. Sellers can submit diamond inventory to GCAL for certification and then have the diamonds marketed through CDE, all for the price of the certificate with no other fees or commissions.

Logging on requires registration at, a quick and simple process. CDE is limited to members of the trade only and will not be available to the consumer.

"GCAL has always been at the forefront of utilizing new technologies to create the most consistent and accurate atmosphere in which the diamonds are certified," says Donald A. Palmieri, President of GCAL. "This focus on technology has enabled us to offer such exclusive features as Gemprint, direct assessment light performance, the Gemfacts interactive Digital Certificate, and many other value added benefits to our customers. CDE will be no different with regard to GCAL's focus on technology and value added services. We will be constantly looking for ways to improve the site, its efficiency, and the experience of both the buyer and seller."

About Gem Certification and Assurance Lab

Gem Certification & Assurance Lab (GCAL) is a subsidiary of Collectors Universe, Inc., a NASDAQ Global Markets traded company (CLCT NASDAQ listed). GCAL provides guaranteed diamond certification with bundled services including Gemprint and direct light performance analysis as well as SourceVeritas and Ideal Cut certificates ( GCAL is the Official Diamond Laboratory of the International Colored Gemstone Association for North America, the JCK Shows, Couture, and the JA Shows.

About Collectors Universe

Collectors Universe, Inc. is a leading provider of value added services to the high-value collectibles, diamond and gemstone markets. The Company authenticates and grades collectible coins, sports, cards, autographs, stamps, currency, diamonds and colored gemstones. The Company also compiles and publishes authoritative information about United States and world coins, collectible sports cards and sports memorabilia, collectible stamps, diamonds and gemstones. This information is accessible to collectors and dealers at the Company's Web site,, and is also published in print.

Don Palmieri