The Polygon Trading Network, an online buying/selling service for the diamond trade, announced the latest bombshell in the EGL Diamond Grading scandal. They will no longer list diamonds with European Gemological Laboratory International (EGL) reports. This follows in the wake of the decision by another trading network, RapNet, to ban all EGL report for it’s […]
UPDATE June 6, 2014 – A happy ending to the story below– 7 months after returning the emerald to the seller, the couple received their money back. A retired couple purchased this 1.89 carat natural emerald last December in Cartagena, Columbia while on a cruise thru the Caribbean. The emerald shop they bought from had been touted […]
Just in time for Valentine’s day, Friday, February 14– fabulous new goodies we recently acquired from a large collection of fine jewelry! If you are looking for something really special for that special someone, this group of vintage jewels may offer the perfect choice– we’ll highlight just a few items from over one hundred new […]
As usual, our annual pilgrimage to the Tucson Gem Shows in early February was a fun mix of business and pleasure.
One of the missions Robert M. Shipley defined when he created the Gemological Institute of America was to rectify incorrect practices in the jewelry and gem business. One of the most common of these is the use of trade names and misnomers for gemstones.
Because of significant price increases for diamonds, colored gemstones, and precious metals over the past few years, we are advising many of our clients to update their jewelry appraisals and to increase their jewelry insurance to reflect current pricing.
It’s important to remember that jewelry style tips for teenagers differ from those meant for an adult. As a general jewelry buying guide, it’s a good idea to wear styles designed for the wearer’s age and according to the season.
Mardon is proud to introduce the FireMark Princess Diamond to our community. We know this very special diamond will quickly make fans because of it’s outstanding beauty and value. A recently granted U.S. Patent protects the unique features that separate FireMark from all other Princess cuts. A true gemological breakthrough, FireMark’s innovative cutting results in unprecedented […]
Last year, after Elizabeth Taylor’s passing, the gem world was all abuzz with the upcoming auction of her famous jewelry collection. Noted auction house, Christie’s, New York would hold an evening sale, December 13, 2011. When all the bids were in, the sale fetched record amounts for most of her pieces, including almost $12,000,000 for […]
We want to thank our loyal friends and fans who once again voted Mardon the Best Jeweler in Riverside for the third year in a row! Read about it in the annual Press Enterprise Reader’s Choice supplement in today’s paper. We truly appreciate your support!
