Archive for the ‘Gemstones’ Category

Best Jeweler, PE Reader’s Choice- Mardon Wins Again!

Saturday, November 6th, 2010

We'd like to thank all of you who voted Mardon the Best Jeweler in Riverside for the second year in a row! Your support and patronage makes our work most enjoyable and enriches our lives in many ways. Look for the Press Enterprise Reader's Choice magazine in the Thursday, November 11 issue. We like to […]

The Perils of Paraiba-Jewelers Tears #2

Thursday, September 23rd, 2010

This tale of woe illustrates some of the risks and challenges we jewelers face in our fascinating business. Last year, I had seen this lovely and large reddish purple tourmaline several times. Gem dealer Jack had tried mightily to tempt me with it, an unheated stone from the country of Mozambique in East Africa, an […]

The Rarified World of the Rarest of Gems

Thursday, September 16th, 2010

Our old friend and former colleague at GIA, Gary Roskin, has published an absolutely fascinating account of a major event at the pinnacle of the gem world. Under the auspices of the Smithsonian Institute, the most famous of all gems, the Hope Diamond, was brought together for the first time with the Wittelsbach Blue, now […]

Heat Treated Stone Helps Endangered Humans Survive

Friday, August 20th, 2010

The desire and ability to exploit our environment and to utilize and improve the natural materials we find is rooted in our deepest past, and is in fact, part of the reason we are here today. I was absolutely fascinated by an article in the August 2010 Scientific American, When the Sea Saved Humanity, that […]

Famous Annual Clearance Sale- 3 Days Left!

Wednesday, August 11th, 2010

Those of you who have contemplated, mulled, dawdled, or just plain procrastinated about buying something during our Annual Clearance Sale, be warned– The sale is over Saturday, August 14, 5:30 PM. Don’t miss your chance to buy our first line jewelry at bargain basement prices! Get your christmas shopping done in August and save bundles! […]

Sapphires Illustrate the Wonder of Gems and the Limits of Perception

Wednesday, July 14th, 2010

These two sapphires are both from the island of Sri Lanka, both are heat enhanced, both are from the same vendor, both weigh about the same. Here's another photograph, same stones, same photographer (myself), same camera, same photo stage, similar macro lens, slightly different lighting. Can you guess which one costs more?

A One-of-a-Kind Filigree Engagement Ring

Saturday, July 3rd, 2010

We completed a most beautiful engagement ring a while back but weren’t able to post this blog till now. It was one of the most challenging projects we’ve ever done! Our clients Megan and Mike, big fans of antique and period jewelry, fell in love with a 1920’s Art Deco platinum ring in our estate […]

Art Deco Jadeite Necklace- A Lesson in Appraising Jade

Tuesday, June 22nd, 2010

We’ve been working on an insurance appraisal for this wonderful platinum necklace with diamonds and jadeite from the 1920’s and realized the piece has a lot to teach about grading and valuing jade. Jade is not well understood by many folks. If I told you that jade can be one of the most expensive of […]

Father’s Day Gift Par Excellence- A Carved Fire Agate

Saturday, June 5th, 2010

A service we offer is finding rare gemstones. One of my “quests” at Tucson 2010 was for an unusual stone for a client who owns a stable of Tennessee Walking Horses. One of his horses is a World Grand Champion, so he was interested in a ring he could wear that would bring attention to […]

Gold in Quartz Man’s Ring

Thursday, May 27th, 2010

For a very special gift for Father’s Day or perhaps an anniversary, consider this striking one-of-a-kind man’s ring, set with a gorgeous gold in quartz gemstone from the Eldorado Mine in Gympie, Queensland, Australia.  You can easily see the dramatic eruption of pure gold in the white quartz matrix– simply stunning! I picked this gem […]

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