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Jewelry, Gems, & Minerals/Experts

Expert	Average Ratings	Expertise
Brett Krauskopf U.S. Available View Profile Ask A Question	Knowledgeability 10.0 Clarity of Response 10.0 Timeliness 10.0 Politeness 10.0 Total Questions 5	I am able to provide complete information about the value and characteristics of large diamonds. This would include explaining the differences in certification reports and explaining what all the details of a certification mean and how these details affect the value of a diamond.
Steven D.Covey Available View Profile Ask A Question View Past Answers	Knowledgeability 9.85 Clarity of Response 9.93 Timeliness 9.96 Politeness 10.0 Total Questions 561	I can answer questions related to colored stones. I am a professional gemstone cutter/lapidary for bench jewelers since 1978. I repair/re-polish all colored stones. I also cut from rough. Create custom cuts, match stones, inlay lapis, onyx etc.
Peter Lumetta Available View Profile Ask A Question View Past Answers	Knowledgeability 9.94 Clarity of Response 9.91 Timeliness 10.0 Politeness 10.0 Total Questions 680	Diamonds and colored stones are my expertise. Some experience in jewelry manufacturing for QVC and HSN. Cutting, marketing and selling of all precious and semi-precious gemstones.
Rolfe Foxwell U.S. Available View Profile Ask A Question View Past Answers	Knowledgeability 9.75 Clarity of Response 9.88 Timeliness 9.79 Politeness 9.92 Total Questions 521	I will answer any questions regarding semi-precious stones or precious stones. I will answer questions regarding mounting both semi-precious and precious stones. I can also answer most questions regarding small manufacturing. I can not answer questions regarding casting or fine jewelry.
Heather U.S. Available View Profile Ask A Question View Past Answers	Knowledgeability 9.89 Clarity of Response 9.67 Timeliness 10.0 Politeness 10.0 Total Questions 549	I'm here to help you find the perfect stone for any purpose! Name any color and I will list gems for you. I love introducing people to new and unexpected gemstones. I answer questions about the gemstones themselves only, NO JEWELRY OR PRECIOUS METAL/ MAKERS MARKS questions, if it deals with settings, bands, jeweler/maker marks, silver, gold, or platinum, I WILL NOT respond, I simply don't know anything about that. I also CAN'T value rough stones or appraise anything for you, and I can not help you tell if your jewelry is real or fake, so please don't ask.
Bill and Sally Jarrett U.S. Available View Profile Ask A Question View Past Answers	Knowledgeability 9.78 Clarity of Response 9.89 Timeliness 9.89 Politeness 10.0 Total Questions 1092	We are collectors, hobbyists and dealers in memorabilia and antiques - especially antique vintage and costume jewelry items. For 10 years we owned an antique shop here in Central Florida but retired and reopened a site on the internet that specializes mostly in antique jewelry and accessories such as perfume bottles, etc. Bill is informed on general antiques specializing in china and silver or sterling tablewares while Sally tends to jewelry and paper/advertising ephemera. We receive a lot of general questions from our site and would be glad to try and answer or give direction not considered for official appraisal purposes, i.e. estate or insurance.
Rod Keady Available View Profile Ask A Question View Past Answers	Knowledgeability 9.88 Clarity of Response 9.94 Timeliness 10.0 Politeness 10.0 Total Questions 295	all info pertaining to australian opals and opal fields is ok. online valuations is difficult but not entirely impossible. Photographs of stones should clearly show weight in carats and scale in mm. naturally photographs of opals are the hardest thing to take as a slight shift in direction displays a new colour or plane
Thomas Available View Profile Ask A Question View Past Answers	Knowledgeability 9.97 Clarity of Response 9.98 Timeliness 9.98 Politeness 10.0 Total Questions 2322	Have a question about jewelry repair or working with precious metal jewelry and gemstones? I am a working professional bench jeweler, involved everyday with setting stones in mountings, designing and making jewelry, repairing and limited custom manufacture. Over 30 years experience. If you work with jewelry as a hobby or as a profession, I might be able to help. I deal with the retail business, not mass production. Ask privately if you wish. See the box for that: It keeps your question between us. Please DO NOT ask MAKER'S MARKS, but metal quality marks are fine to ask. Please DO NOT ask diamond prices. See a gemologist for that.

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Recent Answers

2009-11-19 Diamond vs Cubic Zirconia:

HI JEFF, CZ DOES NOT FLOAT IN WATER. DIAMOND HAS A AFFINITY FOR OIL OR GREASE AND WILL GET A DULL LOOK TO IT IF NOT CLEANED REGULARLY. ALL THE OTHER TESTS YOU MENTION THE FOG TEST, THE LIGHT TEST, SCRATCH

2009-11-19 Gold filled quality marking:

Michael, metal quality marks vary somewhat from country to country and I am not an expert on markings for other countries. The precious metal markings for sterling, gold and platinum alloys are fairly

2009-11-18 Dress studs marking:

Dear Jan, Thank you for this question. Unfortunately, the answer will be not directly to the meaning since the mark SIL is not a recognized mark for metal quality and if a maker's mark, that is a

2009-11-18 Gold Bracelet:

Thank you for your inquiry. By your description, your item was probably made in Birmingham, England (anchor mark). The 375 means it is 9ct gold and the S&P would be the manufacturers name. The letter G

2009-11-16 gold enquiry:

HI CARLOS, IF IT IS TO GOOD TO BE TRUE THEN IT PROBABLY IS. A 14K STAMP CAN BE HAD FROM ANY JEWELRY SUPPLY HOUSE SO THE ONLY WAY TO REALLY TELL IS TO HAVE THE GOLD TESTED. GOLD IS AT AN ALL TIME HIGH