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Jewelry, Gems, & Minerals/Experts

ExpertAverage RatingsExpertise

Lisa Brooks-Pike

U.S.
Available
  • Knowledgeability 9.77
  • Clarity of Response 9.88
  • Politeness 9.96
  • Response Time(hr) 51.1
  •  --Last 90 Days(hr) 79.0
  • Total Questions 113
 I can answer questions pertaining to gemstones, gemology, insurance appraisals and consumer protection issues. I will do my best to answer any question you have, if I don't know the answer, I will do my best to share resources where you might find the correct answer.

Jonathon Ohayon

U.S.
Available
  • Knowledgeability 9.50
  • Clarity of Response 9.40
  • Politeness 10.00
  • Response Time(hr) 36.3
  •  --Last 90 Days(hr) 30.5
  • Total Questions 39
 Any diamond, jewelry or engagement ring related questions. I am a Graduate Gemologist and have extensive experience in the field of Gemology including diamonds, gemstones, and precious metals.

Peter Lumetta

Available
  • Knowledgeability 9.92
  • Clarity of Response 9.91
  • Politeness 10.00
  • Response Time(hr) 7.9
  •  --Last 90 Days(hr) 8.1
  • Total Questions 1043
 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
  • Knowledgeability 9.73
  • Clarity of Response 9.87
  • Politeness 9.85
  • Response Time(hr) 30.0
  •  --Last 90 Days(hr) 35.9
  • Total Questions 751
 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.

Sambhav Karnawat

India
Available
  • Knowledgeability 10.00
  • Clarity of Response 10.00
  • Politeness 10.00
  • Response Time(hr) 59.6
  •  --Last 90 Days(hr) 133.0
  • Total Questions 58
 I have interest & expertise in Ruby, from Ruby roughs to polished Rubies to Ruby Jewelry. Anything about Rubies, I'd love to talk!

Melinda Nolan

U.S.
Available
  • Knowledgeability 9.72
  • Clarity of Response 9.92
  • Politeness 10.00
  • Response Time(hr) 35.6
  •  --Last 90 Days(hr) 5.1
  • Total Questions 105
 Questions about jewelry manufacturing, gemstones, diamonds, the precious metals, industry trends, purchasing, quality, care and maintenance, appraisals, insurance, stone cutting, jewelry repair, etc. I am NOT equipped to answer questions about age or value of a piece without seeing it in person, and even then, I am not an expert in antiques. Nor am I an expert in stamps or marks that are inside the jewelry. There are hundreds of thousands of manufacturer's out there and then you factor in the number of years a piece of jewelry can circulate, it becomes an enormous amount of possibilities. I am really not the right person to ask about such markings.

Thomas

Available
  • Knowledgeability 9.96
  • Clarity of Response 9.97
  • Politeness 10.0
  • Response Time(hr) 11.7
  •  --Last 90 Days(hr) 12.6
  • Total Questions 2976
 Have a question about jewelry repair or working with precious metal jewelry and gemstones? For many years up to December 31, 2010, I was a working professional bench jeweler, involved everyday with setting stones in mountings, designing and making jewelry, repairing and limited custom manufacture. 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.

Uwe Richard Kackstaetter, Ph.D. (Dr.K)

U.S.
Available
  • Knowledgeability 10.00
  • Clarity of Response 10.00
  • Politeness 10.00
  • Response Time(hr) 66.0
  •  --Last 90 Days(hr) 66.0
  • Total Questions 8
 Questions concerning Minerals, Mineralogy, such as Mineral identification and anything that has to do with Geology. Our University Department offers FREE mineral identification for lay people as part of our training for new Geoscientists. Please visit http://college.earthscienceeducation.net/MINPET/MINID.pdf for details.

Bill and Sally Jarrett

U.S.
Unavailable
  • Knowledgeability 9.79
  • Clarity of Response 9.91
  • Politeness 10.0
  • Response Time(hr) 58.6
  •  --Last 90 Days(hr) 122.2
  • Total Questions 1583
 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.

Recent Answers

2012-02-07 Platinum Family Alloys:

Jeremy,     The direct answer to your question is “no”.  Colored platinum alloys including pink variations are not on the market and if any are being experimentally worked in a proprietary way the market

2012-02-06 About Gemstones:

Naomi,    That's a fun and interesting topic on which to write a research paper.  I hope you enjoy researching the topic and what you learn from it.  I'm afraid that most of your questions would require

2012-02-05 discolored diamonds:

Hi Tina,    More than likely when the ring was sized those stones got to hot and discolored, this happens frequently in sizing a ring with stones. I would recommend that you return to the jeweler that

2012-02-04 Determining if jeweler is reputable:

Dear Holly,    Quite honestly, trying to advise on how to find a reputable jeweler is a difficult task.  Most of what defines the reputable jeweler is relatively obvious but is not always that easy to

2012-02-04 BIG diamond ring:

Hi Anna, from what you have mentions I would assume that your ring is made out of silver, since the stamp 925 is used to indicate the purity of silver (92.5%). RSC can possibly mean RS. Covenant, a jewelry

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