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Services Since 1980, Guild Laboratories, in Los Angeles, CA has been the most relied upon source for securing expert gemstone grading, gem identification and independent appraisal and valuation for diamonds, gemstones, jewelry and currency. Guild Laboratories president Charles Carmona, GG ASA has built this reputation by delivering fair and impartial valuation reports and consultation backed by decades of research and appraisal experience. This thoroughly comprehensive manual does the difficult task of estimating carat weigh... read more
550 S Hill St #1188, Ste 1188, Los Angeles, CA, 90013, United States
Get directionsWeekday | Schedule | Status |
---|---|---|
Mon | 9:00 a.m. to 6:00 p.m. | |
Tue | 9:00 a.m. to 6:00 p.m. | |
Wed | 9:00 a.m. to 6:00 p.m. | |
Thu | 9:00 a.m. to 6:00 p.m. | |
Fri | 9:00 a.m. to 6:00 p.m. | |
Sat | Closed | |
Sun | Closed |
If you need a gem certification with GIA standard go to Charles , he is the best .
Charles is a professional and has been doing this for 35 plus years.
Expert Lab. Top credentials. Impartial evaluations for gems in the Jewelry District.
Same day appraisal. Very knowledgeable, explained all the steps as we watched him work. Excellent service, well worth the price.
Guild Laboratories has a 5 star rating with 7 reviews.
Guild Laboratories is open now. It will close at 6:00 p.m.
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