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About Gem Data
GEM DATA offers independent gemological appraisals, gem identification, jewelry and luxury watch valuations, and acquisition consulting from the historic Shreve Building, Union Square, San Francisco. Established 1981.
Its primary NAICS classification is 423940 (Jewelry, Watch, Precious Stone, and Precious Metal Merchant Wholesalers). Gem Data is one of 7,660,543 companies listed in California.
Business Contact Information
- Phone
- +1 (415) 9814367
- Website
- gem-data.com
- linkedin.com/company/gem-data
- Address
- 210 Post St, San Francisco, California, 94108, United States
Industry & Classification
NAICS Codes
- 42Wholesale Trade
- 4239Miscellaneous Durable Goods Merchant Wholesalers
- 423940Jewelry, Watch, Precious Stone, and Precious Metal Merchant Wholesalers
SIC Codes
- 50Wholesale Trade-durable Goods
- 509Miscellaneous Durable Goods
- 5094Jewelry, Watch, Precious Stone, and Precious Metal Merchant Wholesalers
Company Details
- Employees
- 17 (11-20)
- Annual Revenue
- $3.6M ($1M-$5M)
Gem Data: frequently asked questions
What does Gem Data do?
GEM DATA offers independent gemological appraisals, gem identification, jewelry and luxury watch valuations, and acquisition consulting from the historic Shreve Building, Union Square, San Francisco. Established 1981.
Where is Gem Data located?
Gem Data is headquartered at 210 Post St, San Francisco, California, 94108, United States.
How many employees does Gem Data have?
Gem Data has about 17 employees (the 11-20 range).
What is Gem Data's annual revenue?
Gem Data's annual revenue is estimated at $3.6M (the $1M-$5M range).
What industry is Gem Data in?
Gem Data's primary NAICS code is 423940 (Jewelry, Watch, Precious Stone, and Precious Metal Merchant Wholesalers).
How can I contact Gem Data?
Its website is gem-data.com and its phone number is +1 (415) 9814367.
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Manufacturing sales in California, 2026
In California, Factur's 2026 study counted 98 manufacturing quotes worth $14.7M and 18 purchase orders over 12 months: 18% of quotes became orders, against 21% nationally. See the California data.
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