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Designer Gemstone Jewelry

The finest gems from the finest jewelers, shop our selection of designer gemstone jewelry, including Tiffany & Co., Chaumet, Cartier, and BVLGARI. All of our pre-owned gemstone jewelry pieces are authenticated and certified by our team of luxury jewelry experts.

Sustainable Luxury

For every purchase on myGemma, 1 tree is planted and 10 bottles of ocean plastic are removed.

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My Account Loyalty Program Trade In Program Refer A Friend Gift Cards Designer Brands
Why Sell To myGemma Get A Price Quote How It Works Reviews Selling FAQs Trade-In Program Consignment Sell Bags Sell Jewelry Sell Watches Sell Diamond Jewelry Sell Diamonds
About Us Our Offices The Luxury Lowdown Rejuvenate Sustainability Careers Affiliate Program White Glove Authentication New York Showroom
Terms & Conditions Privacy Policy Shipping & Returns Contact Diamond Weight Calculator

Social media

General

contact@mygemma.com

+1 646 569 3655

Selling

selling@mygemma.com

+1 646 758 0270

apple app store

google app store

myGemma is not affiliated with any of the brands available for purchase.
We do not sell your personal information.

We accept all major cards as well as PayPal and credit options through Affirm

Disclosure: 0% APR financing is available for those who qualify. Rates range from 0-36% APR. Payment options through Affirm are subject to an eligibility check and are provided by these lending partners: affirm.com/lenders. Options depend on your purchase amount, and a down payment may be required. CA residents: Loans by Affirm Loan Services, LLC are made or arranged pursuant to a California Finance Lenders Law license. For licenses and disclosures, see affirm.com/licenses.