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Diamond Necklaces

Shop our curated selection of stunning diamond necklaces from the world's most renowned brands, including Tiffany & Co., Cartier and BVLGARI. All authenticated by our team of diamond jewelry experts and priced at up to 80% off retail.

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

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

New York City Secondhand Dealer License Number: 2079617-DCA

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.

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