Loose Diamonds
Natural diamonds across shapes, sizes and qualities, including certified stones and matched pairs.
47th Street · New York Diamond District
Diamonds, fine jewelry & watches.
Wholesale diamonds and fine jewelry. We buy and sell vintage jewelry and watches, and we buy diamonds.
From a single stone to a complete collection, Eighteen Diamonds brings diamonds, fine jewelry, vintage pieces and watches together under one roof on 47th Street.
What we do
Buy, sell and source.
Fine Jewelry
Engagement rings, wedding bands, earrings, pendants and bracelets in gold and platinum.
Vintage & Estate Jewelry
We buy and sell vintage and estate pieces, from signed designs to period classics.
Watches
We buy and sell luxury and vintage timepieces.
We Buy Diamonds
Diamonds of every size, loose or mounted, evaluated with care and paid promptly.
Special Orders
Sourcing for specific stones and custom pieces made to your requirements.
We buy
Diamonds, vintage jewelry and watches.
Bring your diamonds, vintage and estate jewelry or watches to our office on 47th Street. We evaluate every piece in person and make a fair offer.
- 01Diamonds, loose or mounted
- 02Vintage and estate jewelry
- 03Luxury and vintage watches