The Gem Drop
A monthly release of stunning jewels through Sotheby's Sealed.

Diamonds are forever – but a setting is not.

Unmarked gemstones are among the biggest trends with jewelry collectors today. Often sold loose or simply set, these stones are endlessly customizable and can easily be reset when fashions change. Loose stones have even captured the attention of a new generation of jewelry buyers. Plus, because you’re buying the rock and not the brand name, unsigned gems offer tremendous value.

That’s why Sotheby’s is bringing you The Gem Drop, a monthly release of stunning jewels – featuring brilliant white diamonds, vibrant colored diamonds and rare gemstones – all priced between $20,000-300,000.

Upcoming Auctions

Past Auctions

Stories & Videos

Sell with Sotheby's

Sell with Sotheby's

Curious to know if your item is suitable for one of our upcoming sales?

Provide information and share images to request an online estimate now.

Start Selling

Stay informed with Sotheby’s top stories, videos, events & news.

Receive the best from Sotheby’s delivered to your inbox.

By subscribing you are agreeing to Sotheby’s Privacy Policy. You can unsubscribe from Sotheby’s emails at any time by clicking the “Manage your Subscriptions” link in any of your emails.

(C) 2025 Sotheby's
All alcoholic beverage sales in New York are made solely by Sotheby's Wine (NEW L1046028)