Erstwhile

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Erstwhile Curators for Those Seeking the Extraordinary Renowned for antique and vintage engagement rings from the 1880s to the 1940s.

In 2015, Erstwhile launched a collection of engagement rings made with estate diamonds and reclaimed metals, called by Erstwhile.

10/08/2026

Share this with someone who loves old sh*t as much as you do 💌

10/05/2026

Remarkably well preserved 130 year old Victorian era engagement ring. Showcasing a 1.55 carat chunky old European cut diamond held within a striking belcher and engraved 18k yellow gold setting. Dream antique ring. Circa 1890.

Comment “link” and we’ll DM you a direct link to this ring online.

We offer complimentary insured shipping and 14 day returns. Visit us in NYC or virtually by appointment.

10/02/2026

At D Ô E N in the Brentwood Country Mart all weekend, stop by, say hi and try on something extraordinary. If you’re not local in LA you can always visit us in NYC or virtually by appointment. We offer complimentary insured shipping and 14 day returns.

09/30/2026

Newly arrived dreamy Art Deco vintage engagement ring showcasing a 2.97 carat old mine cushion bezel set with fine millegrain and a beautiful openwork gallery.

Comment “link” and we’ll DM you a direct link to this ring.

Book an appointment in our NYC showroom or in Los Angeles at DÔEN in the Brentwood Country Mart Oct 2–4 or virtually, appointment link in bio.

09/25/2026

19th Century Victorian antique engagement ring centering a remarkable elongated 5.03 carat old mine cushion cut diamond with warm N color and VS1 clarity set within a beautifully preserved 14k yellow gold bezel setting. Circa 1880

Comment “link” and we’ll DM you the direct link to this ring.

Book an appointment in our NYC showroom or in Los Angeles at DÔEN in the Brentwood Country Mart Oct 2–4 or virtually, appointment link in bio.

09/21/2026

We’re coming back to Los Angeles ✨

Join us D Ô E N October 2–4 Brentwood Country Mart to discover one-of-a-kind antique engagement rings, rare vintage jewels, By Erstwhile pieces, and a few unreleased treasures.

We were lucky enough to shoot our collection in DÔEN’s beautiful new collaboration with Trove inspired by antique jewelry boxes, these handcrafted lacquer keepsakes will be showcasing our jewels at the trunk show.

Comment “link” and we’ll DM you a direct link to book an appointment.

09/16/2026

Sneak peek of new vintage coming soon 💞 for first dibs book an appointment in NYC, LA or virtually. Comment “link” and we’ll dm you a link to book.

09/13/2026

Candlelight captured in a diamond.

This extraordinary 5.88ct old mine cushion is graded W–X, giving it a soft, buttery ch*****ne glow that feels almost made for an antique diamond. Warmth behaves differently in these old hand cut stones. Unlike the more uniform color you can sometimes see in warmer modern brilliant cuts, an old mine’s broad, chunky facets break it up, flashing cream, gold, white and rainbow fire as the diamond moves. The result is less “yellow” and more candlelit: warm, luminous and full of depth. Cut by hand well over a century ago, its elongated proportions and remarkable scale make it exceptionally rare. We set it in an 18k yellow gold bezel, letting that incredible color and old mine faceting do all the talking. Because with antique diamonds, whiter isn’t always more beautiful. Sometimes the warmth is the magic.

Comment “link” and we’ll DM you the direct link to this ring.

Book an appointment in our NYC showroom in person or virtually, appointment link in bio.

09/12/2026

Collet set with 1.00 carats total of antique old European cut diamonds in 18k yellow gold. Made in very limited quantities as acquiring matching antique stones has become harder. This is currently our last of the batch. Online now. Comment “link” and we’ll DM you a direct link.

Address

589 5th Avenue
New York, NY
10017

Opening Hours

Monday 10am - 5pm
Tuesday 10am - 5pm
Wednesday 10am - 5pm
Thursday 10am - 5pm
Friday 10am - 5pm
Saturday 10am - 5pm

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