Antique Buttercup Old Mine Cut Diamond Ring

What you're actually buying

This isn't a new ring styled to look old. It's the real thing: an antique piece sourced and authenticated by Louis Martin Jewelers, a New York institution since 1978, and brought to market through Aurate's vintage curation program alongside their expert, Louis Martin. The old mine cut diamond at its center predates the modern brilliant — it has a chunkier, more cushion-like silhouette, a smaller table, and a larger culet (the flat bottom facet), which gives it that soft, candlelit glow that modern cuts can't replicate. Under natural light, it's romantic. Under a chandelier, it's theatrical.

The buttercup setting — named for its petal-like prongs — is a classic antique mounting style that cradles the stone and tilts it slightly upward, maximizing light return and showing off the cut's character. In 14k yellow gold, the warmth is considerable. This is not a neutral, minimal ring. It has a point of view.

The condition question

Because this is a preowned piece, Aurate is upfront: it may show signs of wear and have imperfections. We think that's a feature, not a defect. The slight patina, the tiny scratches on the shank — these are the fingerprints of a life lived. What you're buying is history made wearable. That said, you should go in with clear eyes: you will not receive a pristine, flawless piece. Inspect the detail images carefully before purchasing.

Sizing matters here

This ring is a size 4, which is on the smaller end — roughly suited to a petite finger. Vintage rings can sometimes be resized, but the feasibility depends on the setting style and the metal's condition. We'd recommend consulting a local jeweler before purchase if your size is different, and keep in mind that because this is final sale, there's no exchange option if it doesn't fit.

The sustainability argument

Buying vintage is genuinely one of the better choices you can make in jewelry. No new mining, no new casting, no new energy expenditure — just a beautiful object that already exists, finding its next owner. At $1,289, you're also getting a piece with provenance and character that a new ring at this price point can't offer. The old mine cut alone, in this setting, would cost meaningfully more to recreate today.

The warranty situation

This is the one place to pump the brakes. Aurate's lifetime warranty — a real selling point of their new jewelry — does not apply here. This piece is final sale and falls under Louis Martin's service network for any warranty needs. That's a different experience than Aurate's in-house support, and worth factoring in if aftercare matters to you. It doesn't disqualify the ring; it just means you're buying it with different expectations.