Old Mine Cut Diamonds

What Is an Old Mine Cut Diamond?

An old mine cut diamond is a hand-cut antique diamond shaped like a soft square, or "cushion," with rounded corners, a tall crown, a small table, and a large open culet at the bottom. Cut by candlelight before electricity, its chunky facets throw broad, warm flashes of light — a gentle "hall-of-mirrors" glow rather than the sharp, non-stop sparkle of a modern brilliant. Because every stone was shaped by hand, no two are exactly alike.

For the full history, facet breakdown, and how it compares to old European and modern cuts, read our complete guide to what an old mine cut diamond is.

Why Choose an Old Mine Cut Diamond?

Old mine cut diamonds appeal to anyone who wants romance, history, and true individuality in a single stone.

One-of-a-kind character

Every old mine cut diamond was cut by hand with period tools, so each carries subtle irregularities and a personality no mass-produced modern stone can replicate.

A warm, candlelit glow

Rather than bright, uniform sparkle, old mine cut diamonds give off a soft, moody shimmer with broad flashes of fire — beautiful in low, romantic lighting.

Looks larger than its carat weight

A deep pavilion and wide cushion spread give old mine cut diamonds a bold face-up presence, so they often wear bigger than the carat weight suggests.

Heirloom appeal and rarity

As genuine antiques, well-preserved old mine cut diamonds are increasingly scarce and can command a premium over comparable modern stones — a piece of history meant to be passed down.

Old Mine Cut Engagement Rings & Vintage Settings

Old mine cut diamonds are a naturally romantic choice for an engagement ring, and they shine brightest in settings that echo their era — think delicate milgrain, bezel and half-bezel frames, three-stone silhouettes, and other vintage-inspired designs. Browse our vintage-style diamond rings for settings that complement an antique cut, or work with our team to build a custom ring around your old mine cut stone. (It's the same family of antique cushion that made headlines as Taylor Swift's 2025 engagement ring.)

FAQ

Are old mine cut diamonds good for engagement rings?

Yes. Old mine cut diamonds make a romantic, distinctive engagement ring for anyone who values individuality and vintage character. Just set expectations on the look: you'll get a soft, warm glow and broad flashes of light rather than the sharp, high-contrast sparkle of a modern brilliant cut.

Do old mine cut diamonds sparkle?

Old mine cut diamonds sparkle, but differently from modern diamonds. Their large, hand-cut facets were designed for candlelight, so they produce a gentle "hall-of-mirrors" glow with broad, chunky flashes of fire instead of the rapid, pinpoint brilliance of today's precision-cut stones.

Are old mine cut diamonds more expensive?

An old mine cut diamond isn't inherently worth more than a modern diamond, but genuine, well-preserved antiques are rare, and desirable examples can carry a premium of roughly 15–25% over a comparable modern stone. Condition, size, and character all influence price.

How is an old mine cut different from a modern cushion cut?

Both share a soft, cushion-like outline, but an old mine cut is hand-cut with a taller crown, smaller table, larger culet, and slightly irregular facets — the antique forerunner of the cushion. Modern cushion cuts are machine-precise for maximum, uniform brilliance.

Can I set an old mine cut diamond in a custom ring?

Yes. Our design team can build a custom setting around an old mine cut diamond — pairing its antique character with vintage-inspired or modern details to suit your style. Reach out and we'll guide you through diamond selection, setting design, and every step to the finished ring.