Before 1919, there was no "perfect" diamond. Every stone was cut by hand, by eye, to save as much of the rough as possible and to glow in candlelight. Those old cuts (the old mine cut, the Old European cut and the rose cut) are having a real moment in engagement rings, and once you see one move in the hand it is easy to understand why. This guide explains what each cut is, how to recognise it, and why it makes such a beautiful centre stone, using two natural diamonds from our own vault.
Left: a natural 1.75 ct yellow diamond in an antique cushion old mine cut, more than 100 years old. Right: a natural 0.97 ct pear-shaped rose cut diamond. Both filmed in our studio.
What is an "old cut" diamond?
"Old cut" is the umbrella term for diamonds cut before the modern round brilliant was standardised in the early 20th century. Cutters of the 1700s and 1800s worked without computers or precise measuring tools, polishing each facet by eye. The goal was different too: keep as much weight as possible, and make the stone come alive in the soft, flickering light of candles and gas lamps.
The three old cuts you will meet most often:
- Old mine cut: a softly squared cushion with a high crown, small table and an open culet. Roughly 1700s to the 1890s.
- Old European cut: the round successor to the old mine cut, with the same high crown and open culet. Roughly 1870s to the 1930s.
- Rose cut: a flat base with a dome of triangular facets rising to a point. Used from the 1500s onward, and loved again today.
The old mine cut
The old mine cut takes its name from the "old mines" of India and Brazil, the main sources of diamonds before the South African discoveries of the 1870s. Its features are easy to learn:
- Cushion outline. A square or slightly rectangular shape with gently rounded corners, often a little irregular because it followed the rough.
- High crown, small table. The top of the stone rises steeply to a small flat facet, which gives those big, chunky flashes.
- Open culet. A small flat facet at the very bottom. Look straight down through the table and you will often see it as a tiny circle in the centre.
- Depth. Old mine cuts are usually deeper than modern stones, so they carry their weight below the girdle.
Our 1.75 ct antique yellow old mine cut: over 100 years old
The stone in our first video is a 1.75 ct natural yellow diamond in an antique cushion old mine cut, cut more than a century ago. It shows everything that makes the style special: a hand-shaped cushion outline, a tall crown, and broad facets that throw slow, buttery flashes of yellow and white as it turns. A modern cutter would almost certainly recut a stone like this for a brighter, more uniform look. We are glad nobody did.
Natural yellow diamond, 1.75 ct, antique cushion old mine cut, over 100 years old. Bottom right: the side view shows the high crown and deep pavilion typical of the period.
The rose cut
The rose cut is one of the oldest diamond cuts still in use. Instead of a pointed underside, it has a flat base, and the top rises in a dome of triangular facets, like the petals of a closed rosebud. Because there is no deep pavilion, a rose cut is shallow and wide: it shows a large face for its weight and sits close to the finger.
The light is different, too. A rose cut does not "fire" like a brilliant. It glows, with soft, mirror-like flashes moving across its facets and a clear, glassy look, almost like a window into the stone. Our natural pear rose cut weighs 0.97 ct, just under a carat, and its wide, shallow shape makes it look generous on the hand. Pear and oval rose cuts like this one were favourites in Georgian and Victorian jewellery, and they have become one of the most requested shapes in modern alternative engagement rings.
Natural pear-shaped rose cut diamond, 0.97 ct. Bottom right: seen from the side, the flat base and slim profile that let a rose cut sit so low in a ring.
Why old cuts make beautiful engagement rings
- They look like no one else's ring. Every old mine cut and every hand-finished rose cut is a little different. Yours will be one of a kind.
- Romantic, candle-lit light. Big, slow flashes instead of glitter. They are at their best at dinner, by a window, or in warm evening light.
- History you can wear. An antique stone like our 1.75 ct yellow old mine cut has already lasted more than a century. It carries a story, and it was cut long before you were born.
- Nothing new is mined. An antique diamond is already in circulation, which many couples find meaningful.
- Rose cuts are made for everyday wear. A low, flat profile means fewer snags on sweaters and gloves and a ring that sits close to the hand.
- Colour becomes a feature. Old cuts show body colour more openly than brilliants. In a natural yellow diamond, that warm colour is exactly the point.
How to set an old cut or rose cut diamond
Your jeweller will work from the exact measurements of the stone. A few ideas that suit these cuts:
- Old mine cut: four double claws or eight claws protect the cushion corners. Yellow gold deepens the warmth of a yellow diamond, while platinum or white gold gives a crisp contrast. A simple solitaire or a halo of small old cut diamonds both work beautifully.
- Rose cut: a bezel (a thin rim of metal around the edge) is the classic choice. It protects the slim girdle and keeps the ring low. A pear rose cut also looks lovely set east-west (sideways), or as the centre of a toi et moi (two-stone) ring.
- Both: keep the setting quiet. These stones are the design. Fine, simple metalwork lets them speak.
How to tell a true old cut from a modern copy
Many new diamonds are now cut in an "old mine" or "rose cut" style, and some are lab-grown. Signs of an original, hand-cut stone:
- Small table, high crown and, for old mine and Old European cuts, a visible open culet.
- Gentle asymmetry: facets that do not meet perfectly and an outline that is a little off-square.
- Soft wear on facet edges from decades of being worn.
- Honest description: the seller should state clearly whether a diamond is natural or lab-grown, and antique or newly cut. Ask for a video in daylight before you buy.
Frequently asked questions
What is the difference between an old cut and an old mine cut?
"Old cut" is a general term for diamonds cut before the modern brilliant. The old mine cut is one specific old cut: the cushion-shaped style of the 1700s and 1800s. The Old European cut is its round successor.
Do old mine cut diamonds sparkle less?
They sparkle differently. You see larger, slower flashes and more colour instead of fine white glitter. Many people find them warmer and more romantic, especially in soft light.
Are rose cut diamonds durable enough for an engagement ring?
Yes. Diamond is the hardest natural material, and a rose cut's low profile makes it practical for daily wear. A bezel or protective setting guards the slim edge against knocks.
Are the diamonds in this post natural?
Yes. Both diamonds shown here are natural, earth-mined diamonds. The 1.75 ct yellow cushion old mine cut is an antique, more than 100 years old, and the pear rose cut weighs 0.97 ct.
Can I buy these diamonds?
Yes, both are available. Message us and we will send more videos in daylight, measurements and full details. We sell loose stones and finished jewellery from our stock; a loose diamond can be set by your own jeweller.
Find your old cut diamond
Browse our diamonds, our engagement and centre stones and our vintage and specialty cuts, or read our visual guide to antique gemstone cuts. Every stone we sell is natural and described honestly, and we cover shipping on every order.
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