Old Cut Diamond
An old cut diamond possesses an unmistakable hand-polished warmth, shaped by early gem-cutters before modern symmetry took over.
What an old cut diamond is
When you search for an old cut diamond, you are looking at stones shaped by hand before modern machinery standardised facet geometry. The pieces on this page span the Victorian, Edwardian, and mid-century periods, capturing eras when stones were cut to maximise brilliance under candlelight rather than electric lamps.
Engagement rings and solitaires dominate the selection, alongside cluster settings, multi-stone rings, and drop earrings. You will encounter stones mounted in yellow gold, white gold, and platinum, often accompanied by rubies, sapphires, or emeralds.
How they were made
Goldsmiths worked by hand to forge mountings in 18ct gold and platinum, frequently combining yellow gold shanks with platinum settings to enhance the whiteness of the stones. Pave and solitaire arrangements required delicate metalwork, securing each diamond with hand-formed claws or flush bezels.
Diamond-cutters shaped these stones using rudimentary hand tools, judging proportions by eye rather than laser precision. This artisanal approach means no two old cut stones share identical facet angles or symmetry.
Retail Price Guide 2026
Typical UK retail prices for old cut diamond, calculated from the Sellingantiques database of over a million retail prices indexed since 2003. This retail price guide relies exclusively on Sellingantiques data; no external sources or auction records are used, so the figures do not describe the wider market.
The listings span Victorian, Edwardian, and mid-century eras, using 18ct gold and platinum to mount diamonds, sapphires, and rubies.
What varies in quality
The distinction between tiers rests upon the proportions of the hand-cut facets and the natural clarity and colour of the diamond itself. Stones with an open culet placed dead centre and balanced crown heights demonstrate superior early cutting skill.
The harmony between the diamond and its mounting dictates overall quality. Premium examples feature robust, uncompromised settings in platinum or 18ct gold that hold the historic stone securely without masking its proportions.
The Old Cut Diamond Glossary
- Culet
- The tiny facet at the very bottom of a gemstone. In old cut diamonds, this is often visibly open rather than coming to a sharp point.
- Old European Cut
- A round diamond shape popular in the late 19th and early 20th centuries, featuring a circular girdle and large facets.
- Old Mine Cut
- A cushion-shaped diamond with a near-square girdle, high crown, and deep pavilion typical of 18th and 19th-century cutting.
- Solitaire
- A ring mounting designed to showcase a single central gemstone without secondary accent stones.
- Pave
- A setting style where small gemstones are closely set together with minimal visible metal, creating a continuous surface of sparkle.
Frequently Asked Questions
How do I date an old cut diamond ring?
Dating relies heavily on the mounting style, metal combinations, and the specific geometry of the hand-cut stone. Edwardian and Victorian pieces often incorporate distinct gallery work and specific claw configurations.
Assay marks and Birmingham hallmarks stamped inside the 18ct gold or platinum band provide definitive chronological reference points when present.
Are old cut diamonds fragile?
These stones are durable, but their historic proportions require reasonable care during daily wear. The higher crown and open culet reflect hand-polishing techniques from eras long past.
Setting styles like flush bezels and secure platinum claws help protect the girdle and edges from accidental impact.
What is the difference between old mine and old European cuts?
Old mine cuts possess a cushion or near-square outline with a rounded perimeter, originating earlier in the 19th century. They feature smaller tables and deep pavilions.
Old European cuts transition toward a circular girdle, representing the geometric evolution toward modern round brilliant stones in the Edwardian era.
Can I resize an antique diamond ring?
Most 18ct gold and platinum rings can be adjusted by a skilled jeweller without harming the structural integrity of the piece. The shank thickness and hallmark placement dictate the limits of adjustment.
Intricate shoulders or pave-set bands require careful evaluation to ensure the adjustment does not disturb the surrounding stones.