18ct Gold 1.00ct Old Mine Cushion Cut Diamond Solitaire Engagement Ring

A Beautiful Old Mine-Cut Natural Diamond Solitaire Ring

A stunning old mine-cut natural diamond solitaire ring, suitable as an engagement ring or an elegant dress ring. The diamond displays the distinctive charm and character associated with antique old mine cuts, offering exceptional individuality and presence.

Originally set in a Victorian ring, the diamond was professionally mounted onto a brand-new 18ct yellow gold shank in 2014 and certified by a qualified goldsmith, combining antique character with modern structural integrity.

The ring has been professionally cleaned and lightly polished and is presented in a brand-new luxury ring box, accompanied by a valuation certificate.

Valuation & Investment Value

In 2014, this ring was valued at £7,375.
The current 2026 valuation is approximately £11,000.

Antique old mine-cut diamonds are increasingly scarce, and fine examples of this age and size are becoming ever more difficult to source, particularly those without significant age-related imperfections. As a result, jewellery of this quality typically holds its value well over time and is expected to continue appreciating, making this a beautiful piece to wear and a considered long-term investment.

Ring Size

P

Ring Resizing

This ring can be resized free of charge for up to two sizes up or down.

Please use the dropdown menu on this page to select the size you require.

If a larger size adjustment is needed, please refer to our Ring Sizing Guide, which includes important information and any additional costs:
https://vintagedarlingjewellery.com/pages/ring-size-guide

If you are unsure of your size or would like advice before purchasing, our live chat is the quickest way to get in touch — we are always happy to help.

Specifications

• Metal: Solid 18ct Yellow Gold

• Weight: 4.41 grams

• Diamond: 1 natural old mine-cut diamond

• Diamond Carat Weight: 1.01ct

• Diamond Clarity & Colour: SI, K/L

• Hallmarks: DNL, Crown, 750, Leopard (London), P

Condition

This ring is in excellent condition, with the diamond securely set in a modern shank while retaining its antique character.

Delivery

• Free UK next-day delivery

• Fully insured and tracked

Worldwide tracked & insured shipping: £10.50

Returns

Returns are always accepted, with no questions asked.

Any Questions?

If you have any questions, please don’t hesitate to get in touch — we are always happy to help.