A natural diamond in the UK typically holds more resale value than a lab‑grown diamond, but both lose a significant portion of their retail price when resold. The resale value depends on factors like quality, carat weight, certification and market demand.
Do natural diamonds hold their value better than lab‑grown diamonds?
- Natural diamonds are considered rare because they form deep within the earth over billions of years; the finite supply helps them maintain a portion of their purchase price.
- Lab‑grown diamonds are created in months and are less scarce. Because supply can increase quickly, resale values are generally lower and trending downward.
- Both natural and lab‑grown diamonds lose their retail markup once purchased; expect 40‑70 % depreciation in the short term.
What factors affect diamond resale value?
- Carat weight and quality: Larger stones with excellent cut, colour and clarity grades hold value better than smaller, lower‑quality diamonds.
- Certification: A grading report from GIA or IGI verifies authenticity and quality, making resale easier.
- Market demand: Consumer preferences change; natural diamonds currently have stronger resale markets than lab‑grown stones.
- Designer settings: Rings from well‑known brands or with unique designs can retain more value.
How does lab‑grown diamond resale compare?
- Lab‑grown diamonds cost 30–70 % less than natural diamonds at purchase; this lower price reduces potential resale value.
- Buyers often view lab‑grown diamonds as fashion jewellery rather than investment pieces; resale markets are limited.
- Advancements in technology may further lower lab‑grown diamond prices over time, impacting future values.
Tips for maximising resale value
- Choose natural diamonds with a good balance of cut, colour (G‑H) and clarity (VS2–SI1) to avoid overpaying for extreme grades.
- Keep your certification and receipts; proof of authenticity and purchase price helps when you sell.
- Buy from jewellers that offer trade‑in or buyback programmes if you think you might upgrade later.
- Focus on the sentimental value of your ring rather than viewing it as a financial investment.
Internal links
- See our natural diamond price guide for 18 K or 9 ct rings.
- Compare lab‑grown diamond prices in 18 K or 9 ct rings.
Frequently asked questions
Are lab‑grown diamonds worthless?
No. Lab‑grown diamonds are chemically and optically identical to mined diamonds, but their resale values are lower because supply is abundant and consumer demand is still developing.
Do natural diamonds appreciate over time?
Most diamonds do not appreciate significantly. While rare, large or fancy‑coloured natural diamonds can hold value better, typical engagement‑ring diamonds will resell for less than their purchase price.
Where can I sell my diamond?
You can sell to local jewellers, consignment shops, pawn shops or through private sales. Expect to receive less than the original purchase price because retailers need to make a margin.
Which diamond is better for investment?
Fine natural diamonds with excellent cut, colour, clarity and carat weight may retain more value, but jewellery is generally a sentimental purchase rather than a financial investment.
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Last updated: Jan 2026