How Much Does a Lab‑Grown Diamond Ring Cost in 18K Gold? (UK Price Guide)
**How much does a lab-grown diamond ring cost in 18K gold in the UK?** A typical 1.00 ct lab-grown diamond ring in an 18 K gold setting starts around £1,454, but the price varies with carat size, cut, colour and clarity. This guide explains how these factors—along with ethical advantages and UK pricing—influence the total cost..
What this pricing includes
- Ring style: Solitaire Lumière I
- Metal: 18K yellow gold (setting price £1,140)
- Diamond: Round lab‑grown diamond
- Grades assumed: Colour E–J, Clarity VS1–VS2, Cut VG–EX
- Prices are subject to change based on live inventory, diamond shape and higher grades.
Lab‑grown diamond price guide (18K gold)
| Carat size | Diamond price (GBP) | Complete ring price (GBP) |
|---|---|---|
| 1.00 ct | £314 | £1,454 |
| 1.71 ct | £432 | £1,572 |
| 2.10 ct | £469 | £1,609 |
| 2.76 ct | £623 | £1,763 |
| 3.60 ct | £811 | £1,951 |
| 4.01 ct | £932 | £2,072 |
| 5.52 ct | £1,171 | £2,311 |
| 6.00 ct | £1,454 | £2,594 |
| 6.51 ct | £1,549 | £2,689 |
| 7.01 ct | £1,858 | £2,998 |
| 7.51 ct | £1,988 | £3,128 |
| 8.12 ct | £2,445 | £3,585 |
| 9.08 ct | £2,852 | £3,992 |
| 9.55 ct | £2,731 | £3,871 |
| 10.00 ct | £4,378 | £5,518 |
Why choose lab‑grown diamonds?
Lab‑grown diamonds are chemically and optically identical to mined diamonds but cost up to 70% less. They offer an ethical, environmentally friendly alternative without compromising on brilliance or durability.
Pairing a lab‑grown diamond with 18K gold gives you the look and feel of a luxury ring while keeping the overall budget more accessible.
Frequently asked questions
Are lab‑grown diamonds considered “real” diamonds?
Yes. Lab‑grown diamonds have the same crystal structure and hardness as mined diamonds. They are graded by the same laboratories and are physically indistinguishable without specialised equipment.
Do lab‑grown diamonds hold value?
Lab‑grown diamonds typically have lower resale values than mined diamonds. However, most people buy engagement rings for sentimental value and ethical reasons rather than resale. The lower initial price means you get more diamond for your budget.
Do lab‑grown diamonds last forever?
Yes. Like natural diamonds, lab‑grown diamonds are extremely hard (10 on the Mohs scale) and will last indefinitely with proper care.
Summary
Lab‑grown diamonds in 18K gold start at about £1,454 for a 1.00ct ring and rise to around £5,518 for a 10.00ct ring. They offer exceptional value for customers who want ethical, high‑quality diamonds without the premium price of mined stones.