3 Carat Lab-Grown Diamond Rings
Lab-grown diamond statement rings: big centre stones, mixed cuts and multi-row designs made to be noticed. Made to order in solid 14kt and 18kt gold, in white, yellow or rose, never 9ct, and crafted to your size.
✓ Made to order · 12-month repair guarantee
✓ Secure checkout · free tracked, signed-for UK delivery
✓ 14-day returns on standard pieces, and faulty pieces always covered · Returns & Refunds
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✓ Made to your size · find your ring size
9 products
Choosing a lab-grown diamond statement ring
What makes a cocktail ring
A cocktail or statement ring is built around presence: a large centre lab-grown diamond, accent stones that widen the outline, or several rows of lab-grown diamonds. It is the ring for occasions, or for anyone who likes to wear something bold every day.
Mixed cuts and accents
Many statement rings combine a centre shape such as oval, cushion, emerald or pear with round, baguette or marquise accents, adding contrast and making the whole ring look larger.
Why lab-grown suits a statement ring
Lab-grown diamonds have the same visual beauty and chemical structure as mined diamonds at a more accessible price, which makes larger carat weights realistic.
Quality, size and timing
Every stone we set is a lab-grown diamond, D–F in colour and VS1 clarity or better. Rings with a centre stone of 1.00ct or above come with an individual IGI grading report as standard. Every ring is made to your size at no extra cost; rings are made to order in around four weeks, including UK hallmarking where required, and UK delivery is free, tracked and signed for.
Your questions
Can a statement ring be an engagement ring? Yes. Many of these designs work beautifully as engagement rings. See all our engagement rings.
Are these lab-grown diamonds? Yes. Lab-grown diamonds have the same chemical composition, hardness and sparkle as mined diamonds; only their origin differs.
Can you make a design that isn’t shown here? Yes. Start on our custom jewellery page and we will design it with you.