Lab-Grown Diamond Necklaces & Pendants
Every lab-grown diamond necklace and pendant-on-chain in The Lab Jewellers catalogue — solitaires, halos, station necklaces, and statement multi-stone designs. Lab-grown diamond throughout. Solid 14kt and 18kt white gold, solid 14kt and 18kt yellow gold, and solid 14kt and 18kt rose gold. Made to order.
✓ 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
62 products
Choosing a lab-grown diamond necklace
Necklace or pendant?
Our necklaces come with the chain as part of the design, and you choose the length, 16, 18 or 20 inches, for the same price. Pendants are sold on their own, so you can wear one on a chain you already love, or add a matching chain in the same metal when you order.
Which length suits you?
As a rough guide, 16 inches sits close at the base of the neck, 18 inches rests around the collarbone and is the most popular choice, and 20 inches falls just below it, which works well over higher necklines.
Find your style
A solitaire necklace is a single lab-grown diamond on a fine chain: the piece you never take off. Halo designs frame the centre stone with smaller lab-grown diamonds, drop and station necklaces add movement, and a riviere, a graduated line of lab-grown diamonds all the way round, is the ultimate statement. See our statement necklaces for the boldest designs.
Quality you can see
Every stone we set is a lab-grown diamond, D–F in colour and VS1 clarity or better. Pieces with a centre stone of 1.00ct or above include an individual IGI grading report as standard. On multi-stone designs such as rivieres, the smaller stones are matched for colour and clarity rather than graded one by one.
Metals and delivery
Choose solid 14kt or 18kt gold in white, yellow or rose, or solid 925 sterling silver from our Silver & Lab-Grown Diamond edit. Every piece is made to order in around four weeks, including UK hallmarking where required. UK delivery is free, tracked and signed for, in a branded presentation box.
Your questions
Is a lab-grown diamond necklace a lab-grown diamond? Yes. Lab-grown diamonds have the same chemical composition, hardness and sparkle as mined stones; only their origin differs.
Does a pendant come with a chain? Pendants are sold without a chain, and you can add a matching chain in the same metal when you order. Necklaces always include their chain.