Lucenjuri: made-to-order lab-grown diamond rings and jewellery

Shopping at Lucenjuri? See all current Lucenjuri discount codes and deals, checked regularly.

Lucenjuri is an online jeweller that sells only lab-grown diamonds, set in engagement rings, wedding bands and everyday fine jewellery. It's based in California, but UK visitors see prices in pounds, express delivery is free, and UK taxes are paid at checkout, so there's no surprise bill when the parcel arrives. Every piece is hand-finished and made to order.

It suits couples shopping for an engagement ring who'd prefer a lab-grown stone, and anyone who likes to design their own ring. You can start with a setting and add a diamond, or pick the stone first, then choose the shape, carat weight and metal, from 14K gold to platinum. Diamonds over one carat come with an IGI certificate.

What's worth a look

Here are six pieces from Lucenjuri's range; prices change with the stone and metal you choose, so check them on each page.

The Toi et Moi Emerald and Pear ring pairs two differently cut stones on a slim yellow gold band, for anyone after something less traditional than a solitaire. For a gift that isn't a ring, the Pear Solitaire Pendant Necklace comes with stones from half a carat to two carats on an adjustable 16 to 18 inch chain.

Ring prices shown on the product pages are for the setting only. The centre diamond is chosen and priced separately, so budget for both when comparing. There are matching wedding and eternity bands too, plus a men's range of rings, earrings, necklaces and bracelets, if you're buying for both of you.

Current offers

• Up to 40% off across the site, with the original prices shown crossed out.
• An extra 10% off with the code LOVE. The banner says the offer ends soon but gives no date, so check it's still showing before you order.
• Free express delivery on every order, including to the UK, plus free returns within 60 days on rings and finished jewellery.
• Signing up for an account brings a discount on your first order; the amount is shown in dollars on the sign-up offer.

How to save more

• Play with the carat weight and quality grade on the product page: a slightly smaller stone or the "Good" quality tier can make a big difference to the total.
• Use the free resize within 60 days if the fit is off, rather than paying a local jeweller, which can also affect the warranty.
• Pick your piece carefully, as custom, engraved and personalised orders can't be returned for a refund, and a second return can carry a 20% restocking fee.

Products, prices and offers checked on the store's own website on 23 Oct 2026. Prices and stock can change.

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