Frequently Asked Questions

Luma Jewellery is a London jeweller specialising in lab grown diamond engagement rings, wedding bands and everyday fine jewellery. We design and make our pieces in Hatton Garden and sell direct, which removes the traditional retail markup. Luma was founded in 2024 by Asher Wiener and Amir Sharabi.

We are based in Hatton Garden, London, the historic centre of the UK jewellery trade. Our studio at 13 Hatton Place, London EC1N 8RU runs by appointment.

Our Hatton Garden studio is open by appointment only and is set up for consultations rather than browsing. Most customers buy online. To see pieces in person or talk through a design, book an appointment and we will set time aside for you.

Yes. Every piece is designed and made to order in Hatton Garden, London.

Yes. A lab grown diamond has the same chemical composition, crystal structure, hardness and brilliance as a mined diamond. The only difference is origin: one forms underground, the other is grown in a controlled environment. Read more in our full guide.

The only difference is how they are created. Optically, physically and chemically they are identical. Lab grown diamonds are graded on the same four Cs by the same laboratories, and they typically cost significantly less than a mined diamond of the same specification.

Yes. Every Luma diamond is independently graded, most by the IGI and some by the GIA, on cut, colour, clarity and carat. Each lab grown diamond also carries a laser inscription of its report number on the girdle, invisible to the naked eye.

Yes. A diamond tester measures thermal conductivity, which is the same in lab grown and mined diamonds, so it reads as diamond because it is diamond.

No. A lab grown diamond has the same hardness and durability as a mined diamond. With normal care it keeps its brilliance for life.

Lab grown diamonds involve no mining, which means no land disruption and a fully traceable origin. They are conflict free because they are created in a controlled environment rather than extracted from the earth.

Our focus is lab grown diamonds. We also offer a small curated selection of pre owned mined diamonds for customers who prefer a natural stone without the impact of new mining.

Yes. Most Luma engagement rings are fully customisable. You choose the diamond shape, carat weight, metal and setting on the product page, and the price updates as you go.

We work in 9K, 14K and 18K gold in yellow, white and rose, and 950 platinum. You select your metal when customising your piece.

Yes. If our existing designs are not quite right, our bespoke service designs a piece from scratch with you. Get in touch to start a commission.

Round, oval, emerald, pear, cushion, marquise, princess, radiant, asscher and heart. You choose your shape when customising any ring.

Engagement rings start from £820 and everyday diamond jewellery from around £500. The final price depends on the diamond, metal and setting you choose. All prices are in GBP and include VAT.

We design, make and sell direct from Hatton Garden with no wholesale layer and no retail markup. Combined with lab grown diamonds, that means you pay for the stone, the metal and the craft, not a chain of margins.

Major credit and debit cards, Apple Pay, Klarna and bank transfer.

Yes. Klarna is available at checkout. You can split your payment into three interest free instalments or apply for longer term financing through Klarna directly.

Most pieces are made to order in Hatton Garden, with production taking 3 to 4 weeks before dispatch. Some ready to ship items leave within 1 to 2 business days.

If you need a piece for a particular date, email info@lumajewellery.com before ordering and we will tell you what is possible.

Yes. For help choosing a piece or configuring a ring, contact info@lumajewellery.com or book an appointment and our team will guide you.

Yes. We use plain, discreet packaging with no mention of the contents or value on the outer box. Tell us if there is anything else we can do to protect the surprise.

UK delivery is £4.99, fully insured and tracked. International delivery is a flat £50, fully insured and tracked.

Yes, we ship worldwide. International delivery is a flat £50 and typically takes 5 to 10 business days. Any local import duties or taxes are the recipient's responsibility.

Once your piece is made and dispatched, UK orders arrive via Royal Mail Special Delivery, FedEx or DHL Express and need a signature. International orders typically arrive within 5 to 10 business days.

Yes. Choose Click and Collect at checkout to pick up from our Hatton Garden studio at no extra charge. We will email you to arrange a time once your piece is ready.

Yes. Every order is fully insured and tracked, and you receive a tracking link by email when your piece is dispatched.

Most Luma pieces are made to order, which means they are personalised to your specifications and not subject to the 14 day distance selling cancellation right. As a goodwill gesture, we accept returns on these pieces within 14 days of receipt and issue store credit so you can choose something else. Ready to ship pieces returned within 14 days are refunded to your original payment method per UK consumer law. Bespoke, engraved and pierced pieces cannot be returned unless faulty.

If a piece has a manufacturing fault, contact info@lumajewellery.com with your order number and a photo. We assess returned items within 1 to 5 business days and repair or replace anything covered, at no cost to you.

A refundable postage deposit applies, £40 for UK returns and £150 for international. If a manufacturing fault is confirmed, the deposit is refunded in full.

Made to order pieces are refunded as store credit. Ready to ship pieces returned within 14 days under UK consumer law are refunded to your original payment method. Either way, approved refunds are processed within 3 to 7 business days.

Yes. Every Luma piece is covered by a 1 year manufacturing warranty against defects in craftsmanship, such as a faulty setting or a clasp that fails. It does not cover wear and tear, accidental damage, loss or repairs by another jeweller.

Engagement rings include one free resize within 12 months of purchase. Other ring styles can be resized for a fee. Some styles, such as full eternity rings, cannot be resized, which we confirm before you order.

Take rings off for hands on work, sport and heavy housework, keep pieces away from chlorine and harsh chemicals, and store them separately. We offer professional cleaning and polishing for £20.

We recommend it. The warranty covers manufacturing faults but not loss, theft or accidental damage. Most home contents policies can be extended to cover jewellery, or you can take out a specialist policy.

Email info@lumajewellery.com or call 020 7419 6709. You can also book an appointment to visit our Hatton Garden studio.

Use the Book an Appointment page on the website. Appointments are consultations at our Hatton Garden studio.