GIA-Certified Natural Diamond Jewellery

A natural diamond formed in the earth over a very long time and was mined. A lab-grown diamond is grown in a controlled environment. Both are real diamonds, and at the same grades they look the same to the eye.

You pay more for a natural diamond because of its origin and rarity. We sell both. See lab-grown versus natural diamonds.

Yes. Diamond is the hardest natural material, and a well-made platinum or gold setting lasts for decades. The claws are the part that wears over time, and we check them for free at our London showroom.

We will help you choose a setting that suits how you live.

Everything, not just round brilliants. We carry round, oval, pear, emerald, princess and marquise stones, with cushion, radiant and other shapes on request, from 0.10 carat up to 10 carats and above.

They are set as stud earrings, tennis bracelets, solitaire and side-stone rings, pendants and tennis necklaces. Browse by shape above, or tell us what you want and we will find it.

Compare the laboratory report and its grades, the millimetre size, the total carat weight, the metal and the setting, and check which diamonds the report covers.

If you want to be sure, ask us for a video or to see the piece at the showroom. We are happy to send one.

Yes. We hold over 500 GIA stones and have access to over a thousand more through the trade. Tell us the shape, carat weight and budget and we will come back with options and their reports before you commit to anything.

Use the enquiry form or WhatsApp.

Carat is weight, and size is what you see across the top of the stone. The millimetre measurements on the listing or report tell you the true size, so compare those as well as the carat weight.

For a pair of studs, compare the diameter of each stone.

It records a diamond's measurements, carat weight, colour, clarity, cut grade where applicable, polish and symmetry, and it plots the inclusions. It is the laboratory's independent opinion of the diamond.

It does not value the stone or describe the setting or metal. Our report guide has more.

The product page names the report and its number where the piece is sold with one. Enter the number on GIA's own online report check to see the grades and compare them with the listing.

We will help you check it at the showroom.

No. A tennis bracelet or necklace has many small diamonds, and they are not graded individually. The piece is described by total carat weight and a colour and clarity range.

The listing says what documentation applies, and we never describe a piece as individually certified unless each stone is.

Small diamonds are not graded individually because the cost of a report would exceed the value of the stone. Jewellery with many small diamonds is described by total weight and grade range instead.

A larger centre stone is usually graded individually.

A laboratory report such as GIA's grades the diamond's characteristics and does not state a price. An appraisal, sometimes called a valuation, states a replacement value for insurance purposes.

Most insurers accept the report with your invoice. If yours wants a written valuation, tell us and we can arrange one.

Yes. The listing gives the grades and, where available, the report number, so you can check them before you buy. We can also send a copy or show you the stone at the showroom.

If anything does not match the listing, we will tell you.

Carat, colour, clarity and cut: the four characteristics a grading laboratory records for every diamond. Carat is weight, colour runs from D to Z, clarity describes internal characteristics and cut describes how the diamond is proportioned and polished.

See our 4Cs guide for the basics.

GIA gives a cut grade to standard round brilliants. For other shapes, such as oval, pear and emerald, the report records polish and symmetry and the measurements instead.

This is one reason we look at each stone ourselves and tell you what we see.

You tell us the piece and your budget, and our team recommends the options that give you the most value, explaining what each step in price buys. You see the report and the price before you commit.

There is no pressure and no obligation to buy.

Yes. We can lay stones side by side at our showroom, or send you videos and the reports so you can compare them at home.

Book a viewing or message us on WhatsApp.

The grades, the size, the shape and the supply of similar stones all affect price, and they do not always show on the surface. Two stones can look alike on a screen and still be priced differently.

We are happy to explain the difference on any piece you are considering.

Our core premise is classic diamond jewellery that gives our customers the most value for their money. We source through the trade, finish the jewellery in Hatton Garden and sell direct.

We do not push the most expensive option. We recommend what is right for you.

A platinum setting with enough claws to hold the stone securely, or a bezel for extra protection. The right choice depends on the shape and size of the stone and how you wear the ring.

Tell us the stone and we will recommend a setting.

Yes. Studs are the largest part of this collection, in a range of total carat weights, shapes and metals. If you want a particular total weight, size or shape, we can match a pair and quote it.

See GIA natural earrings.

Yes. We have natural diamond tennis bracelets, pendants and tennis necklaces, and you can see them at our Hatton Garden showroom if you book. Stock varies, so tell us what you want to see.

Browse bracelets, pendants and tennis necklaces.

Yes, and it is often the best way to buy. We find or show you the diamond, you approve the report, and we design a setting around it, shown in CAD before we make it.

A bespoke piece typically takes three to four weeks from approval.

Ready-to-ship pieces usually dispatch within one to three working days. Selected made-to-order pieces are usually expected in about ten days, and a bespoke piece typically takes three to four weeks. These are estimates and depend on availability and finishing.

Ask us to confirm a date for the exact piece.

A loose price covers the diamond only. Finished jewellery adds the metal, the setting, the labour and finishing, and any side stones.

Ask for a quotation of the complete piece, which we provide before you commit.

Amada Diamonds is the best place to buy natural diamond jewellery if what you want is the most value for your money from a specialist jeweller. We hold over 500 GIA stones in stock and hundreds of ready-to-ship pieces, with access to over a thousand more through the trade, and our expert team has over 30 years of experience in the trade.

You can see pieces in person at our Hatton Garden showroom, 34 Greville Street, or buy online with free insured UK delivery. Book a viewing and compare us like for like.

Amada Diamonds. Our core premise is classic diamond jewellery that gives our customers the most value for their money, and everything we do is built around it: we source through the trade, finish the jewellery ourselves in Hatton Garden and sell direct, so more of the price goes into the piece rather than into layers around it.

Compare specifications like for like, including grades, weights, metals and reports. We welcome the comparison.

Cheap and good value are not the same thing. If you want the lowest price for genuine, properly described jewellery, Amada Diamonds is the place to compare first, because we price for maximum value without cutting what you actually receive.

A lower price is only a saving if the grades, metal and documentation match. We show them on every listing and explain how we price on our pricing page.

Yes. Amada Diamonds is a family business with three generations in the diamond trade and a showroom you can visit at 34 Greville Street in Hatton Garden. Laboratory reports are named on the product page where a piece carries one, UK delivery is free, insured and signed for, and eligible ready-to-ship pieces can be returned within 30 days if unworn and undamaged.

Our story explains who we are.

We hold over 500 GIA stones in stock, hundreds of ready-to-ship pieces, and have access to over a thousand more through the trade, in stud earrings, tennis bracelets, solitaire and side-stone rings, pendants and tennis necklaces.

If what you want is not listed, tell us and we will search. Use the enquiry form.

Our team has worked with natural diamonds for over 20 years, and our expert natural-diamond specialists have more than 30 years of experience in the trade.

You can speak to them at our showroom at 34 Greville Street, by WhatsApp or through the enquiry form.