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A fancy coloured diamond is a true diamond defined by what it has rather than what it lacks. Where a colourless stone is prized for the absence of tint, these diamonds carry a natural body colour written into the crystal itself. The result is a smaller, rarer family of stones with their own grading language and their own appeal.
Yellow is the most familiar fancy colour and ranges from soft butter tones to a saturated golden hue. Brown and champagne diamonds sit alongside it, warm and understated, and are often the most accessible way in. Beyond these lie the genuine rarities.
Colour in a diamond comes from precise causes. Nitrogen trapped in the carbon lattice produces yellow tones. Boron gives the rare cool blues. Pink works differently again: rather than a chemical element, it arises from structural distortion in the crystal as it formed, which changes how the stone absorbs light. Each colour is, in effect, a record of the conditions deep within the earth that made the diamond.
Coloured diamonds are graded on intensity rather than the colourless D to Z scale. The progression runs from Faint and Very Light through Fancy Light, Fancy and Fancy Intense, up to Fancy Vivid and Fancy Deep at the strongest end. Intensity, more than size, tends to drive value, since a small stone with vivid, even colour can outrank a larger but paler one.
Pink and blue diamonds are the rarest in nature and command the highest prices, while yellow, brown and champagne stones are more attainable. Laboratory-grown diamonds change this picture. They allow vivid fancy colour at a far gentler price, and because they are chemically and physically identical to mined diamonds, they share the same Mohs 10 hardness and full durability for everyday wear. Every diamond we offer, natural or grown, is independently graded. Pricing depends on the piece and is quoted per commission after a consultation.
Setting and metal can do a great deal for a stone. Yellow gold deepens a yellow diamond, cool platinum and white gold flatter blues, pinks and greys, and a closed-back or coloured setting can concentrate the body colour the eye reads.
Yes. They are true diamonds with natural body colour rather than the near-absence of colour found in white stones. They share the same chemistry and the same Mohs 10 hardness.
It can be an excellent one. A laboratory-grown stone offers vivid fancy colour affordably and is fully durable. You can read more on our lab-grown diamonds page.
Yellow is a popular and wearable choice with real presence. We design yellow diamond engagement rings entirely in-house and can advise on intensity, metal and setting for your stone.
To see fancy coloured diamonds in person and discuss a design, book a consultation at our private studio, or read more about our bespoke engagement rings.
Fancy colour diamonds are among the rarest and most captivating gemstones on earth. Unlike traditional white diamonds, these extraordinary stones display naturally occurring hues that range from vivid yellows and intense pinks to deep blues, rich greens and every shade in between. Their colour is created by trace elements or structural anomalies during the diamond’s formation millions of years ago, making each stone a unique geological masterpiece.
The GIA fancy-colour grading scale classifies these diamonds from Fancy Light through Fancy, Fancy Intense, Fancy Deep and Fancy Vivid. A higher saturation grade commands greater rarity and value · a Fancy Vivid yellow or pink diamond, for example, is exceptionally sought-after by collectors and connoisseurs. When choosing a fancy colour diamond, saturation and tone are typically more important than clarity or cut grade.
It is important to distinguish between naturally coloured and treated fancy diamonds. Natural fancy colour diamonds derive their hue entirely from geological processes, whereas treated stones have been enhanced through irradiation or high-pressure, high-temperature (HPHT) methods. Both can be beautiful, but natural fancy colours hold considerably stronger investment potential over time.
At Hatton Garden Bespoke Jewellery, we specialise in sourcing certified fancy colour diamonds from trusted, ethical suppliers. Whether you are looking for a striking fancy yellow diamond ring or a rare pink or blue stone for a bespoke commission, our Hatton Garden experts will guide you through every option. Browse our live inventory below, or contact our team to discuss your requirements in a personal consultation at our London studio.
ENQUIRE ABOUT FANCY DIAMONDS