Guides

Coloured Lab Grown Diamond

From soft pastels to vivid, saturated tones, coloured lab diamonds bring a world of personality to fine jewellery. Each stone is chosen for the richness of its hue and the brilliance of its cut, creating a piece that feels truly individual — designed to reflect moments, emotions, and styles as distinctive as you are.

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What are coloured lab diamonds?

Coloured lab diamonds are genuine diamonds, created in a laboratory rather than mined, that display rare and beautiful hues ranging from subtle pastels to vivid, saturated tones. Their colour is achieved through controlled growth conditions or precise post-growth treatments, resulting in shades that rival — and sometimes surpass — the beauty of their natural counterparts. Just like colourless lab-grown diamonds, they share the same physical, chemical, and optical properties as mined diamonds, offering extraordinary beauty with a conscious origin.

What makes coloured lab grown diamonds different?

Every coloured lab diamond tells a story through its hue. Rare yet within reach, each stone is one of a kind — chosen not only for its brilliance but also for the emotion and individuality it inspires.

01 Colour

Beauty beyond the classic

Coloured lab diamonds offer a captivating alternative to traditional colourless stones, infusing individuality and personality into your jewellery. From delicate pastels to vivid, saturated tones, each hue is selected for its richness, depth, and lasting vibrancy — ensuring your piece makes a statement all its own.

02 Uniqueness

No two alike

Every coloured lab diamond is inherently one of a kind. Subtle variations in tone, depth, and light performance mean that no two stones are ever identical, giving you a jewel as unique as the moment it celebrates.

03 Accessibility

Rare beauty within reach

Natural coloured diamonds are some of the rarest and most expensive gemstones in the world. Lab-grown coloured diamonds make these extraordinary hues accessible, allowing you to enjoy rare beauty without compromise on size, quality, or ethics.

04 Symbolism

A colour for every emotion

From the romance of blush pinks to the serenity of cool blues, coloured diamonds hold meanings as individual as the people who wear them. Each shade offers a way to express your style, personality, and sentiment in a form as distinctive as you are.

Why choose Keanis coloured lab grown diamonds?

Choosing a coloured lab diamond is as much about the craftsmanship as it is about the stone itself. At Keanis, we ensure every piece reflects exceptional beauty, lasting quality, and a conscious origin — so your jewellery feels as good to own as it does to wear.

Handpicked for perfection

We personally select each coloured lab diamond for its exceptional hue, precision cut, and clarity — holding it to the same high standards as our colourless lab diamonds.
Beauty with dignity

Our coloured lab diamonds are sustainably produced with no mining and full traceability. You can wear them with pride, knowing they reflect your values as much as your style.
Certified and verified

Each coloured lab diamond is accompanied by an IGI certificate, confirming its authenticity, quality, and colour origin — so you know exactly what makes your stone unique.

More about Coloured lab grown diamonds

There’s no one “best” colour — only the one that speaks to you. From soft blush pinks to vibrant ocean blues, each hue carries its own personality and symbolism. Choosing a coloured diamond is deeply personal and often a reflection of your style, emotion, or story. Every shade is beautiful in its own right.
Both coloured and colourless lab-grown diamonds are graded by respected gemological institutes such as IGI, with reports that detail the diamond’s carat weight, clarity, and cut.
The main difference lies in how colour is assessed. Instead of the traditional D–Z scale used for colourless diamonds, coloured diamonds are evaluated based on the tone and saturation of their hue — such as pink, blue, or yellow. This ensures a consistent, transparent standard for grading the unique beauty of each coloured stone.
Every coloured lab diamond at Keanis comes with an IGI grading report, offering you confidence in its quality, character, and craftsmanship.
Because no two coloured lab diamonds are ever exactly the same, we do not offer standard made-to-order designs using these stones. Each gem is individually sourced for its unique hue and character, which means availability can’t always be guaranteed. Instead, we release select pieces crafted around the beauty of each individual stone — ready to treasure as one-of-a-kind.
We understand the joy of finding a stone that speaks to you. While we can’t guarantee availability of specific combinations — due to the rarity and individuality of coloured lab diamonds — we’re always happy to explore what’s possible. If you have a particular colour, size, or shape in mind, reach out to our team. We’ll do our best to match you with something truly special from our existing designs.
Coloured lab diamonds are far rarer and more complex to grow. Achieving a vivid, even colour — while maintaining brilliance and clarity — requires advanced technology, longer growth times, and careful selection. This rarity, combined with their striking beauty, means they often command a premium over traditional colourless stones.