All Jewellery

Discover the complete MASAAT London collection, bringing lab-grown diamond, natural diamond and coloured gemstone jewellery together in one place. From engagement rings and wedding rings to earrings, necklaces and bracelets, every piece is made to order in the United Kingdom around considered proportions, certified stones and precious metals. Browse the full collection to compare designs across all three collections and find the piece that feels right for you.

Asscher Cut Five Stone Bezel Set Yellow Diamond Bracelet - Paperclip - 18ct Yellow Gold - 4ct
Asscher Cut Five Stone Bezel Set Yellow Diamond Bracelet

Fine Chain

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£4,299
Emerald Cut Five Stone Bezel Set Yellow Diamond Bracelet - Fine - 18ct Yellow Gold - 4ct
Emerald Cut Five Stone Bezel Set Yellow Diamond Bracelet

Fine Chain

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£4,299
Five Stone Bezel Set Round Cut Yellow Diamond Bracelet - Fine - 18ct Yellow Gold - 4ct
Five Stone Bezel Set Round Cut Yellow Diamond Bracelet

Fine Chain

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£4,299
Marquise Cut Accent Round Cut Bezel Set Yellow Diamond Bracelet - Fine - 18ct Yellow Gold - 4ct
Marquise Cut Accent Round Cut Bezel Set Yellow Diamond Bracelet

Fine Chain

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£4,299
Marquise Cut Five Stone Bezel Set Yellow Diamond Bracelet - Fine - 18ct Yellow Gold - 4ct
Marquise Cut Five Stone Bezel Set Yellow Diamond Bracelet

Fine Chain

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£4,299
Oval Cut Five Stone Bezel Set Yellow Diamond Bracelet - Fine - 18ct Yellow Gold - 4ct
Oval Cut Five Stone Bezel Set Yellow Diamond Bracelet

Fine Chain

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£4,299
Pear Cut Five Stone Bezel Set Yellow Diamond Bracelet - Fine - 18ct Yellow Gold - 4ct
Pear Cut Five Stone Bezel Set Yellow Diamond Bracelet

Fine Chain

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£4,299
Round Cut Five Stone Bezel Set Yellow Diamond Bracelet - Fine - 18ct Yellow Gold - 4ct
Round Cut Five Stone Bezel Set Yellow Diamond Bracelet

Fine Chain

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£4,299
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32 1.50ct Emerald & Diamond Toi et Moi Ring
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£4,299
Eternity Round Cut Diamond Ring
Eternity Round Cut Diamond Pave Band Ring
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£4,199
Eternity Emerald Cut Diamond Ring
Eternity Emerald Cut Diamond Pave Band Ring
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£4,199
Minerva Cushion Cut Diamond Ring - 18ct Yellow Gold - 8ct
Minerva Cushion Cut Diamond Ring
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£4,199
Minerva Asscher Cut Diamond Pave Band Ring - 18ct Yellow Gold - 8ct
Minerva Asscher Cut Diamond Ring
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£4,199
Oceanus Three Stone Cushion & Round Cut Diamond Ring - 18ct Yellow Gold - 8ct
Oceanus Three Stone Cushion & Round Cut Diamond Ring
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£4,199
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38 1.38ct Emerald Cut Emerald & Diamond Halo Ring
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£4,199
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30 1.59ct Pear Cut Emerald & Diamond Halo Ring
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£4,099
Oval Cut Yellow Diamond Pave Band Bangle - 18ct Yellow Gold - 4ct
Oval Cut Yellow Diamond Pave Band Bangle
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£3,999
Pear & Round Yellow Diamond Pave Band Bangle - 18ct Yellow Gold - 4ct
Pear & Round Yellow Diamond Pave Band Bangle
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£3,999
Pear Cut Yellow Diamond Pave Band Bangle - 18ct Yellow Gold - 4ct
Pear Cut Yellow Diamond Pave Band Bangle
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£3,999
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51 2.26ct Green Tourmaline & Diamond Trilogy Ring
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£3,999
Asscher Cut Halo Yellow Diamond Pave Band Ring - Platinum (950) - 4ct
Asscher Cut Halo Yellow Diamond Pave Band Ring
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£3,899
Asscher Cut Halo Diamond Pave Band Ring - 18ct Yellow Gold - 4ct
Asscher Cut Halo Diamond Pave Band Ring
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£3,899
Cushion Cut Halo Diamond Pave Band Ring - 18ct Yellow Gold - 4ct
Cushion Cut Halo Diamond Pave Band Ring
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£3,899
Emerald Cut Halo Yellow Diamond Pave Band Ring - Platinum (950) - 4ct
Emerald Cut Halo Yellow Diamond Pave Band Ring
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£3,899

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Explore Fine Jewellery

Browsing the whole collection at once is the easiest way to see how our designs relate to one another. Delicate everyday pieces sit alongside more distinctive designs where the stone is the focal point, so you can gauge scale, proportion and presence before narrowing by category.

Use the filters to work through the collection by metal, stone colour, cut and price, or by collection where you already know whether you are looking for a lab-grown diamond, a natural diamond or a coloured gemstone.

Rings, Earrings, Necklaces & Bracelets

Each category offers a different way to wear a stone. Rings make it a visible part of your everyday style, earrings introduce it close to the face, necklaces create a considered focal point and bracelets add easily to a collection you already wear.

Explore all rings, all earrings, all necklaces and all bracelets, or go straight to the bridal edits — engagement rings and wedding rings.

Lumen, Heirloom & Atlas

Our jewellery is organised into three collections. Lumen is lab-grown diamond jewellery, each stone IGI-graded so cut, colour, clarity and carat weight are documented rather than assumed. Heirloom is natural diamond jewellery, independently graded by GIA. Atlas is coloured gemstone jewellery — emerald, aquamarine and tourmaline set in 18ct gold and platinum.

Browse each in full: All Lumen, All Heirloom and All Atlas.

Choosing Your Jewellery

When comparing pieces, look at the stone's cut, proportions and setting alongside the overall design rather than at carat alone. The precious metal matters too: white gold reads clean and contemporary, yellow gold offers warmer contrast, rose gold a softer tone and platinum a classic alternative.

Think about how often you expect to wear the piece and how it will sit with the jewellery you already own. The best choice balances the stone's characteristics against the way you intend to wear it.

Frequently Asked Questions

Our collection spans rings, earrings, necklaces and bracelets in lab-grown diamond, natural diamond and coloured gemstone designs, including dedicated engagement ring and wedding ring edits.

Lumen is lab-grown diamond jewellery, IGI-graded. Heirloom is natural diamond jewellery, GIA-graded. Atlas is coloured gemstone jewellery — emerald, aquamarine and tourmaline set in 18ct gold and platinum.

Consider the jewellery type, stone shape, carat, colour, clarity, setting and metal together, then weigh those details against your personal style and how often you plan to wear the piece.