What is IGI certification?

The International Gemological Institute (IGI) is a leading independent laboratory that evaluates and grades diamonds. An IGI certificate guarantees the authenticity, quality, and specific characteristics (cut, colour, clarity, and carat) of our lab-grown diamonds, giving you complete confidence in your purchase.

Why choose lab-grown diamonds?

Lab-grown diamonds are physically, chemically, and optically identical to natural diamonds. They offer exceptional value and beauty while being created in highly controlled environments, making them a brilliant choice for modern fine jewellery.

Do you offer a warranty?

Yes. We stand behind our craftsmanship with a complimentary lifetime warranty on all pieces.

How long does delivery take?

• Ready-to-ship pieces are dispatched within 24 hours • Bespoke creations are typically delivered within 3–4 weeks

Do you offer a warranty?

Yes. All Masaat London pieces are covered by a complimentary lifetime warranty.

Exquisite Natural and Lab-Grown Diamond Rings

At Masaat, our Rings collection brings together fine diamond jewellery crafted to order in the United Kingdom. Every ring is set in natural or lab-grown diamonds, with premium metals chosen for lasting quality.

Unica Toi-et Moi Emerald & Asscher Cut Pink Diamond Ring

From £194.92 per month

£2,599

Unica Toi-et Moi Emerald & Asscher Cut Yellow Diamond Ring

From £194.92 per month

£2,599

Unica Toi-et Moi Emerald & Asscher Cut Blue Diamond Ring

From £194.92 per month

£2,599

Unica Toi-et Moi Emerald & Asscher Cut Green Diamond Ring

From £194.92 per month

£2,599

Unica Toi-et Moi Emerald & Asscher Cut Diamond Ring

From £194.92 per month

£2,599

Wedding Band

From £187.42 per month

£2,499

Ships in 24 hours

41 2.21ct Aquamarine Tension Set Ring

From £187.42 per month

£2,499

Ships in 24 hours

12 2.80ct Round & Emerald Cut Lab Grown Diamond Trilogy Ring

From £187.42 per month

£2,499

Ships in 24 hours

19 2.92ct Brilliant Cut Lab Grown Diamond Solitaire Ring

From £187.42 per month

£2,499

Ships in 24 hours

20 2.92ct Round Cut Lab Grown Diamond Solitaire Ring

From £187.42 per month

£2,499

Three Stone Bezel Set Emerald Cut Yellow Diamond Pave Band Ring

From £185.63 per month

£2,475

Three Stone Trilogy Oval & Pear Cut Yellow Diamond Pave Band Ring

From £185.63 per month

£2,475

Three Stone Trilogy Asscher Cut Yellow Diamond Pave Band Ring

From £185.63 per month

£2,475

Three Stone Trilogy Emerald Cut Yellow Diamond Pave Band Ring

From £185.63 per month

£2,475

Three Stone Trilogy Marquise & Oval Cut Yellow Diamond Pave Band Ring

From £185.63 per month

£2,475

Three Stone Bezel Set Emerald Cut Blue Diamond Ring

From £183.75 per month

£2,450

Three Stone Bezel Set Emerald Cut Green Diamond Ring

From £183.75 per month

£2,450

Three Stone Trilogy Oval & Pear Cut Blue Diamond Ring

From £183.75 per month

£2,450

Three Stone Trilogy Oval & Pear Cut Green Diamond Ring

From £183.75 per month

£2,450

Three Stone Trilogy Asscher Cut Blue Diamond Ring

From £183.75 per month

£2,450

Three Stone Trilogy Asscher Cut Green Diamond Ring

From £183.75 per month

£2,450

Three Stone Trilogy Emerald Cut Blue Diamond Ring

From £183.75 per month

£2,450

Three Stone Trilogy Emerald Cut Green Diamond Ring

From £183.75 per month

£2,450

Three Stone Trilogy Marquise & Oval Cut Blue Diamond Ring

From £183.75 per month

£2,450

Showing 241–264 of 407 products

Exquisite Natural and Lab-Grown Diamond Rings

Unica Toi-et Moi Emerald & Asscher Cut Pink Diamond Ring

From £194.92 per month

£2,599

Unica Toi-et Moi Emerald & Asscher Cut Yellow Diamond Ring

From £194.92 per month

£2,599

Unica Toi-et Moi Emerald & Asscher Cut Blue Diamond Ring

From £194.92 per month

£2,599

Unica Toi-et Moi Emerald & Asscher Cut Green Diamond Ring

From £194.92 per month

£2,599

Unica Toi-et Moi Emerald & Asscher Cut Diamond Ring

From £194.92 per month

£2,599

Wedding Band

From £187.42 per month

£2,499

Ships in 24 hours

41 2.21ct Aquamarine Tension Set Ring

From £187.42 per month

£2,499

Ships in 24 hours

12 2.80ct Round & Emerald Cut Lab Grown Diamond Trilogy Ring

From £187.42 per month

£2,499

Ships in 24 hours

19 2.92ct Brilliant Cut Lab Grown Diamond Solitaire Ring

From £187.42 per month

£2,499

Ships in 24 hours

20 2.92ct Round Cut Lab Grown Diamond Solitaire Ring

From £187.42 per month

£2,499

Three Stone Bezel Set Emerald Cut Yellow Diamond Pave Band Ring

From £185.63 per month

£2,475

Three Stone Trilogy Oval & Pear Cut Yellow Diamond Pave Band Ring

From £185.63 per month

£2,475

Three Stone Trilogy Asscher Cut Yellow Diamond Pave Band Ring

From £185.63 per month

£2,475

Three Stone Trilogy Emerald Cut Yellow Diamond Pave Band Ring

From £185.63 per month

£2,475

Three Stone Trilogy Marquise & Oval Cut Yellow Diamond Pave Band Ring

From £185.63 per month

£2,475

Three Stone Bezel Set Emerald Cut Blue Diamond Ring

From £183.75 per month

£2,450

Three Stone Bezel Set Emerald Cut Green Diamond Ring

From £183.75 per month

£2,450

Three Stone Trilogy Oval & Pear Cut Blue Diamond Ring

From £183.75 per month

£2,450

Three Stone Trilogy Oval & Pear Cut Green Diamond Ring

From £183.75 per month

£2,450

Three Stone Trilogy Asscher Cut Blue Diamond Ring

From £183.75 per month

£2,450

Three Stone Trilogy Asscher Cut Green Diamond Ring

From £183.75 per month

£2,450

Three Stone Trilogy Emerald Cut Blue Diamond Ring

From £183.75 per month

£2,450

Three Stone Trilogy Emerald Cut Green Diamond Ring

From £183.75 per month

£2,450

Three Stone Trilogy Marquise & Oval Cut Blue Diamond Ring

From £183.75 per month

£2,450

Showing 241–264 of 407 products