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30 Day no quibble return policy
100% Ethically sourced diamonds
Safe and secure shopping with Brillian
Brillian Accreditations

Producing Jewellery With The Highest Quality Diamonds


The beauty of purchasing a diamond engagement ring, necklace or earrings from Brillian is that you can take advantage of our low prices but still receive a product that is of the highest quality.

We want you to be happy with your piece of jewellery which is why we encourage you to book an appointment with one of our experienced sales managers in our luxury Hatton Garden showroom.

You can also be reassured that every single diamond we sell has been carefully graded by one of four internationally renowned gemological institutes: Gemmological Institute of America (GIA), International Gemological Institute (IGI), HRD Antwerp and the Antwerp Gemological Institute (AGI).

When you receive your diamond engagement ring it will be accompanied with a certificate from one of these institutes that states the size, clarity and cut of the diamond.

At Brillian we maintain the very highest ethical standards and are fully committed to the Kimberly Process which states that we never buy, sell or handle conflict diamonds. If you would like more information about you can find out more here.

Why Trust Brillian?

Brillian have many years experience in sourcing the highest quality diamonds and supplying the most beautiful jewellery at the best prices. Here are some more good reasons to trust us:

  • Highly trained and experienced gemologists on-hand to advise and answer your questions
  • We offer a 30 day full money back guarantee on all items
  • We send all items by Royal Mail Special Delivery, which are insured and can be tracked online
  • We never buy, sell or handle 'Conflict Diamonds'
  • Your items are insured by us whilst in transit
  • Your details will never be passed on to any third party