Diamonds Factory

Diamonds Factory makes each piece with its own craftsmen and offers both natural and lab-grown diamonds, with the lab-grown route the cheaper of the two for a comparable stone. Designs can be customised across cut, setting style and metal, including white, yellow and rose gold or platinum. The company has been designing and manufacturing jewellery for more than three generations and sells into more than 70 countries, with diamonds described as ethically sourced under the Kimberley Process.

For buyers who want to see a ring first, there are showrooms across several cities, including Berlin, Milan and Paris. Shipping is free, returns run 30 days and each piece is backed by a lifetime guarantee.