Diamonds Factory is a jewellery brand offering made-to-order designs and a broad collection of diamond and gemstone pieces, with products available in the UK and other markets. Its range includes engagement rings, wedding bands, diamond rings, earrings, pendants, necklaces and bracelets, as well as gemstone jewellery and gift options. Customers can choose from styles such as solitaire, halo, vintage and eternity designs, with options in platinum, white, yellow and rose gold, silver and mixed metals. The selection features natural and lab-grown diamonds, moissanite and coloured gemstones, including sapphires, rubies, emeralds and pearls.

The brand describes its jewellery as handmade by experienced craftspeople and finished with attention to detail. It also offers custom design services, ring resizing within 30 days, jewellery care and valuation services, and in-person assistance at its showrooms. Diamonds Factory provides educational guides covering diamonds, gemstones, metals, ring styles and sizing to help customers make informed choices. Its stated customer benefits include a lifetime guarantee, free 30-day returns and a lowest-price guarantee.