Our loose gemstone service at Hatton Garden Bespoke Jewellery sources sapphires, rubies, emeralds, aquamarines, tourmalines, spinels, and rarer fancy gems from supply chains we trust. Every stone is selected to your brief and assessed for colour, clarity, cut, and origin, so a commission begins with a stone we would happily wear ourselves.
Precious stones we work with regularly include blue sapphires (Ceylon, Kashmir, Madagascar), fancy sapphires (pink, yellow, padparadscha), rubies (Burmese, Mozambican, Thai), emeralds (Colombian, Zambian), and aquamarines from Brazilian and African sources.
Semi-precious and collector stones include tourmaline (including Paraiba), spinel, tanzanite, topaz, peridot, garnet (including tsavorite and demantoid), morganite, alexandrite, and cultured pearls. For an unusual commission, we also source rare stones to order: demantoid from the Ural Mountains, unheated Kashmir sapphires, Burmese pigeon-blood rubies, and Colombian muzo emeralds.
Laboratory reports and ethics. An independent laboratory report is available, where applicable, on significant centre stones from leading coloured-stone laboratories such as Gubelin, SSEF, GIA, GCS, or AGL. Laboratory reports confirm natural origin, disclose treatments, and for sapphires and rubies often specify country of origin, which can affect value considerably. We buy through reputable trade suppliers and request provenance documentation where it is available.
Hardness and durability. Not every beautiful gemstone suits every setting. For engagement rings and other daily-wear pieces we recommend stones at 7.5 or higher on the Mohs scale: sapphire (9), ruby (9), spinel (7.5 to 8), aquamarine (7.5 to 8), topaz (8). Tourmaline (7 to 7.5) falls just short of that. For gemstone engagement rings we advise a protective bezel or halo setting on softer stones such as emerald and tourmaline, to guard the crystal against knocks. Opal, pearl, and turquoise are best kept for earrings, pendants, and dress rings.
How to start a gemstone commission. Tell us the carat range, colour you have in mind, origin if it matters, and budget. You then choose from stones we have sourced to your brief, online, and we design the setting around the exact dimensions of the one you pick. Contact our team to begin, or browse completed commissions in our gallery.
