Castellane ring setting bespokesettings Black diamonds are made of

Black diamonds are made of carbon

depending on how it is worn

33ct of ethically sourced rosecut pastel Umba sapphires from the Umba Valley in Tanzania (this gemstone is unheated/natural)

There is only one ready-to-ship ring (finished photographed ring)

sizing: we can create this ring in sizes 3–12 (we recommend using a ring sizer to obtain your correct ring size prior to purchase for best fit)

Castellane ring setting bespokesettings Black diamonds are made ofPlease note: we do not sell the settings by themselves as they're created to order based on a loose gemstone chosen from the shop. To have a ring made, please select a loose gemstone from the shop and then a ring setting this will equal the full cost of the ring that will be made especially for you by hand in our workshop. Please note: we can special order many types of gemstones in a variety of shapes sizes including: Certified lab grown diamonds,