As South Africa’s premium diamond and bespoke diamond jewellery supplier, we pride ourselves in delivering the highest quality at competitive industry rates. Specializing in uniquely commissioned diamond engagement rings, as well as investment diamonds, with Bosco a diamond truly is forever.


We are partnered with a number of boutiques, ethical mining operations that have access to high-quality loose diamonds for your collections or investments.

Ethically sourced
Bosco Diamonds has a zero-tolerance policy toward the conflict diamond trade and because we are so actively involved in the sourcing and polishing of our goods, we have the opportunity to proudly promote and enforce the standards established by the Kimberley Process, on a ‘grassroots’ level. We consider this to be the single most important attribute of the business.

GIA certified
All Bosco Diamonds inventory is certified by the world-leading gemological laboratory, known as the Gemological Institute of America (GIA).

GIA tests every material submitted to determine whether it is a natural diamond or synthetic diamond, and discloses any known treatments discovered during analysis.


No matter the special occasion, we can assist you in designing and creating a bespoke piece of jewellery. In addition to our custom engagement rings, Bosco Diamonds makes custom jewellery for special occasions such as anniversaries, graduations and birthdays, all of which are in either platinum, 18kt yellow gold, white gold or rose gold.