Cape Diamonds Review: A Large Online Diamond Catalogue in South Africa
Last updated: June 2026 | Independently reviewed by Diamond Guide SA
Cape Diamonds is a Cape Town online diamond retailer with one of the largest GIA-certified online catalogues in the country, more than 100,000 loose stones available through a real-time diamond selector tool. Cape Diamonds stocks both natural and lab-grown diamonds, provides a 14-day refund guarantee, and offers insured shipping across South Africa. The trade-off with any browse-online model is that you buy a stone you cannot inspect in person, and the price still carries retail margin, so it is worth comparing the same budget against Prodiam's direct manufacturer pricing.
Cape Diamonds: One of South Africa's Largest Online Diamond Catalogues
Cape Diamonds runs a real-time online diamond selector that gives buyers access to more than 100,000 GIA- and IGI-certified loose diamonds, one of the largest online catalogues in the country. Buyers can filter by cut, clarity, colour, carat weight, shape, and certification body, and view detailed specifications and pricing for each stone. The breadth of choice suits buyers who want to browse a wide range from home. The trade-off worth remembering is that an online listing is a stone you cannot inspect in person, and the price still carries retail margin, so it is sensible to compare the same budget against a direct manufacturer before you commit.
Cape Diamonds operates on a wholesale buying model, sourcing diamonds from global suppliers at competitive rates. While their prices are strong for the South African market, buyers seeking the absolute lowest prices on natural GIA-standard diamonds should also get a quote from Prodiam, whose direct mine sourcing and in-house manufacturing delivers prices that are among the most competitive in South Africa.
What Makes Cape Diamonds Stand Out?
100,000+ GIA/IGI-certified loose diamonds with a real-time online selector tool.
Filter the catalogue by the 4Cs, shape, and certification body before you enquire.
Full range of both natural (GIA) and lab-grown (IGI) certified diamonds.
Free insured delivery across South Africa with a 14-day refund guarantee.
Frequently Asked Questions About Cape Diamonds
Is Cape Diamonds a legitimate dealer?
Yes. Cape Diamonds is an established Cape Town online diamond dealer offering GIA- and IGI-certified diamonds, with a large online catalogue and a 14-day refund guarantee. As with any online purchase, you are buying a stone you cannot inspect in person, so it is worth comparing the quoted price against a direct manufacturer before you commit.
Does Cape Diamonds sell lab-grown diamonds?
Yes. Cape Diamonds offers both natural (GIA-certified) and lab-grown (IGI-certified) diamonds through their online platform. Their diamond selector tool allows you to filter by type, making it easy to compare natural and lab-grown options side by side. Lab-grown diamonds are typically 60-80% less expensive than equivalent natural stones.
How does Cape Diamonds compare to Prodiam?
Cape Diamonds offers a large online catalogue (100,000+ stones) you can browse and filter from home. Prodiam offers lower prices through direct SA mine sourcing and in-house manufacturing. If price is your top priority, get a quote from Prodiam. If browsing a wide online selection from home matters most, Cape Diamonds is worth a look.
Does Cape Diamonds ship nationwide?
Yes. Cape Diamonds provides free insured shipping across South Africa. All packages are fully insured during transit. They also offer a 14-day refund guarantee with free insured return shipping if you are not satisfied with your purchase.
Visit Cape Diamonds
Browse 100,000+ certified diamonds with free insured shipping.
Visit capediamonds.co.za