Natural diamonds, understood properly
What we look for, how we grade it, and why buying through Choice Diamonds is different — for private clients and the jewellery trade alike.
The 4Cs
Every polished diamond we grade is assessed against these four pillars — the internationally recognised standard for describing a diamond's quality.
Precision of the facets
How well a stone is proportioned and finished — the single biggest factor in a diamond's brilliance.
From colourless to fancy
Graded on a scale from colourless through to warmer tones, or rare fancy colours.
Internal characteristics
The presence, size and position of natural inclusions, assessed under magnification.
Weight, not size alone
A diamond's weight — one factor among several that determine its overall value.
Fancy colour & fancy shape diamonds
Alongside classic white diamonds, we work closely with fancy colour stones — yellows, champagnes and browns among them — as well as fancy shapes cut to superior ratios and makes.
These are specialist stones, and we treat them as such: each one graded, understood, and matched to the right hands.
GIA-certified, every time
Every stone we handle is assessed with reference to internationally recognised grading standards, including GIA reporting — giving buyers and jewellers alike the confidence of a properly documented stone.
Sourcing rare, exceptional diamonds
Investment-quality diamonds come down to a combination of exceptional cut, colour and clarity — often in fancy colour or larger stones, where genuine rarity starts to matter as much as the 4Cs on paper.
Finding those stones takes a global network built over decades, not a catalogue. We're happy to talk you through what to actually look for.
Top-made diamonds, cut to EX EX EX
We supply the jewellery trade throughout South Africa with excellent-cut, excellent-polish, excellent-symmetry (EX EX EX) diamonds, and fancy shape diamonds of superior ratios and makes.
For jewellers, that means consistent quality, honest grading, and a supplier who doesn't cut corners on the stones that carry their name.
Buying through Choice Diamonds
No showroom pressure, no scripted upsell — just a straightforward assessment of the stone in front of you, from people who've spent 20 years learning to tell the difference.
Direct access
You deal with the person grading the stone, not a salesperson relaying information secondhand.
Documented, not just described
Grading referenced against recognised standards, so what you're told matches what's on paper.
No pressure to decide
A significant purchase deserves time. We'd rather you were certain than quick.
Behind the loupe
A glimpse into the day-to-day craft of grading, setting and finishing polished diamonds.
Frequently asked questions
Are your diamonds certified?
Yes — our stones are assessed with reference to internationally recognised grading standards, including GIA reporting, so you know exactly what you're buying.
Do you supply individual jewellers or only large orders?
We work with jewellers of all sizes, supplying both individual stones and parcels to suit what a client needs.
What makes a diamond "investment-quality"?
Broadly, exceptional cut, colour, clarity and rarity — particularly in fancy colour or larger stones. We're happy to talk you through what to look for.
Can I sell a diamond or piece of jewellery to Choice Diamonds?
Yes. Alongside supplying the trade, we purchase second-hand and investment diamonds and jewellery directly from the public. See our About page for more.
Talk to our team
Whether you're a jeweller looking to source stones, or simply curious — we're happy to help.