Certified Diamonds

Miller Gold & Co offers a curated selection of certified loose diamonds in South Africa. Whether you are designing a custom engagement ring or adding to your collection, our diamonds are selected for brilliance, cut and quality.

Our loose diamond collection includes:

Round brilliant cut diamonds • Princess cut diamonds • Oval and pear cut diamonds • GIA and EGL certified stones • Fancy yellow and coloured diamonds

Every diamond is certified and selected by Sindy Miller, our GIA-qualified gemologist. We offer stones across a wide range of carat weights and budgets. Pair your diamond with our bespoke ring design service to create your perfect piece.

We deliver across South Africa. Contact us to discuss your requirements.

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Round Brilliant Cut Diamond 0.4650cts SI3 Brown (ECG) M Round Brilliant Cut Diamond 0.4650cts SI3 Brown (ECG) M
Round Brilliant Cut Diamond 0.4650cts SI3 Brown (ECG) M
R 3,200.00
R 3,200.00
Round Brilliant Cut Diamond 0.5000cts SI3 Brown (ECG) M Round Brilliant Cut Diamond 0.5000cts SI3 Brown (ECG) M
Round Brilliant Cut Diamond 0.5000cts SI3 Brown (ECG) M
R 4,200.00
R 4,200.00
Oval Cut Diamond Fancy Purplish Pink on white background Oval Cut Diamond 0.3930cts I3 Fancy Purplish Pink
Oval Cut Diamond 0.3930cts I3 Fancy Purplish Pink
R 10,000.00
R 10,000.00
A single pear-cut diamond shown in a centered studio-style rendering on a light gray background. Pear Shape Diamond 0.3140cts SI2 H
Pear Shape Diamond 0.3140cts SI2 H
R 5,000.00
R 5,000.00
Round Brilliant Cut Diamond 0.7410cts SI1 C4 Medium Champaigne Round Brilliant Cut Diamond 0.7410cts SI1 C4 Medium Champaigne
Round Brilliant Cut Diamond 0.7410cts SI1 C4 Medium Champaigne
R 15,000.00
R 15,000.00
Pear Shape Diamond 0.2040cts I3 Fancy Purplish Pink Pear Shape Diamond 0.2040cts I3 Fancy Purplish Pink
Pear Shape Diamond 0.2040cts I3 Fancy Purplish Pink
R 10,000.00
R 10,000.00
  • Sold out
Radiant Cut Diamond Vivid Fancy Purple Pink on white background Radiant Cut Diamond 0.2060cts I3 Vivid Fancy Purple Pink
Radiant Cut Diamond 0.2060cts I3 Vivid Fancy Purple Pink
R 7,000.00
R 7,000.00
A single princess-cut radiant diamond shown in a clean studio shot against a solid white background. Princess Cut Diamond 0.510cts SI1 I DIA Certification
Princess Cut Diamond 0.510cts SI1 I
R 6,500.00
R 6,500.00
A single princess-cut radiant diamond shown in a clean studio shot against a solid white background. A diamond certificate report card for a princess-cut lab-grown diamond from E.G.
Princess Cut Diamond 0.4620cts VS2 J
R 6,000.00
R 6,000.00
Pear Shape Diamond 0.1500cts SI3 Light Fancy Brownish Yellow Pear Shape Diamond 0.1500cts SI3 Light Fancy Brownish Yellow
Pear Shape Diamond 0.1500cts SI3 Light Fancy Brownish Yellow
R 2,500.00
R 2,500.00
  • Sold out
Oval Cut Diamond 1.9960cts I1 Brownish Grey (ECG) Q South Africa Gemstone & Diamond Report card for an oval-cut, brownish-grey diamond, showing details like weight, clarity, and shape alongside certification logos and gemstone profile diagrams.
Oval Cut Diamond 1.9960cts I1 Brownish Grey (ECG) Q
R 11,000.00
R 11,000.00