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.

Sort by

  • Sold out
Round Brilliant Cut Diamond. 0.2030cts VS2 Brown (ECG) L Round Brilliant Cut Diamond. 0.2030cts VS2 Brown (ECG) L EGL REPORT
Round Brilliant Cut Diamond 0.2030cts VS2 Brown (ECG) L
R 1,800.00
R 1,800.00
  • Sold out
A single princess-cut radiant diamond shown in a clean studio shot against a solid white background. Princess Cut Diamond. 0.1900cts VVS2 BROWN (ECG) J EGL Report
Princess Cut Diamond. 0.1900cts VVS2 BROWN (ECG) J
R 2,000.00
R 2,000.00
Black Round Brilliant Cut Diamond. 1.2000cts Black Round Brilliant Cut Diamond. 1.2000cts Grading Report
Black Round Brilliant Cut Diamond. 1.2000cts
R 10,000.00
R 10,000.00
Close-up of a round diamond with a white background Round Brilliant Cut Diamond. 1.0210cts SI2 S Diamond certification card with EGL South Africa logo and diamond details.
Round Brilliant Cut Diamond 1.0210cts SI2 S
R 19,500.00
R 19,500.00
Round Brilliant Cut Diamond 0.3200cts SI2 T Round Brilliant Cut Diamond 0.3200cts SI2 T
Round Brilliant Cut Diamond 0.3200cts SI2 T
R 4,700.00
R 4,700.00
Round Brilliant Cut Diamond 0.9810cts VS1 Fancy Yellow Diamond certification card with E.G.L. logo and diamond details on a light blue background
Round Brilliant Cut Diamond 0.9810cts VS1 Fancy Yellow
R 28,300.00
R 28,300.00
A heart-shaped brilliant-cut diamond shown on a clean white background. Diamond certification card with EGL logo and diamond details on a blue background
Heart Shape Diamond
R 24,500.00
R 24,500.00
A single princess-cut radiant diamond shown in a clean studio shot against a solid white background. Princess Cut Diamond. 0.563cts VS2 D
Princess Cut Diamond. 0.563cts VS2 D
R 12,500.00
R 12,500.00
Black Round Brilliant Cut Diamond. 2.1160cts Black Round Brilliant Cut Diamond. 2.1160cts
Black Round Brilliant Cut Diamond. 2.1160cts
R 29,000.00
R 29,000.00
Round Brilliant Cut Diamond. 1.31cts E VS2 Round Brilliant Cut Diamond. 1.31cts E VS2 GIA Report
Round Brilliant Cut Diamond 1.31cts E VS2
R 71,400.00
R 71,400.00
Emerald Cut Diamond. 1.01cts F VVS1 GIA diamond grading report with detailed specifications and diagrams.
Emerald Cut Diamond 1.01cts F VVS1
R 65,700.00
R 65,700.00
0.907ct round brilliant cut EGL Certified Diamond South Africa, F colour Diamond appraisal report with EGL South Africa logo on a blue background
Round Brilliant Cut Diamond 0.907ct F
R 19,600.00
R 19,600.00
0.916ct round brilliant cut Brown Diamond South Africa EGL South Africa diamond grading label with diamond details on a blue background
Round Brilliant Cut Diamond 0.916ct SI3
R 14,200.00
R 14,200.00
Close-up of a round diamond with a white background Round Brilliant Cut Diamond. 1.1260cts Q SI2 EGL Certificate
Round Brilliant Cut Diamond 1.1260cts Q SI2
R 11,700.00
R 11,700.00
A single princess-cut radiant diamond shown in a clean studio shot against a solid white background. Diamond certification card with EGL logo and diamond details on a blue background
Princess Cut Diamond. 0.73cts I VS2
R 13,600.00
R 13,600.00
  • Sold out
Close-up of a round diamond with a white background Round Brilliant Cut Diamond. 0.1780cts L (ECG) SI3 EGL Report
Round Brilliant Cut Diamond 0.1780cts L (ECG) SI3
R 950.00
R 950.00