Coloured Diamonds

The Certified Diamond Network is proud to offer Australians handcrafted jewellery with some of the finest quality blue, yellow, black, champagne, cognac and pink Argyle diamonds that the world has to offer. We work with you to source a fancy colour stone that exceeds your expectations in value and visual beauty for diamond wedding rings and diamond solitaire engagement rings that are truly special.

Fancy yellow, orange, blue and pink argyle diamonds are known world-wide as extremely rare, and thus, are very valuable!

Unlike white stones, which still exist in nature in large quantities, fancy colour diamonds represent less than 1% of the quantity of loose diamonds manufactured globally, every year, and this quantity is steadily shrinking.

Stones from a Trusted Source

As proud members of the Jewellers Association of Australia & Gemmological Association of Australia, we believe in absolute transparency with any diamond or gemstone purchase. In order to classify NATURAL loose coloured diamonds, they are certified in a gemmological institute such as; GIA, HRD, GSL, or AUSCERT.

You can purchase a pink argyle diamond or any other colour of stone that we provide with complete confidence that you will be receiving fancy colour diamonds that are of the highest quality, and independently verified by one of the most stringent grading laboratories.

We can source Australian argyle and international fancy coloured stones that come in almost every colour of the rainbow. Let us open your eyes to some of the rarest, most in demand, and valuable in the world!

The price is affected by the 4Cs: Colour, Cut, Clarity and Carat Weight. Although, unlike white, fancy coloured and pink stones are priced for VERY different reasons.


Fancy coloured loose diamonds are cut and polished in a different manner than white stones. This is done in order to maximise weight and to emphasise the colour as much as possible.


Fancy coloured loose diamonds can appear as one primary colour; without any secondary hue, for example; fancy blue, fancy pink, etc.

When it appears as a single colour, the price will be considerably more expensive than a stone with a secondary hue, for example; Fancy Brownish Greenish Yellow, Fancy Orangey Pink or Fancy Greyish Blue.

The intensity grading system for fancy colour diamonds differ than that of white. Unlike white stones, which range from the letter D-Z, fancy coloured stones are graded by: light, fancy-light, fancy, fancy-intense, fancy-dark and fancy vivid. The stronger the colour, the higher the price!

Pink Diamonds

Pink argyle diamonds are the most desirable of all the fancy colour diamonds, and most of the loose pink diamonds are originally from the Argyle Mine in Western Australia.

Orange Diamonds

Pure orange stones are very rare, and most will appear as a combination of yellow and orange. Usually, this is either Fancy Yellow-Orange or Fancy Yellowish-Orange; and of course in stronger levels of intensity such as Fancy-Intense, Fancy-Deep and Fancy-Vivid. When the orange colour appears with no secondary hue, its price rises substantially.

Black Diamonds

Black has become very popular and trendy due to their low price and strong colour. Unlike other Fancy colours such as Blue and Pink Argyle diamonds, the beauty of Black is in their crystal pure colour. Black stones are divided into two main groups: Natural Black and heat-treated (heated in rough) Black diamonds.

Blue Diamonds

Blue diamonds range from: Light Blue, Fancy-Light Blue, Fancy Blue, Fancy-Intense Blue, Fancy-Deep Blue, Fancy-Dark Blue to Fancy-Vivid Blue. Loose blue stones are extremely rare, and as a result, their prices are very high.

Yellow Diamonds

Natural Yellow are the best known of the fancy coloured. The colour scale for white stones starts with the letter ‘D’, and ends with the letters “X-Y-Z???. These are the beginnings of the fancy yellow colour, due to its yellow shade (caused by atomic levels of Nitrogen when the raw crystal is formed). After “X-Y-Z???, we have Light Yellow, Fancy Light-Yellow, Fancy Intense-Yellow and Fancy Vivid-Yellow.

Argyle Diamonds

Since the end of the 19th century, small quantities of diamonds were found in Australia through gold prospecting. Then, 1969 saw the commencement of a systematic exploration of Western Australia, and on October 2, 1979, they were discovered in the Argyle volcanic pipe in the Kimberly Region.

Open pit mining began in 1985. The mine is owned by the Anglo-Australian mining giant, Rio Tinto.

The Argyle diamond mine is one of the world’s biggest suppliers. It yields about 80% brown , some 15% yellow hues, about 4% white and the remaining 1% are red to pink, green and blue hues.

Argyle Colour Chart

Argyle have their own colour grade which they use for their stones, below is the full list:

  • Purplish Pink – (PP): White, 9PP, 8PP, 7PP, 6PP, 5PP, 4PP, 3PP, 2PP, 1PP.
  • Pink – (P): White, 9P, 8P, 7P, 6P, 5P, 4P, 3P, 2P, 1P.
  • Pink Rose – (PR): White, 9PR, 8PR, 7PR, 6PR, 5PR, 4PR, 3PR, 2PR, 1PR.
  • Pink Champagne – (PC): PC1, PC2, PC3.
  • Blue Violet – (BL): BL1, BL2, BL3.
  • Red: Purplish Red, Red.

Since 1994, some 35 million carats have been produced in the Argyle mine every year, accounting for over one third of the world’s annual production.

Two unique features are prominent in argyle diamonds

1. Due to the more complex arrangements of atoms, they are harder than other diamonds (and that is also what lends them their deep colour).

2. Some 70% of the Argyle diamonds turn fluorescent blue when put under ultra-violet light.

30 Day Money Back Guarantee

We offer all customers a 30 day money back guarantee on all purchases made on pink diamonds, argyle diamonds and any other gemstone purchased.

Jewellery Designer – Edward Swaab

After selecting your special gemstone, you will then have the opportunity to work with Edward Swaab, award-winning designer and master craftsman.

Edward will sit down with you and design a diamond wedding ring, diamond solitaire engagement ring or another piece of handcrafted jewellery that is created to suit your personal taste and style. Not only will you have an individual piece, but you will also have peace of mind knowing that the ring is 100% handcrafted to world-class standards.

Contact us today to find out how you can come in for an obligation free consultation.