gemstones

The Many Colours of a Diamond

Last month, Australian miners in Angola unearthed a rare, pure pink diamond, believed to be the largest found in 300 years. Dubbed The Lulo Rose, it weighed in at a whopping 170 carats!

For context, coloured diamonds represent only 0.01% of diamonds mined in the world.

“While whites are still the most popular, there are a whole rainbow of diamonds to be discovered – yellow, pink, orange, blue, green, purple, even black or red,” says Matthew Ely.

Similar diamonds have been bought and sold for tens of millions of dollars in the past. The most expensive was the 59.6ct ‘Pink Star’, which sold at a Hong Kong auction in 2017 for US$71.2 million (more than AU$102 million).

So… white or fancy coloured? Which is right for you? And what makes each diamond colour so unique?


18ct White Gold & Diamond Ring
18ct White Gold & Diamond Ring

White Diamonds

Still the most popular colour for engagement, wedding or eternity rings, ‘white’ diamonds are perhaps more accurately referred to as ‘colourless’. Most have a natural tinge, which is identified on the GIA industry-standard diamond colour grading scale, ranging from D (diamonds with a pure, colourless appearance), through to Z (diamonds with a strong yellow tinge).

As for the shape, “round brilliant cuts are still incredibly popular, with ovals taking second place, followed by emerald cuts,” says Matthew. “But it’s all up to individual taste!”

IMAGE (LEFT): 
18ct White Gold & Diamond Ring

Yellow diamond and white diamond bracelets
18ct White Gold, White & Yellow Diamond Bracelets

Yellow Diamonds

Yellow diamonds account for about 60% of all coloured diamonds, and get their colour from the presence of nitrogen in their crystalline structure. The more nitrogen, the more intense the colour.

“Yellow seems to be a bit of a flavour of the moment, and this trend will definitely increase into spring,” says Matthew.

“You get some incredible colours in the palette – from gentle yellows, which are really beautiful and perfect for everyday wear, to the super intense and incredibly rare Zimmi yellow diamonds, mined from the Zimmi region of Sierra Leone. The colour of these Zimmi diamonds is so saturated that it’s like a fluoro yellow; a diamond highlighter.”

IMAGE (RIGHT):
18ct White Gold, Cushion Cut Yellow & White Diamond Bracelet
18ct White Gold, Yellow & White Diamond Bracelet

18ct Rose Gold & Platinum, Argyle Pink & White Diamond Ring
18ct Rose Gold & Platinum, Argyle Pink & White Diamond Ring

Pink Diamonds

Pink diamonds, like the 170-carat Lulo Rose recently discovered in Angola, have seen a sharp rise in value over the past two years.

This follows the 2020 closure of Rio Tinto’s Argyle pink diamond mine in Western Australia, which was previously responsible for 90% of the world’s pink diamonds, not to mention the most vivid and high-quality gemstones in existence.

“Pink diamonds have absolutely skyrocketed. There are very few Argyle pinks left, and these will increasingly be found only in private collections. It’s the art of the diamond world,” says Matthew.

“We still have a limited selection of Argyle pinks available, both as individual gemstones and set into custom made rings, earrings and pendants. More than ever before, they are true collector’s items.”

IMAGE (LEFT): 18ct Rose Gold & Platinum, Argyle Pink & White Diamond Ring

Blue Diamonds

“Similar to Argyle pinks, blue diamonds – particularly fancy vivid blues – are often favoured by collectors, investors and diamond enthusiasts. They are generally considered to be the rarest of all coloured diamonds,” says Matthew.

“Their colour comes from traces of boron, and can range from a faint, pale blue to a really vivid, deep blue. They’re not colour treated or enhanced; it’s all natural!”


Small pink, orange, yellow, green and blue diamonds.
Small pink, orange, yellow, green and blue diamonds, currently in store at the Matthew Ely Jewellery boutique.

Green Diamonds

Like other fancy colours, natural green diamonds are incredibly rare.

While not an ‘everyday request’, these gemstones have been thrown back into the spotlight thanks to the green and white diamond engagement ring of Jennifer Lopez!

The colour of most green diamonds comes from natural radiation and can range from an olive or khaki green to the rarest turquoise, emerald and peacock shades.

“We’ve got a few tiny ones – both greens and blues – currently in store, which can be incorporated into custom made pieces. This is what you would usually see with the rarer fancy-coloured diamonds. Of course, we can also source bigger stones for statement (and colourful) diamond jewels!”

So… which diamond would you choose?

IMAGE (LEFT): Small pink, orange, yellow, green and blue diamonds, currently in store at the Matthew Ely Jewellery boutique.

Did you know: coloured diamonds represent only 0.01% of diamonds mined in the world. So - white diamonds, pink diamonds, yellow diamonds, green diamonds or blue diamonds? What makes each colour so unique? And which one is right for you?

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