When you want a beautiful and unique diamond on its own or set in a special piece of jewellery, there’s no going past extraordinary Argyle diamonds. These special stones come from the specific Rio Tinto Argyle mine in Western Australia. They’re so unique that there is a separate grading system for the notorious pink diamonds that come from this region as well as a unique colour chart.
What Makes Argyle Diamonds So Special?
The unique composition of Argyle diamonds is attributed to a volcanic pipe made of olivine lamproite, which is commonly referred to as the Argyle pipe. Due to an eruption, minerals such as zeolite, micas, kaolinite and clays interacted with the diamonds during their formation.
Most Argyle diamonds contain small amounts of nitrogen impurities, but the majority of their colour is due to structural defects of the crystal lattice. Due to their unique composition and geography, Argyle diamonds are rare and elusive, with Argyle pink diamonds being the rarest of them all.
The Extra Special Argyle Pink Diamond
While some of the diamonds from Argyle are pink, not all of them are. Pink diamonds are extremely rare. Even so, the Argyle mine supplies over 90 per cent of the world’s pink diamonds. However, only one in every two and a half million tons of ore processed results in a pink diamond. As a result, Argyle pink diamonds are highly sought after.
While Argyle diamonds have a distinct colour, it’s their prestige that makes them particularly valuable compared to other pink diamonds. The rarity of colour is the most important pricing factor for colour diamonds and pink is one of the rarest and probably the most popular.
Argyle Diamond Intensity Levels
While the 4Cs (Colour, Clarity, Cut and Carat) apply to Argyle diamonds as much they do to other diamonds, Argyle diamonds are also graded using their own system. The pink diamonds are divided into four categories: PP (Purplish Pink), P (Pink), PR (Pink Rosé) and PC (Pink Champagne).
Then they are graded based on their color intensity ranging from 1 to 9. The Argyle pink diamonds found in the mine are usually more of a bubblegum-like pink tone. Red is the rarest colour of Argyle diamond.
Argyle Diamond Prices
To assess the price and value of Argyles, the purity of color is a large component. Most diamonds have at least one secondary color, so pure Argyle Diamonds are considered extremely rare and valuable. The higher the intensity or strength of the color, the more expensive the stone.
Between the low supply, high demand and impending closure of the Argyle mine at the end of the year, Argyle diamonds are likely to continue to feel pressure and prices are expecting to soar.
Argyle’s limited supply and the popularity of pink diamonds are only part of the puzzle with their popularity building from social media popularity and aesthetic prowess most recently maintaining product desire.
Your Trusted Source for Argyle Diamonds
Represent Western Australia with a precious Argyle diamond in your next engagement ring or piece of jewellery. At Hope Diamonds, we are one of Australia’s only diamond shops to offer such an extensive collection of Argyle diamonds. Explore our range or to discuss a bespoke piece, get a quote or for any other information, call us today on 1300 67 57 87 or contact us online.