Calleija Couture jewellery Argyle coloured diamonds

The Australian brand Calleija was founded by John Calleija in 1984 and has already established itself as the preeminent specialist in the use of pink diamonds in jewellery I have found myself pleasantly surprised by the fact that Calleija has decided to diversify the palette of their jewellery by making use of coloured precious stones: juicy pink sapphires, aquamarine of unique size and colour, cabochon cut tanzanite and orange Mandarin garnet The Argyle mine will close in 2020, and if new deposits are not discovered, the pink diamonds can become history.

Now, you may understand why there is such a notable increase in interest in natural pink diamonds - and the jewellery which makes use of these stunning stones - in the global market; but it also explains why John Calleija has turned to other stones in his designs "This is an amazing heart shaped pink diamond from the Argyle Tender weighing.56 ct We were very lucky to have it, because they only release 50-60 diamonds per year for the tender, and we have a beautiful collection of them," John tells me about another 'Couture' ring.

"This diamond has a lot of life in it and, when mined in 2008, it became one of the best red diamonds to ever come out of the Argyle mine We highlighted its beauty with further pink diamonds as well as a touch of Argyle blue stones," says Calleija's founder Even if we may no longer be seeing many new Argyle pink diamonds, Calleija will no doubt find new sources of inspiration and continue to create investment worthy collectible jewellery. Source