Argyle Australian Champagne Diamond — 0.66ct Cushion Cut| C3 - Light Champagne

Why we chose this stone

At C3, colour reads as clearly champagne without ever feeling heavy — a light, straw-gold tone that suits this 0.66ct cushion cut well. The cushion's rounded corners and mixed facet pattern scatter that colour into small, shifting pockets of light rather than one flat wash, so the stone stays bright and lively even at a more restrained grade. It's a balance that tends to appeal to buyers who want their Argyle diamond's rarity and provenance without a bold colour statement dominating the design. It comes from the East Kimberley region of Western Australia, mined before the Argyle pipe's closure ended production of these diamonds for good.

At 0.66ct, this is a versatile size — substantial enough to work as a centre stone in a simpler setting, or as a striking accent alongside white diamonds. Its C3 grade keeps it easy to wear across different metal tones, and like every Argyle stone, it comes from a source that will never be replenished.