Argyle Australian Champagne Diamond — 0.33ct Oval Cut| C5 - Medium Champagne

Why we chose this stone

This 0.33ct oval cut sits at the smaller end of the range but still carries its C5 grade with real conviction — a deep, golden tone that reads clearly regardless of carat weight. The oval's elongated outline and brilliant-style faceting scatter that colour into small, shifting flashes as the stone moves, giving it a liveliness that keeps the depth of the grade from ever feeling static or heavy. Its shape also lends a practical advantage: the length-to-width ratio typical of ovals makes the stone appear larger on the hand than its actual weight would suggest, useful when working with a smaller diamond that still needs to hold visual weight. It comes from the East Kimberley region of Western Australia, the source of every Argyle diamond mined before the pipe's closure ended that supply for good.

At 0.33ct, this is a compact stone that punches above its size, offering genuine C5 depth of colour in a shape well suited to delicate settings, accent work, or a smaller design where the champagne tone still needs to carry the piece. It's a rare stone from a source that's now permanently closed, regardless of how modest its carat weight.