Argyle Australian Champagne Diamond — 1.56 ct Round | C3 - Medium Champagne

Why we chose this stone

A stone over one and a half carats is already a significant find, and pairing that size with a C3 — the grade Argyle itself classes as Medium Champagne — makes this round brilliant a genuinely rare combination. The colour sits comfortably between the palest grades and the deeper cognac tones: warm enough to be unmistakably champagne, light enough to stay bright and easy to wear. The brilliant cut's dense facet pattern gives that tone plenty of room to move, breaking it into shifting flashes rather than one settled hue, so the colour stays lively across a stone this large. 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 permanently.

At 1.56ct, this is a true statement stone, and its Medium Champagne grade gives it a versatility that darker tones don't offer — distinctive enough to feel genuinely rare, restrained enough to suit almost any setting. With the mine now closed, a round brilliant this large in this classic mid-range colour is unlikely to be matched again.