Natural cushion diamonds whose GIA report records brown — a notation beside the colour letter, or a fancy grade where brown is the dominant colour — weighing 1.00 to 1.49 carats. The struck-through price on each card is the champagne discount: what a similar near-colourless (G–H) diamond of the same shape, clarity, cut and size lists for.
Step cuts show a champagne tint evenly, brilliants scatter it. Shape-by-shape counts and median prices from 2,822 stones at nine retailers.
Choosing a cushion cut champagne diamond: how crushed-ice and chunky faceting show or hide the warm tint, plus ratio, the culet and what the shape costs.