2.51 Ct Old Mine Cut Fancy Yellow Natural Diamond

A 2.51-carat fancy yellow natural diamond in an old mine cut — the classic antique cutting style of the 18th and 19th centuries. Old mine cuts are recognized by their cushion-like shape, high crown, small table, and large open culet visible through the top of the stone. This example carries a warm fancy yellow body color, giving it a rich, honeyed tone that pairs naturally with the soft, broad light flashes characteristic of hand-cut antique faceting.

Old mine cut diamonds were shaped by hand long before modern precision tools, and each stone carries subtle irregularities that reflect the skill of the individual cutter. The fancy yellow color in this stone adds another layer of rarity — naturally saturated body color in antique cuts is uncommon, as most surviving old mine diamonds fall in the near-colorless to light tinted range. At 2.51 carats, this is a substantial stone with strong presence, well suited for a statement ring, a pendant, or as a centerpiece in a period-style jewelry setting.