Champagne Old Mine Cushion Cut diamond resting on a dark green mineral specimen, showing a softly squared outline and a mosaic of pale gold, cream, white and darker reflective facets.
Natural champagne cushion cut diamond held between silver tweezers against a dark green background, with warm beige and golden tones broken by crisp white facet reflections.
Hand view of a 1.64ct natural champagne Old Mine Cushion Cut diamond from South Africa, showing its 7.51 × 6.28 mm face-up size and softly golden color.
Close-up movement of a 1.64 carat natural champagne diamond from South Africa, revealing its softly squared Old Mine Cushion Cut, warm golden-beige color and shifting facet reflections. Untreated with very strong blue fluorescence.
See the face-up scale and warm color of this 1.64ct untreated South African champagne diamond. Its Old Mine Cushion Cut creates an antique-inspired silhouette with lively, varied reflections—an individual center stone for a custom engagement ring.
Champagne Old Mine Cushion Cut diamond resting on a dark green mineral specimen, showing a softly squared outline and a mosaic of pale gold, cream, white and darker reflective facets.
Natural champagne cushion cut diamond held between silver tweezers against a dark green background, with warm beige and golden tones broken by crisp white facet reflections.
Hand view of a 1.64ct natural champagne Old Mine Cushion Cut diamond from South Africa, showing its 7.51 × 6.28 mm face-up size and softly golden color.
Close-up movement of a 1.64 carat natural champagne diamond from South Africa, revealing its softly squared Old Mine Cushion Cut, warm golden-beige color and shifting facet reflections. Untreated with very strong blue fluorescence.
See the face-up scale and warm color of this 1.64ct untreated South African champagne diamond. Its Old Mine Cushion Cut creates an antique-inspired silhouette with lively, varied reflections—an individual center stone for a custom engagement ring.

1.64CT Diamond: Champagne Old Mine Cushion Mix Cut

$5,740.00
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Specifications:

  • Gemstone: Diamond
  • Weight: 1.64 carats
  • Color: Champagne
  • Clarity: 
  • Shape & Cut: Old Mine Cushion Cut
  • Dimensions (mm): 7.51 x 6.28 x 4.34
  • Origin: South Africa
  • Fluorescence: Very Strong Blue
  • Treatment: None

In Natural Light

Warm champagne color moves through this 1.64 carat South African diamond in shades of pale honey, toasted cream, and soft golden beige. The color is subtle rather than saturated, allowing bright white reflections to break through the warmer body tone as the stone moves.

Its softly squared cushion outline has the gentle asymmetry and character associated with antique-style cutting. Against the hand, the warmth becomes especially apparent, while darker surroundings bring out stronger contrast between its golden facets and flashes of cool white light. The result feels luminous and distinctly old-world rather than perfectly uniform—a natural diamond with warmth, movement, and individuality.

The Lapidary’s Eye

The Old Mine Cushion Cut gives this diamond a deeper 4.34 mm profile and a lively arrangement of varied facets. Rather than the uniform sparkle of a modern brilliant, its reflections appear in broader, less predictable flashes that emphasize the stone’s antique character.

Its slightly elongated cushion proportions preserve a pleasing face-up presence while the softly rounded corners keep the silhouette relaxed. The interplay between champagne color and bright facet reflections is particularly successful here, giving the stone warmth without sacrificing visual energy.

A compelling center stone for an antique-inspired engagement ring or one-of-a-kind custom setting.

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