• Face-up view resting on a finger, displaying a D-shaped, very dark brown gemstone with geometric facets against a pale background.
  • Dark brown D-shaped faceted gemstone resting flat on a fingertip, showing strong light and dark contrast across its surface.
  • Angled face-up view of a dark, D-shaped gemstone sitting on a finger, catching bright light reflections on its triangular facets.
  • Hand-held D-shaped gemstone pinched between two fingers, showing faceted edges and deep brown color under bright lighting.
  • Dark, D-shaped cut gemstone gripped between thumb and forefinger, with its large top facet fully reflecting a bright, white light.
  • D-shaped dark gemstone lying flat on a finger, with a large, bright central facet reflection and dark surrounding step-like edges.
  • Tilted side-angle view of a D-shaped, dark brown gemstone held between fingers, highlighting the cut pattern on its curved edge.
  • Very dark, D-shaped faceted gemstone pinched between fingers, angled to show the contrasting light reflections on its edge facets.
  • Profile view of the thick dark-brown D-shaped diamond held between two fingers, showing its thickness and side profile.
  • Close-up of a dark brown half-moon shaped gemstone held by fingers, showing deep internal color and small visible surface details.
  • Close-up of a dark brown D-shaped gemstone resting on fingers, revealing subtle surface characteristics across its large flat facet.
1 12

Natural Fancy Dark Cognac Diamond, D-Shape Half Moon, 3.27 ct, 9.95 × 8.49 mm, Double-Sided Faceting, Untreated

Natural Fancy Dark Cognac Diamond, D-Shape Half Moon, 3.27 ct, 9.95 × 8.49 mm, Double-Sided Faceting, Untreated

$1,632.00 USD
$1,632.00 USD
Sale Sold out
Taxes included. Standard shipping · Estimated delivery in about 2 weeks after dispatch.

BS0044

Low stock: 1 left

Import duties covered.

Standard: about 2 weeks after dispatch. Express: estimated 3–7 days after dispatch. Processing time is separate.

Returns: notify us within 14 days of receipt. Policy conditions and custom-order exclusions apply.

Shipping and returns details Refund policy

This exact 3.27 ct natural Fancy Dark Cognac diamond has a D-shaped outline with one flat edge and one rounded arc. It measures 9.95 × 8.49 × 4.24 mm and is faceted on both sides. It is seller-assessed as untreated; no independent laboratory report is included.

Item Details

  • Material: Natural Diamond
  • Natural or lab-grown: Natural
  • Weight: 3.27 ct
  • Measurements: 9.95 × 8.49 × 4.24 mm
  • Shape: D Shape, flat edge with rounded arc
  • Cutting style: Faceted on both sides
  • Color: Fancy Dark Cognac, seller-described
  • Clarity: Seller-assessed I3
  • Treatment: Seller-assessed as untreated
  • Report: No independent laboratory report included
  • Faceting origin: Surat, India
  • Quantity: 1 piece
  • SKU: BS0044

What This Stone Is

A geometric diamond cut to a D profile, with one flat edge and one rounded arc. It is a single stone, not a matched pair, so it works as a standalone feature rather than an accent. The shape is sometimes searched as half moon style, though the proportions here are its own.

The Color

This stone reads near black in normal room lighting, holding a dense, low-contrast body. In stronger or direct light the cognac brown undertone comes forward. The shift between the two states is the character of the stone, not a flaw.

Cut & Brilliance

Faceting runs on both sides, giving two distinct face-up options from one stone. That doubles the design flexibility in CAD and setting work, since the jeweller can choose which face presents. It is a cutter's shape rather than a standard commercial one.

Clarity — An Honest Note

This stone is seller-assessed I3. Heavy inclusions and a semi-translucent appearance are visible; buyers should review the gallery. It is not a clean stone and is not sold as one.

Who This Stone Suits

Built for designers working on a one-off piece where the shape leads the design. It suits a pendant, a sculptural ring, or a feature setting that can carry a large dark geometric stone. If you need a matched pair or a calibrated shape, this is not that stone.

Exact-Stone Media

All product photographs and the video show this exact stone in varied close and scale views. Color and reflections can vary with lighting, viewing angle, surroundings and screen settings. Review the complete gallery before ordering.

Shipping

The stone is in stock and normally prepared for dispatch from Bangkok within 1–3 business days. Shipping services and delivery estimates are shown at checkout.

About Brahma Diam

Brahma Diam Co., Ltd. is based in Bangkok. We facet colored gemstones in our Bangkok facility and diamonds in our Surat facility. Our work includes precision fancy cuts, calibrated production, custom cutting, and recutting.

View full details