6.13 Ct. Bi Color Ametrine from Madagascar

This transparent 6.13 carat marquise bi color ametrine from Madagascar offered by The Natural Gemstone Company is cut to dimensions 14.69 x 11.22 x 8.11 mm, with a mixed brilliant cut and an excellent polish. The stone displays medium color intensity with distinct purple and warm golden zones typical of fine ametrine material, and clarity evaluated as very slightly included at eye level. The mixed brilliant faceting employs a brilliant crown to maximize scintillation and dispersion, paired with a carefully proportioned pavilion that uses kite and triangular facets to optimize light return and minimize dark areas. The marquise is relatively broad for the shape, with a length to width ratio of approximately 1.31, a proportion that produces a fuller visual face up area and reduces the prominence of a traditional bow tie while maintaining crisp pointed terminations. Heat treatment has been applied to stabilize and enhance the bi color zoning, and hand finishing has produced facet junctions that show consistent symmetry and excellent polish across all planes.

For a custom setting the bi color nature of this ametrine rewards considered pairing and orientation to emphasize the color divide and optical activity. Set with a long axis aligned to the finger, the piece presents a spectrum that graduates from purple to gold as the hand moves, and a three stone layout with tapered baguette side stones in warm yellow sapphire or citrine will enhance the golden zone while round brilliant white diamonds placed as melee around a halo will sharpen the purple contrast and increase perceived brightness. For a more contemporary look consider pairing with small green peridot accents to create a complementary triad, or with champagne diamonds for a tonal warm palette. Practical setting recommendations include V tipped prongs or a low profile bezel with protective shoulders at the points to reduce risk of fracture, and a slight elevation of the crown to allow light into the pavilion for maximum scintillation. Communicate your metal preference when commissioning, as white gold or platinum will emphasize the purple tones, while rose or yellow gold will warm the golden side, and our gem specialists at The Natural Gemstone Company will provide CAD oriented mockups to ensure the final piece balances color, protection, and optical performance.