6.57 Ct. Emerald from Zambia

This specimen is a transparent, cushion shape green emerald weighing 6.57 carats, presented with precise dimensions of 12.80 by 10.32 by 7.47 millimeters. The carat weight positions this stone well within the premium category for collectible emeralds, reflecting both visual presence and market significance. At 6.57 carats the gem provides a substantial face up area for a cushion configuration, making it suitable for prominent solitaire or halo settings, while preserving classic emerald character. The combination of generous dimensions and transparency allows the stone to present a strong and evenly distributed color, and the size is large enough to be appreciated when set, yet balanced to accommodate high grade cutting and finishing.

The cutting style is faceted with a mixed brilliant cut, executed to maximize light performance for this green tone. The pavilion and crown relationships yield an approximate depth of 7.47 millimeters relative to the average of length and width, producing an overall depth of approximately 64.6 percent, a proportion that supports effective light return and maintains the rich color saturation. The clarity grade is described as very slightly included when evaluated at eye level, indicating minimal internal characteristics that do not detract from overall transparency or brilliance, and which often add to the natural character expected from fine emeralds. Color intensity is intense, with a vivid, evenly distributed green that displays both depth and vitality under standard lighting, and the polish is excellent, providing a clean faceted surface that enhances brilliance and luster without visible finishing flaws.

Enhancement is standard, with disclosure consistent with trade practice, and the stone has been prepared in a manner that stabilizes appearance while preserving natural character, suitability for everyday wear, and long term durability. The origin is Zambia, a source known for producing deeply colored emeralds with a balance of clarity and saturation, and this specimen exemplifies those regional qualities through its color depth and internal structure. For jewelry design considerations, the stone’s cushion outline, mixed brilliant faceting, and near 6.6 carat weight make it an ideal candidate for center stone applications where presence and color are primary objectives, including bespoke rings, pendants, and collectors mounts. The Natural Emerald Company stands behind the provenance and description provided, and we can assist with further gemological documentation, tailored mounting recommendations, and guidance on care and maintenance to retain optical performance and value over time.