0.80 Ct. Bi Color Sapphire from Madagascar

This oval shaped bi color sapphire from Madagascar weighs 0.80 carat, and measures 6.14 by 4.78 by 3.27 mm, a compact size that is ideal for both classic and contemporary settings. Graded as transparent with very slightly included clarity when evaluated at eye level, this sapphire demonstrates the type of eye appeal that educated buyers seek, showing only minor internal features that do not distract from overall beauty. The stone displays intense color intensity, a highly desirable attribute in sapphires, and it has been heat treated, a stable and widely accepted enhancement used to optimize color and to relieve certain growth strains. The polish has been assessed as excellent, and the gem has been cut into an oval shape with a mixed brilliant cut, producing a balanced combination of fire, brilliance, and color saturation. At The Natural Sapphire Company we present this gem with careful documentation of its proportions and treatment history, so that collectors and connoisseurs can make an informed decision.

The mixed brilliant cut used on this stone is a deliberate and technical choice to enhance the sapphire’s inherent properties of light reflection, and it is particularly effective for bi color material. By combining brilliant style facets on the crown with carefully proportioned step or modified facets on the pavilion, the cutter has created a harmonious interplay between scintillation and color return. The crown facets and table act to break incoming light into lively flashes, while the pavilion angles are designed to reflect that light back through the crown, maximizing perceived brightness. For this sapphire the pavilion depth relative to the average girdle diameter is approximately 60 percent, a proportion that concentrates color without causing excessive windowing or leakage of light. The result is a gem that shows strong internal sparkle and lively face up brightness, while also permitting the eye to read the bi color zoning in a way that emphasizes both tones rather than allowing one to dominate.

Clarity and polish are essential factors in assessing the performance of a sapphire, and this gem’s very slightly included grade at eye level means the few inclusions present are minor and generally do not interfere with brilliance or durability. Under close examination, inclusions can sometimes act as light scattering centers that enhance the stone’s character, but in this case they are small and stable, having been rendered inconspicuous by the combination of cutting style and excellent polish. The polish quality ensures that facet junctions are sharp and reflective, which maximizes refraction and internal reflection, improving both the depth of color and the clean transmission of light. Heat treatment, noted here as the sole enhancement, is a conventional and broadly accepted process for sapphires, applied to improve color uniformity and to reduce undesirable inclusions or silk. When disclosed honestly, heat treated sapphires from reputable sources such as Madagascar remain highly valued for their beauty and durability.

From the perspective of provenance and investment, a bi color sapphire of Madagascar origin offers both rarity and aesthetic distinction, two qualities that appeal to educated buyers and collectors. Madagascar has become known for producing a wide range of sapphire colors, including stones that show attractive color zoning or bi color effects, and a gem of this size and intense color intensity can be particularly suitable for bespoke jewelry where the cutter and designer work together to position the color transition for maximum visual effect. At The Natural Sapphire Company we emphasize accurate, transparent information about origin, treatment, and cut so that clients understand how each characteristic contributes to value. This sapphire, with its mixed brilliant cut, excellent polish, and stable heat treatment, is well suited for rings, pendants, or as a center for custom designs where the play of color and light will be showcased. For those seeking a gem that balances technical quality with unique visual personality, this 0.80 carat oval bi color sapphire represents a well considered option.