0.46 Ct. Bluish Green Sapphire from Madagascar

This elegant Madagascar sapphire offered by The Natural Sapphire Company weighs 0.46 carat, and is fashioned in an oval shape with dimensions 4.79 by 3.81 by 2.95 millimeters, and a mixed brilliant cut. The gem is transparent, with a medium intense bluish green hue, and an evaluated clarity grade of very very slightly included at eye level, which reads to the educated buyer as essentially eye clean. The polish on this stone is excellent, contributing to lively facet reflections and strong face up brilliance for its size. Enhancement heat treated is disclosed, which is a widely accepted and stable treatment used to optimize color and clarity in natural corundum. Because this sapphire originates from Madagascar, it sits within a well regarded supply region that in recent decades has produced a wide range of attractive colors including vivid blues, greens, and parti sapphires, and its documented origin is part of the overall value equation we present at The Natural Sapphire Company.

From a gemological standpoint this sapphire scores well in the key value parameters an informed buyer uses to compare stones. The mixed brilliant cut combines a brilliant style facet arrangement above the girdle with complementary pavilion design to maximize scintillation and light return in small to medium sized stones. Given the oval proportions and the 0.46 carat weight, the cut helps the gem read larger face up than many round stones at the same weight. The clarity grade reported as very very slightly included at eye level means that any internal features are minimal and do not interfere with transparency or sparkle when the stone is set. The medium intense color intensity is particularly desirable in a bluish green sapphire because it preserves saturation without moving the stone into an overly dark tone, which can mute brilliance. Our disclosure of heat treatment is important to collectors and assures the buyer that the enhancement is standard, permanent, and has been applied to reveal the sapphire’s best color and clarity, rather than to simulate a qualitatively different material.

Comparing hue and tone to better known producing regions helps place this gem within the broader sapphire market. Classic Kashmir sapphires are renowned for a velvety, cornflower blue tone with a distinctive soft glow, and they rarely show a pronounced green component. Burmese sapphires from Myanmar tend to sit on the pure blue axis with strong, vivid saturation and little green influence. Sri Lankan sapphires often present as bright medium to light blue tones with lively brilliance and a generally cooler, more purely blue hue. By contrast, Australian sapphires commonly run to deeper, inky blue greens with heavier tone, which can appear more subdued in jewelry. Montana sapphires from the United States frequently show lighter, steely blue and teal tones with lower saturation and a distinctive silvery undertone. This Madagascar sapphire, with its medium intense bluish green hue, occupies a balanced position between the more purely blue Sri Lankan and Burmese stones and the darker Australian material, delivering a nuanced green influence that reads as teal in many lighting conditions. Its tone is neither washed out nor overly dark, so it retains brightness and color play while offering a distinctive hue that is less common than straight blues.

For an educated buyer seeking a well balanced, wearable colored sapphire, this piece represents an excellent combination of natural origin, documented treatment, precise cutting, and strong eye level clarity. The very very slightly included clarity grade and excellent polish ensure visible purity and scintillation, while the mixed brilliant cut and oval shape make it versatile for a variety of settings, from refined solitaires to delicate halo rings or stud earrings. Madagascar origin adds appeal for collectors who appreciate the island’s diversity of sapphire colors, and the disclosure of heat treatment aligns with market best practices that favor transparency and long term stability. At The Natural Sapphire Company we can provide additional photographic detail and independent lab reporting options for buyers seeking certification, and we will advise on mounting choices that preserve and showcase the sapphire’s bluish green personality while maximizing wearability and value.