0.87 Ct. Garnet from Madagascar

This listing presents a transparent color change garnet weighing 0.87 carat, cut to a cushion outline with precise dimensions of 5.73 by 4.58 by 3.49 mm, and originating from Madagascar. The cutter employed a mixed brilliant faceting scheme to reconcile the need for scintillation with the requirement to preserve color change under varied lighting, resulting in intense color intensity and an excellent polish. Clarity has been evaluated as slightly included at eye level, indicating the presence of small internal crystal inclusions that are visible only upon careful inspection, and no enhancements have been applied to alter the natural state of the material. The Natural Gemstone Company offers this specimen as an untreated, gemologically sound example of Madagascar color change garnet, with documentation reflecting origin and the unenhanced condition.

From a cutting and proportion perspective this stone is engineered to maximize both color and light performance, with an overall depth of approximately 61 percent relative to the table length, a proportion that sits comfortably within the range that promotes balanced light return for cushion mixed brilliant cuts. The mixed brilliant approach places a brilliant style arrangement on the crown to increase return of white light and sparkle, while a stepped or modified pavilion controls the path length of light within the body of the gem so as to emphasize the differential absorption bands responsible for the color change phenomenon. The result is a face up appearance that retains lively windowless color when viewed under cool daylight sources, while continuing to display controlled brilliance and a finely faceted pavilion that contributes to stable optic performance when mounted. The excellent polish enhances facet transparency and minimizes surface disturbance, allowing the slightly included clarity to remain a minor factor in visual performance rather than a structural concern.

Colorimetrically this garnet exhibits a primary hue that reads in daylight as a cool olive to bluish green with strong saturation, and a tone that I would characterize as medium deep, consistent with the declared intense color intensity. Under incandescent lighting the stone shifts toward a muted purplish brown to grayish plum, a change driven by the presence of chromium and vanadium activators paired with iron related absorption, which is typical of many color change garnets from Madagascar. When comparing hue and tone to other famous gemstone sources, the garnet differs from East African tsavorite garnet from Kenya and Tanzania, which typically presents a more pure vivid green hue with higher chroma and less tone, and which does not exhibit a pronounced color shift between lighting conditions. Relative to Russian demantoid garnet the present stone is darker in tone and more olive in hue, with demantoid showing a brighter yellowish to pure green and markedly higher dispersion that produces fire rather than a two tone shift. Compared to Sri Lankan color change sapphires, which often display a strong bluish green to purple red change with high color saturation in both states, this Madagascar garnet leans more toward an olive and earthy spectrum with a softer red component under warm light, resulting in a subtler, more gemologically complex change rather than a high contrast alexandrite type effect.

Clarity assessment as slightly included at eye level indicates inclusions that are small crystal residues and fine feathers, distributed such that they do not create significant windows or affect the faceting symmetry, and they do not compromise the durability of the stone for normal jewelry wear. Garnet species represented in color change material generally register from 6.5 to 7.5 on the Mohs scale, and this specimen will perform well in settings that protect the girdle and pavilion from direct impact, while allowing the crown facets to interact with incoming light to display the color change. The lack of enhancements is a notable provenance and value indicator for collectors and connoisseurs who prioritize natural optical effects and original trace element chemistry. The cutter and polisher have maintained facet junction integrity and symmetry to industry standards, which together with the excellent polish maximizes apparent color saturation and minimizes light leakage.

For use in jewelry this 0.87 carat cushion color change garnet is well suited to a design that capitalizes on both lighting environments, for example a gallery setting or a halo that provides visual context without overpowering the stone, and a bezel or prong configuration that protects the pavilion and permits light entry to the crown. Designers seeking a warm to cool daily contrast will appreciate the way this garnet moves between olive green in daylight and plum under incandescent, making it an excellent focal piece in rings, pendants, and bespoke pieces where the wearer values an active optical character. When compared to stones from other notable localities the Madagascar origin places this piece among a class of color change garnets prized for their minerality and nuanced shifts, and The Natural Gemstone Company is able to offer this untreated example with clarity and dimensional data for exacting clients who demand technical detail prior to setting.