Distinguished by optical fire that surpasses even that of diamond, this extraordinary 9.88-carat Natural Untreated Madagascar Sphene (also known gemologically as titanite) commands immediate attention. Masterfully fashioned into an exquisite heart brilliant with custom precision faceting, this rare collector's gem exhibits an electric forest-to-lime green body color saturated with an intense, kaleidoscopic multicolor spectral dispersion.
With a dispersion rating (0.051) significantly higher than diamond (0.044), sphene splits light into dazzling flashes of orange, red, yellow, and green. Sourced directly from the rich pegmatite deposits of Madagascar, this substantial near-10-carat crystal displays exceptional slight VVS clarity a remarkable achievement for a mineral species that almost universally crystallizes with heavy internal veiling. Completely untreated and in its virgin state, it represents a premier centerpiece for an avant-garde bespoke high-jewelry pendant or an elite collector vault.
Gemstone Specifications
| Species | Natural Sphene (Titanite) |
| Variety | Natural Green Sphene |
| Carat Weight | 9.88 ct |
| Color & Optical Effect | Vivid Green with intense multi-color spectral fire (dispersion) |
| Clarity | Slight VVS (Exceptional crystalline transparency for the species) |
| Shape & Cut | Heart Shape (Excellent Precision Brilliant Cut) |
| Refractive Index & Dispersion | RI: 1.885 - 2.050 | Dispersion: 0.051 (Exceeds Diamond) |
| Enhancement / Treatment | No Indications of Treatment (100% Natural & Untreated) |
| Geographic Origin | Madagascar |
| Item Reference / SKU | Wbgem SHA10 |
The Rarity & Optical Magic of Natural Sphene
Sphene is cherished by connoisseurs for its strong birefringence (double refraction) and extraordinary fire. Because natural sphene rough is brittle and naturally prone to fractures, faceting a clean specimen approaching 10 carats into a sharp, symmetrical heart shape requires world-class lapidary mastery. Clean, vividly saturated green material from Madagascar of this magnitude is among the most coveted exotic gems in fine gemology.
Custom High-Jewelry Commission
This precision-cut heart sphene is available loose for collector portfolios or ready for custom mounting. Consult with our master jeweler to engineer a protective halo pendant or custom cocktail setting in 18K yellow gold or platinum designed to showcase its unmatched light performance.
