70.27 Ct. Green Sphene (Titanite) from Madagascar

This is a rare and remarkable natural green sphene, weighing 70.27 carats, cut into a radiant shape with precise faceting, and measuring 23.61 by 18.73 by 17.28 millimeters. The gem presents as transparent, with an intense green hue and a clarity grade described as included at eye level, a characteristic that affirms its natural beauty and individuality. The facet arrangement of the radiant cut has been executed to maximize scintillation and dispersion, and the excellent polish allows light to play across its surfaces with crisp, lively reflections. Sourced from Madagascar and completely unenhanced, this titanite embodies provenance and purity, qualities that collectors and connoisseurs prize. At this scale, sphene is exceptionally uncommon, and the combination of size, transparency, color intensity, cut quality, and polish places this stone in a class well above the typical offerings on the market.

Compared to other green gems commonly considered for high impact pieces, this Madagascan sphene stands out for several reasons. Emeralds often command attention for their classic green color, but they frequently exhibit substantial inclusions and require treatments to enhance stability and appearance, which can affect how they age and how they respond to settings. Peridot offers a bright fresh green at an accessible price, but it lacks the exceptional dispersion and fire that sphene displays when faceted expertly. Tsavorite garnet and demantoid garnet sparkle with brilliant saturation, yet they rarely reach the combination of extreme dispersion and substantial carat weight present here. Sphene is known for its high brilliance and noticeable fire that rivals many more familiar gemstones, and this particular 70 carat stone magnifies those optical effects in a way that smaller stones simply cannot. Because this gem is natural, untreated, and from Madagascar, it delivers authenticity that is increasingly scarce in a market where many stones are routinely modified.

For anyone looking to present a truly striking gift, this green sphene makes an unforgettable statement. Its large dimensions and vivid color will dominate a design, whether set as a dramatic cocktail ring, a bold pendant, or a centerpiece for a one of a kind brooch. The stone’s internal character, noted in the included clarity grade, can be celebrated in a bespoke setting that showcases the gem rather than conceals its natural story. Where many gemstones rely on conventional beauty, this sphene offers personality, the kind of depth and light play that invites observers to linger, and the kind of rarity that communicates thoughtfulness and discernment. Giving this gem from The Natural Gemstone Company conveys not only exquisite taste, but an appreciation for geological wonder and artisanal cutting that turns rough material into a luminous focal point. For significant life moments, anniversaries, or collector milestones, it becomes a gift that will be cherished and remembered.

We stand behind the authenticity and quality of this gem at The Natural Gemstone Company, and we are available to help envision the ideal setting or provide additional images and details for appraisal and design. Because sphene has a Mohs hardness lower than many traditional jewelry stones, we recommend protective settings and mindful wear for high impact pieces, as well as professional cleaning advice. Simple home care with warm soapy water and a soft brush will preserve the polish, while avoiding ultrasonic and steam cleaning reduces risk to the stone. For those seeking an object that blends scientific intrigue with visual drama, and who prefer natural, untreated material with documented origin, this radiant green sphene from Madagascar is a superior choice compared with more commonly circulated green gems. Contact The Natural Gemstone Company to discuss custom mounting options, secure shipping, and to ensure that this rare titanite becomes an extraordinary gift for someone special.