Certified Natural Mahenge Spinel Gemstone: Vibrant Pinkish Red, Cushion Cut, 10.15 Carat
$31,500.00
| Specification | Details |
| Gemstone | Natural Spinel |
| Origin | Mahenge, Tanzania |
| Weight | 10.15 Carats (Monumental Size) |
| Shape | Cushion Cut (Brilliant) |
| Color | Vivid Neon Red-Pink (Highly Saturated) |
| Dimensions | 11.7 x 11.7 x 8.6 mm |
| Clarity | Included |
| Certification | Certified Natural (Major International Lab Certificate Included) |
| Treatment | 100% Untreated (No Heat / No Treatment) |
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Spectacular 10.15ct Certified Natural Mahenge Spinel | Electric Neon Red-Pink Cushion
Prepare to be mesmerized. This is not just a gemstone; it is a museum-grade masterpiece. Standing at a monumental 10.15 Carats, this Natural Mahenge Spinel from Tanzania is an ultra-rare treasure, possessing the legendary “neon” glow that has made this origin famous worldwide.
Its color is the pure, highly-saturated, electric Red-Pink (or “Jedi” pink) that has defined the highest standard for spinel. Masterfully fashioned into a brilliant Cushion Cut, this monumental stone captures light from every facet, creating a fiery internal glow that remains intense even in low light. Finding a Mahenge spinel of this color and quality over 10 carats is an exceptionally rare event for collectors and investors.
### Gemstone Specifications:
Gemstone: Natural Spinel
Origin: Mahenge, Tanzania
Weight: 10.15 Carats (Monumental Size)
Shape: Cushion Cut (Brilliant)
Color: Vivid Neon Red-Pink (Highly Saturated)
Dimensions: 11.7 x 11.7 x 8.6 mm
Clarity: Included (80% to 85% eye clean)
Certification: Certified Natural (Major International Lab Certificate Included)
Treatment: 100% Untreated (No Heat / No Treatment)
### Why This Mahenge Spinel is a Generational Investment:
Monumental Rarity: Specimens of Mahenge spinel in this intense “Jedi” color typically peak at around 2-3 carats. A clean, well-cut example surpassing 10 carats is virtually unheard of and is an active target for high-end collectors and museums.
The “Glow” Phenomenon: Mahenge spinel has a unique trace element signature (low iron, high chromium) that gives it a fluorescent “glow” that makes the color appear to pop from the stone, even from a distance. It commands attention unlike any other red gemstone.
Exceptional Value Retention: As the primary deposit in Mahenge yields fewer large stones each year, the desire for stones of this size continues to drive historical price appreciation. This is a secure asset class.
Flawless Presentation: This stone is presented here in our prestigious, gold-stamped “Aleeze Gems” display portfolio, reflecting its ultra-premium status.
### Bespoke High-Jewelry Conception
A gemstone of this extreme rarity and size requires a world-class setting to fully honor its beauty. At Aleeze Gems, we are specialists in custom, high-jewelry design. We envision this 10.15ct masterwork as the breathtaking center of a Platinum and Diamond Halo Cocktail Ring or an avant-garde Red Carpet Pendant.
Our expert gemologists and designers at our Bangkok headquarters on Mahesak Soi 3 are ready to collaborate with you to create a bespoke piece that will be passed down for generations. Message us to begin a conversation.
Official, Major International Lab Certificate (GIA/GRS/AIGS) confirming “No Heat” treatment.
Luxury “Aleeze Gems” Presentation Box and official documentation.
Secure, White Glove Insured Courier Shipping worldwide.
Capture a piece of Tanzanian legend. Secure this world-class 10.15ct Mahenge Spinel for your portfolio today.
Related Products
| Category | Details |
|---|---|
| Gemstone | Natural Mahenge Spinel |
| Carat Weight | 0.69 ct |
| Color | Vivid Neon Pink (Highly Saturated) |
| Cut / Shape | Baguette Cut |
| Dimensions | 7.7 × 6.05 × 2.55 mm |
| Clarity | Eye Clean |
| Treatment | None (Unheated & Untreated) |
| Origin | Mahenge |
| Special Features | Exceptional “neon” glow, high brilliance, crisp color |
| Best For | Minimalist rings, pendants, custom jewelry |
| Suggested Designs | East-West ring, Toi et Moi design, solitaire necklace |
| Shipping | Secure gemstone display box with tracking |
| Authenticity | Directly sourced from mining operations |
| Category | Detail / Feature |
| Gemstone Overview | Natural Blue Mahenge Spinel (0.30 Carats Round Cut) |
| Visual Characteristics | Bright, open sky-to-cornflower blue color accented by gentle, reflective light play, crisp clear brilliance, and subtle violet-blue flashes. |
| Stone Type | Natural Blue Spinel |
| Weight | 0.30 Carats |
| Color | Bright Sky Blue |
| Origin | Mahenge, Tanzania |
| Shape / Cut | Round Cut (Faceted) |
| Dimensions | 3.99 x 2.64 mm |
| Clarity | Slightly Included |
| Treatment | Unheated / Untreated (100% All-Natural) |
| Key Highlights | Soft bright color profile avoiding dark inkiness, precision round cut with excellent symmetry, renowned Mahenge locality, and 100% all-natural purity. |
| Ideal Uses | Delicate solitaire ring center, exquisite accent stone in a multi-stone ring layout, or a premium addition to a capsule gemstone collection. |
| Packaging & Presentation | Shipped safely in a premium gemstone specimen box designed for viewing, presentation, and long-term protection. |
| Shipping | Fully trackable, insured express courier worldwide. |
| Custom Jewelry Service | Bespoke design services available to collaborate with their team and turn the gemstone into custom fine jewelry. |
1 in stock
| Category | Detail |
| Product Name | Stunning 2.07ct Natural Mahenge Spinel – Vivid Neon Glow |
| Description | Electrifying brilliance, high saturation vivid pink-red hue with exceptional internal fire, elongated cushion cut for a standout presence. |
| Weight | 2.07Carats |
| Gem Type | Natural Spinel |
| Origin | Mahenge, Tanzania |
| Shape | Cushion Cut (Elongated) |
| Color | Vivid Neon Pinkish-Red |
| Clarity | Included |
| Measurement | 8 x 6 x 4.65 mm |
| Treatment | None (100% Natural & Unheated) |
| Key Highlights | World-renowned signature glow, unheated purity, ideal center stone for engagement rings, cocktail rings, or high-end pendants. |
| Shipping | Fully insured, tracked worldwide delivery |
| Packaging | Professional gemstone display box |
| Guarantee | 100% natural Tanzanian origin |
A delicate pear-cut Mahenge spinel with intense color and strong fluorescence, certified by GFCO GEM.
| Attribute | Details |
|---|---|
| Weight | 0.93 ct (pear cut) |
| Color | Vivid Pink (strong fluorescence) |
| Clarity | Eye-clean |
| Origin | Tanzania (Mahenge) |
| Treatment | None |
| Dimensions | 7.20 × 4.89 × 3.60 mm |
| Cut Grade | Very Good (precision cut) |
| Certificate | GFCO GEM (Bangkok ) |
Key Features:
✔ Dainty & Versatile – Perfect for delicate jewelry
✔ Certified Natural by Bangkok gemologists
✔ Eye-Clean Brilliance with strong glow
| Feature / Specification | Details |
| Weight | 1.76 Carats |
| Gem Type | Natural Spinel |
| Origin | Mahenge, Tanzania |
| Color | Grape Purple / Deep Plum (with magenta and lavender flashes) |
| Shape | Oval |
| Dimensions | 8.59 x 5.49 x 4.66 mm |
| Clarity | Slightly Included |
| Treatment | No Heat / No Treatment (100% Natural) |
| Optical Properties | Singly refractive with exceptional luster and “velvety” saturation |
| Design Recommendations | Pairs well with Rose Gold (brings out warm magenta undertones) or White Gold/Platinum (emphasizes violet primary hue) |
| Authenticity | Ethically sourced and 100% natural |
| Specification | Details |
| Gem Type | Natural Spinel |
| Origin | Mahenge, Tanzania |
| Weight | 1.27 Carats |
| Dimensions | 7.66 x 4.5 x 3.65 mm |
| Shape/Cut | Baguette / Emerald Step-Cut |
| Color | Electric Neon Pink |
| Clarity | SI (Slightly Included) |
| Treatment | 100% Natural (Unheated & Untreated) |
| Specification | Details |
| Variety | Natural Spinel |
| Origin | Mahenge, Tanzania |
| Weight | 2.15 Carats |
| Dimensions | 7.70 x 6.32 x 5.11 mm |
| Shape/Cut | Cushion Cut |
| Color | Soft Pink |
| Clarity | Included (Heavy inclusions) |
| Treatment | None (100% Natural, unheated) |
| Category | Details |
|---|---|
| Gemstone | Natural Mahenge Spinel |
| Carat Weight | 1.26 ct |
| Color | Vivid Neon Pink (High Saturation) |
| Cut / Shape | Oval Brilliant |
| Dimensions | 7.26 × 6.05 × 3.13 mm |
| Clarity | Eye Clean (Excellent Transparency) |
| Treatment | None (Completely Unheated & Untreated) |
| Origin | Mahenge 🇹🇿 |
| Special Features | Strong neon glow, exceptional brilliance, vivid pink-to-reddish sparkle |
| Investment Appeal | Rare natural spinel with increasing collector and investor demand |
| Best For | Engagement rings, halo settings, pendants, luxury custom jewelry |
| Suggested Designs | Solitaire ring, diamond halo setting, timeless pendant |
| Sourcing | Ethically sourced directly from mining operations |
| Inspection & Shipping | Hand-selected and shipped from Bangkok |
| Shipping | Worldwide tracked and insured delivery in a premium display case |
| Feature / Detail | Specification |
| Item | 10.95-Carat Natural Spinel |
| Report Number | GRS2025-041392 |
| Certification | Gemresearch Swisslab (GRS) |
| Weight | 10.95 ct |
| Dimensions | 13.40 x 9.68 x 9.59 mm |
| Cut / Shape | Modified brilliant/step (6) / Rectangular cushion |
| Color | Orangy-pink |
| Treatment | No indication of thermal treatment (PL tested, non-enhanced clarity features present / 100% untreated) |
| Origin | Tanzania |
| Packaging & Shipping | Securely shipped and fully insured in a premium presentation box |
| Support | Available for inquiries and custom jewelry manufacturing options |
| Item Specifications | Details |
|---|---|
| Gemstone | Natural Spinel |
| Origin | Mahenge, Tanzania |
| Weight | 7.7 Carats (Exceptional size for this origin) |
| Dimensions | 12.4 × 9.12 × 6.12 mm |
| Color | Milky Soft Pink / Neon Peach-Pink |
| Clarity | Translucent (Natural “Silky” or “Velvety” effect) |
| Treatment | None (100% Natural) |
| Shape / Cut | Rectangular Emerald Cut |
| Hardness | 8 on the Mohs Scale |
| Attribute | Details |
|---|---|
| Gemstone | Natural Mahenge Spinel |
| Weight | 3.77 carats |
| Color | Purplish Pink |
| Origin | Mahenge, Tanzania |
| Clarity | Transparent |
| Cut | Cushion |
| Treatment | Unheated/Untreated |
| Measurements | 8.78 x 7.45 x 6.65 mm |
| Certification | Produced upon request |
| Feature / Detail | Specification |
| Item | Natural Mahenge Spinel Gemstone |
| Color | Light Pink |
| Clarity | Included (visible inclusions consistent with natural origin) |
| Cut / Shape | Cushion Cut |
| Weight | 2.05 carats |
| Dimensions | 8.11 x 6.21 x 4.83 mm |
| Origin | Mahenge, Tanzania |
| Treatment | None (Natural, untreated) |
| Sourcing | Direct from mining |

































































