Natural Red Mahenge Spinel 6.7 carats, GRS certified
$12,500.00
| Feature / Detail | Specification |
| Item | 6.70-Carat Natural Spinel |
| Report Number | GRS2026-040969 |
| Certification | Gemresearch Swisslab (GRS) |
| Weight | 6.70 ct |
| Dimensions | 14.65 x 10.60 x 5.93 mm |
| Cut / Shape | Modified brilliant/step (6) / Pear |
| Color | Orange-red |
| Treatment | No indication of thermal treatment (PL tested / 100% untreated) |
| Origin | Tanzania |
| Packaging & Shipping | Securely shipped and fully insured in a premium presentation box |
| Support | Available for inquiries and bespoke mounting options |
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Bring home an extraordinary collector’s piece with this magnificent 6.70-carat natural spinel, certified by the esteemed Gemresearch Swisslab (GRS). Featuring a vivid, lively color and an impressive size, this gemstone is an exceptional find for high-end jewelry or a serious investment portfolio.
Key Specifications:
Report Number: GRS2026-040969
Identification: Natural Spinel
Weight: 6.70 ct
Dimensions: 14.65 x 10.60 x 5.93 mm
Cut / Shape: Modified brilliant/step (6) / Pear
Color: Orange-red
Comments: No indication of thermal treatment (PL tested)
Origin: Tanzania
Why Choose This Gemstone?
100% Untreated: Completely natural and unheated, preserving its pure geological beauty and intrinsic value.
Exceptional Presence: At 6.70 carats with balanced pear dimensions (14.65 x 10.60 mm), it makes a breathtaking centerpiece for a custom ring or pendant.
Trusted Certification: Backed by official GRS laboratory documentation verifying its origin and untreated status.
Shipping & Customer Care:
Packaging: Securely shipped and fully insured in a premium presentation box.
Support: Feel free to reach out with any questions or if you would like to discuss bespoke mounting options.
Related Products
| 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) |
| Feature | Description |
|---|---|
| Gemstone | Natural Mahenge Spinel |
| Carat Weight | 2.61 ct |
| Color | Medium Pink |
| Clarity | Transparent |
| Cut/Shape | Cushion |
| Origin | Mahenge, Tanzania |
| Measurement | 9.8 x 7.3 x 4.71 mm |
| Treatment | Unheated |
| 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 |
| Specification | Details |
| Type | Natural Spinel |
| Origin | Mahenge, Tanzania |
| Weight | 2.05 Carats |
| Color | Light Baby Pink |
| Treatment | None (100% Unheated & Untreated) |
| Cut/Shape | Cushion Cut |
| Dimensions | 8.11 x 6.21 x 4.83 mm |
| Clarity | Included (as shown in the picture) |
| Feature / Detail | Specification |
| Item | 1.56ct Natural Mahenge Spinel Gemstone |
| Variety | Mahenge Spinel |
| Weight | 1.56 Carats |
| Dimensions | 7.75 x 5.75 x 4.65 mm |
| Cut / Shape | Oval Cut |
| Color | Vivid Neon Pinkish-Red |
| Clarity | Slightly Included High Transparency |
| Hardness | 8 on the Mohs scale |
| Origin | Mahenge, Tanzania |
| Treatment | No Heat / No Treatment (100% Natural) |
| Sourcing & Shipping | Ethically sourced, hand-selected and shipped from Bangkok, Thailand with secure, insured worldwide shipping |
| 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 |
| Attribute | Details |
|---|---|
| Gemstone | Mahenge Spinel |
| Shape | Heart |
| Carat Weight | 3.37 ct |
| Color | Orange-Red |
| Origin | Mahenge, Tanzania |
| Measurements | 9.37 mm x 11.5 mm x 4.75 mm |
| 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) |
| Category | Details |
| Cut / Shape | Cushion Cut |
| Weight | 1.42 Carats |
| Gem Type | Natural Spinel |
| Origin | Mahenge, Tanzania |
| Color | Vivid Neon Pink |
| Dimensions | 6.82 x 6.92 x 3.49 mm |
| Clarity | Included (Superior transparency with typical silk/inclusions) |
| Treatment | No Heat / No Treatment (100% Natural) |
| Key Features | Signature “Mahenge Glow,” high refractive index, single-refraction properties |
| Design Ideas | Bespoke Engagement Ring, Modern Solitaire, Art Deco Pendant |
| Authenticity | Ethically sourced, 100% natural, untreated, investment-quality |
| Category | Details |
|---|---|
| Gemstone | Natural Mahenge Spinel |
| Carat Weight | 0.92 ct |
| Color | Vivid Neon Pink-Red |
| Cut / Shape | Rectangle Emerald Cut / Step Cut |
| Dimensions | 6.86 × 4.25 × 3.26 mm |
| Clarity | Eye Clean / VVS (Excellent Transparency) |
| Treatment | None (Completely Unheated & Untreated) |
| Origin | Mahenge 🇹🇿 |
| Special Features | Neon saturation, hall-of-mirrors effect, exceptional brilliance |
| Best For | Solitaire rings, pendants, high-end custom jewelry |
| Suggested Designs | Minimalist solitaire ring, three-stone ring with baguette diamonds, statement pendant |
| Sourcing | Ethically sourced from family-run mining operations |
| Quality Control | Hand-selected and inspected in Bangkok |
| Shipping | Worldwide insured shipping with tracking in a luxury gemstone box |
| 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) |
| 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 |















































