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3.07 Carat Cobalt Blue Mahenge Spinel Oval Cut Loose Gemstone with Bellerophon
$7,900
£6,013.88
€6,875.13
CA$11,115.41
A$12,158.43
CHF 6,401.74
MX$145,159.23
NOK 81,591.13
SEK 74,636.42
DKK 51,350.21
About the Item
A rare, collector level cobalt blue spinel from Mahenge, Tanzania, offered loose and unmounted by Merkaba Jewelry Beverly Hills. Weighing 3.07 carats and cut in an elegant oval, this gemstone displays the vivid saturation and lively brilliance that makes Mahenge spinel so sought after by connoisseurs. The color reads intensely blue with exceptional presence, a true centerpiece stone for bespoke fine jewelry.
Measuring 9.69 x 8.20 x 5.96 mm, the spinel has strong face up coverage and beautiful proportions, ideal for a custom ring or pendant where color and rarity matter most. Spinel is also valued for durability and wearability, making it a refined alternative to traditional center stones for collectors who want individuality and long term elegance.
This gemstone is accompanied by a Bellerophon gem lab certificate, adding confidence and documentation for a serious acquisition.
Design Your Dream Jewelry
Merkaba Jewelry Beverly Hills specializes in bespoke design, transforming extraordinary gemstones into one of a kind heirlooms. This cobalt blue spinel pairs beautifully with platinum, white gold, or rose gold, and can be set as a modern engagement ring, a bold cocktail ring, or a refined pendant, with or without diamond accents depending on your vision.
Details
Gemstone: Cobalt blue spinel, loose gemstone
Origin: Mahenge, Tanzania
Carat weight: 3.07 carats
Cut: Oval
Measurements: 9.69 x 8.20 x 5.96 mm
Certification: Bellerophon gemlab certificate
Offered: Loose, unmounted
Condition: New, unmounted
A rare Mahenge cobalt blue spinel with exceptional color and presence, ready to become a bespoke masterpiece through Merkaba Jewelry Beverly Hills.
- Creator:
- Stone:
- Stone Cut:
- Weight:3.07 ct
- Dimensions:Width: 0.33 in (8.2 mm)Depth: 0.24 in (5.96 mm)Length: 0.39 in (9.69 mm)
- Style:
- Lab Report Available:
- Place of Origin:
- Period:
- Date of Manufacture:2025
- Condition:
- Seller Location:Beverly Hills, CA
- Reference Number:1stDibs: LU569317280632
Merkaba
Merkaba Jewelry Beverly Hills – Where Love, Light
Luxury Converge At Merkaba Jewelry Beverly Hills, every jewel is more than adornment—it is a symbol of artistry, love, and legacy. Handcrafted in platinum and 18K gold, our creations unite rare gemstones with masterful design, creating heirloom treasures of timeless elegance and soulful beauty.
Our collection spans diamond engagement rings, alternative engagement rings, custom three-stone rings, bold cocktail rings, bespoke jewelry, and rare loose gemstones. Featuring diamonds, emerald no oil, unheated sapphires, rubies, aquamarines, Paraiba tourmalines, spinels, and alexandrites, each gem is chosen for rarity, brilliance, and meaning. From the fiery passion of rubies to the serene calm of aquamarine and the neon glow of Paraiba tourmaline, every stone tells a story of renewal, transformation, and love.
Through our Design Your Dream service, clients collaborate with artisans to create custom engagement rings and personalized masterpieces that reflect individuality and spirit.
Every design carries intention—three-stone rings honor past, present, and future, sacred geometry evokes harmony and balance, and statement jewels reflect strength and identity.
For collectors, Merkaba Jewelry Beverly Hills curates a rare collection of fine jewelry and loose gemstones—including no oil emeralds and unheated sapphires—crafted as museum-level treasures and investment-grade designs destined to inspire, captivate, and endure.
About the Seller
5.0
Recognized Seller
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Gold Seller
Premium sellers maintaining a 4.3+ rating and 24-hour response times
Established in 2015
1stDibs seller since 2016
95 sales on 1stDibs
Typical response time: 1 hour
- ShippingRetrieving quote...Shipping from: Beverly Hills, CA
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