One of One
Spinel
Cobalt Blue Spinel — 0.87ct Cushion
A rare 0.87 carat cobalt blue spinel — a color driven by trace cobalt, found in only a handful of deposits worldwide.
$4,100
In stock, ships in 2–3 business days
Insured shipping, 2–3 business days
30-day returns
Secure checkout
Collector
Rare combination of size, color, and origin sought by connoisseurs and collectors.
GoodCollector
Gemstone Specifications
- 0.87 ct
- Dimensions
- 5.6 × 5.0 × 3.3 mm
- Shape
- Cushion
- Excellent
- Cobalt blue
- Eye clean
- Sri Lanka
- None
- Natural
- Inventory ID
- MK-SP-0870
Customer Reviews
5.0
1 reviews
5
100%
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- March 15, 2026
Exceeded expectations
My jeweler was impressed with the clarity and cut when I brought this in for setting. Will absolutely be back for my next piece.
Ruth A., Toronto, ON0 found this helpful
Gemstone Report
GRS GemResearch Swisslab
Report No. GRS2026-551029
- Origin
- Sri Lanka
- Treatment
- None detected
Journey of Your Gem
- 1
Origin
Sourced from Sri Lanka, disclosed here as reported by our supplier network.
- 2
Sorting & Selection
Rough or pre-formed material is sorted for color, clarity, and cutting potential.
- 3
Cutting & Polishing
Faceted or cabochon-cut by experienced lapidaries to maximize the stone's natural qualities.
- 4
Quality Inspection
Assessed against our published grading criteria for color, clarity, cut, and carat weight.
- 5
Certification
Documented with the certificate type shown on this listing — third-party lab report or in-house report.
- 6
Your Collection
Packaged and insured for shipment directly to you.
