4.36ct Cushion Blue Sapphire GIA Certified Unheated
30-Day Private Inspection
Acquiring fine gemstones requires absolute confidence. We invite you to view your piece in your own home for 30 days. If it does not perfectly align with your vision, we will arrange a seamless, full-value return.
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Sapphire is corundum at its most sovereign — a mineral so dense with geological story that its color carries the memory of its birthplace.
This 4.36 carats Sapphire of Blue -6 strong-vivid hue from Inconclusive was selected for the Skyjems Archive not as an afterthought, but as a deliberate acquisition. Unheated sapphires of fine color represent less than one percent of the global supply and are actively acquired by investment-grade collectors. Acquire it with the understanding that stones of this caliber rarely circulate outside private collections.
- Species: Natural Sapphire
- Weight: 4.36 carats
- Dimensions: 8.59 x 8.13 x 6.53 mm
- Shape & Cut: Cushion, Pavilion:
- Color & Saturation: Blue / Dark / -6 Strong-Vivid
- Clarity & Transparency: Eye Clean
- Treatment: Heat Treatment
- Origin: Inconclusive
- GIA Report: 5222613699
- Archive Reference: GIAS2173
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"A record of discernment, carried in metal and light."
Commission a Bespoke Heirloom
Built around this gemstone. Explore our Gem First Design process.
Our Commitment
30-Day Private Inspection
Your piece arrives insured and fully authenticated. Live with it for 30 days. If it does not meet your exact expectations, we arrange a seamless full-value return — no questions, no restocking fees.
Fully Insured Worldwide Delivery
Every shipment is fully insured at declared value, packed in tamper-evident security packaging, and tracked door-to-door. US clients receive duty-free delivery with all customs documentation handled by our team.
GIA-Verified Authentication
Every piece is personally authenticated by David Saad, our third-generation GIA-alumni gemologist, before it leaves our care. Certified stones ship with their original laboratory documentation — GIA, AGL, Gübelin, or SSEF.
Lifetime Relationship
Our relationship extends well beyond the transaction. We offer complimentary cleaning and inspection appointments, trade-up considerations on future acquisitions, and direct access to David for gemological questions — for the life of your piece.
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30-Day Private Inspection
Acquiring fine gemstones requires absolute confidence. We invite you to view your piece in your own home for 30 days. If it does not perfectly align with your vision, we will arrange a seamless, full-value return.
A Legacy of Trust
Our reputation is our most valuable asset. We invite you to read our independent Google Reviews to hear directly from the collectors, couples, and families who have commissioned their heirloom pieces from our bench.