Bangkok Blue Sapphire (Neelam) 2.85 Carat (3.13 Ratti) — Octagon Mix Cut
SKU: SKU-18508
Detailed Product Description
Bangkok Blue Sapphire (Neelam) — 2.85 Carat (3.13 Ratti), Octagon Mix Cut
Photos: This octagon mix SKU (GS12220448669; Word list product 2) uses the square-crop image set in Edited Photos/ — face-up, back, and in-hand — showing the octagon stone. The non-square 2.85 ct files belong to the oval mix listing (Product 01).
This is a Bangkok Blue Sapphire (Neelam) — natural blue corundum (Al2O3), 9 on the Mohs hardness scale for the mineral host. Natural blue corundum is processed through Bangkok — the world’s leading hub for professional sapphire treatment and trading for decades. This stone carries glass-filling enhancement as well as heat treatment, typical of this Rs. 800/carat tier.
Treatment disclosure (our standard practice): Heated, treated, and glass-filled — stated clearly. Heat treatment is very common in the trade; glass-filling is a stronger enhancement that improves apparent clarity in fractured rough.
Astrological / traditional use: Neelam is widely linked to Shani (Saturn) in Indian culture. Suitability is chart-specific — consult an astrologer you trust. For unheated, untreated material, see our natural African blue sapphire range.
| Specification | Details |
|---|---|
| SKU | GS12220448669 |
| Weight | 2.85 Carat (3.13 Ratti) |
| Size (L × W × H) | Approx. 8.5 × 8.1 × 5.6 mm |
| Colour | Blue |
| Cut / Shape | Octagon mix cut |
| Transparency | Translucent to semi-transparent |
| Luster | Vitreous on polished facets |
| Material | Natural corundum — blue sapphire (Al2O3) |
| Hardness | 9 on Mohs scale (corundum host) — glass filler is softer; avoid harsh cleaning methods |
| Refractive index (R.I.) | Approx. 1.76–1.77 (corundum range; per gemological testing) |
| Treatment | Heated and treated; glass-filling enhancement disclosed (Bangkok Neelam tier) |
| Origin / Trade Type | Bangkok Blue Sapphire (Neelam) — Thailand-market treatment / trading category |
| Pricing | Rs. 800 per carat × 2.85 ct = Rs. 2,280.00 |
| Indian Name | Neelam (Shani / Saturn association — traditional belief) |
| Conclusion | Natural blue sapphire (corundum) |
Care Instructions
Clean with lukewarm water, mild soap, and a soft brush only. Avoid ultrasonic and steam cleaners. Inform your jeweller about glass-filling before repair or torch work.
Setting Recommendations
Octagon corners need sensible protection for ring wear — bezel or strong corner prongs. Fine for pendants.
Wearing as Neelam (traditional guidance)
As with any Neelam, follow guidance from an astrologer you trust; many traditions suggest a short trial period before daily wear.
Category & learning links: Blue Sapphire (Neelam) · Blue Sapphire (Neelam) buying guide.
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