Natural Blue Sapphire Oval 1.63 ct – Royal Blue, Vivid to Intense Blue, No Heat – GUILD
CHF 1,500.00
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Natural Blue Sapphire Oval 1.63 ct – Royal Blue, Vivid to Intense Blue, No Heat – GUILD
CHF 1,500.00
1.63 ctCHF 920 / ct
Price is for the stone only. Any import duties and taxes are shown at checkout.
1.63 ctCarat weight
No heatTreatment
GUILDLaboratory
Stone details
- Stock ID
- SA-MD-017
- Weight
- 1.63 ct
- Shape
- Oval
- Dimensions (mm)
- 7.62 x 6.32 x 4.06
- Origin
- Madagascar
- Colour
- Blue
- Treatment
- No heat (lab-confirmed)What this means
- Certificate
- GUILD, no. 3117410122 View report
Photographed in daylight without colour correction. Ask us for more photos or a video.
Natural blue sapphire from Madagascar, oval, 1.63 ct, vivid to intense blue, with no indication of heating according to its GUILD Gem Laboratories report. Sold as a single loose stone.
Laboratory report
| Laboratory | GUILD Gem Laboratories |
|---|---|
| Report number | 3117410122 |
| Report date | 7 May 2026 |
| Identification | Natural corundum, natural sapphire |
| Weight | 1.63 ct |
| Measurements | 7.62 × 6.32 × 4.06 mm |
| Shape and cut | Oval, modified brilliant |
| Colour | Vivid to Intense Blue |
| Trade name | Royal Blue |
| Treatment | No indication of thermal enhancement |
| Origin | Madagascar |
The original report ships with the stone. You can verify the report number on the laboratory's website before you buy.