No Reserve Price - 1 pcs Blue Sapphire - 1.38 ct - Antwerp Laboratory for Gemstone Testing (ALGT)





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Natural sapphire, 1.38 ct, oval mixed-cut, intense blue, transparent, heat-treated, ALGT report 11028827.
Description from the seller
Natural Sapphire, 1.38 ct, Oval Cut, Intense/Vivid Blue.
This is a natural sapphire of 1.38 carats in an oval cut, offering a bright, lively appearance with excellent face-up color. Its balanced outline and transparency give it an appealing presence suitable for fine jewellery.
The stone displays an intense to vivid blue color, with excellent saturation, vibrant, and highly desirable for classic sapphire lovers. The clarity is strong for this type, showing only minor natural inclusions that do not detract from the sapphire’s attractive look.
Nicely cut with dimensions of 7.75 × 6.16 × 2.95 mm, it faces up with a bold splash of vivid blue and good light return. This sapphire is well-suited for a ring, pendant, or addition to a curated gemstone collection.
Certificate details (ALGT):
Laboratory: ALGT (Antwerp Laboratory for Gemstone Testing)
Report Number: 11028827
Species: Natural Corundum
Variety: Sapphire
Carat Weight: 1.38 ct
Shape & Cutting Style: Oval, Mixed Cut
Measurements: 7.75 × 6.16 × 2.95 mm
Color: Intense/Vivid Blue
Transparency: Transparent
Treatment: Indications of heating
Shipping
Insured express courier shipment.
About the Seller
I am a third-generation gemstone and diamond dealer, a Graduate Gemologist and Accredited Jewelry Professional (GIA), and a Diamond Graduate (IGI & HRD). As a member of the Young Diamantaires, GIA Alumni, and SBD, I remain closely connected to the global diamond community and currently serve as Secretary of the GIA Alumni Chapter in Antwerp.
Combining family tradition with modern expertise, I offer carefully curated stones at auction—suitable for both private buyers and industry professionals.
Seller's Story
Natural Sapphire, 1.38 ct, Oval Cut, Intense/Vivid Blue.
This is a natural sapphire of 1.38 carats in an oval cut, offering a bright, lively appearance with excellent face-up color. Its balanced outline and transparency give it an appealing presence suitable for fine jewellery.
The stone displays an intense to vivid blue color, with excellent saturation, vibrant, and highly desirable for classic sapphire lovers. The clarity is strong for this type, showing only minor natural inclusions that do not detract from the sapphire’s attractive look.
Nicely cut with dimensions of 7.75 × 6.16 × 2.95 mm, it faces up with a bold splash of vivid blue and good light return. This sapphire is well-suited for a ring, pendant, or addition to a curated gemstone collection.
Certificate details (ALGT):
Laboratory: ALGT (Antwerp Laboratory for Gemstone Testing)
Report Number: 11028827
Species: Natural Corundum
Variety: Sapphire
Carat Weight: 1.38 ct
Shape & Cutting Style: Oval, Mixed Cut
Measurements: 7.75 × 6.16 × 2.95 mm
Color: Intense/Vivid Blue
Transparency: Transparent
Treatment: Indications of heating
Shipping
Insured express courier shipment.
About the Seller
I am a third-generation gemstone and diamond dealer, a Graduate Gemologist and Accredited Jewelry Professional (GIA), and a Diamond Graduate (IGI & HRD). As a member of the Young Diamantaires, GIA Alumni, and SBD, I remain closely connected to the global diamond community and currently serve as Secretary of the GIA Alumni Chapter in Antwerp.
Combining family tradition with modern expertise, I offer carefully curated stones at auction—suitable for both private buyers and industry professionals.

