1 pcs Green, Blue Sapphire - 1.10 ct - Antwerp Laboratory for Gemstone Testing (ALGT)





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This 1.10 carat sapphire, octagon cut and intensely bluish green, is ALGT certified (Report No. 59452798) and offered as a single transparent heated stone.
Description from the seller
Natural Sapphire, 1.10 ct, Octagon cut, Intense Bluish Green – ALGT Certified (Report No. 59452798)
This natural sapphire of 1.10 carats displays a captivating intense bluish-green color, beautifully balanced between vibrancy and depth. Its octagon step cut enhances color play and brilliance, giving the gem an elegant and modern profile.
Measuring 6.35 × 6.00 × 3.08 mm, the stone offers a harmonious proportion ideal for refined jewelry pieces such as rings or pendants.
Details:
• Carat Weight: 1.10 ct
• Shape & Cut: Modified Octagon, Step Cut
• Measurements: 6.35 × 6.00 × 3.08 mm
• Color: Intense Bluish Green
• Transparency: Transparent
• Treatment: Heated
• Certification: ALGT Report No. 59452798
Shipping: Express fully insured shipping.
All photos were professionally taken with macro lenses.
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 stay closely connected to the global community and currently serve as Secretary of the GIA Alumni Chapter in Antwerp.
Combining family tradition with modern expertise, on Catawiki you’ll find carefully curated items offered for auction, providing excellent opportunities for both wholesalers and private buyers.
TWAK – Your Gem, Your Story
Seller's Story
Natural Sapphire, 1.10 ct, Octagon cut, Intense Bluish Green – ALGT Certified (Report No. 59452798)
This natural sapphire of 1.10 carats displays a captivating intense bluish-green color, beautifully balanced between vibrancy and depth. Its octagon step cut enhances color play and brilliance, giving the gem an elegant and modern profile.
Measuring 6.35 × 6.00 × 3.08 mm, the stone offers a harmonious proportion ideal for refined jewelry pieces such as rings or pendants.
Details:
• Carat Weight: 1.10 ct
• Shape & Cut: Modified Octagon, Step Cut
• Measurements: 6.35 × 6.00 × 3.08 mm
• Color: Intense Bluish Green
• Transparency: Transparent
• Treatment: Heated
• Certification: ALGT Report No. 59452798
Shipping: Express fully insured shipping.
All photos were professionally taken with macro lenses.
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 stay closely connected to the global community and currently serve as Secretary of the GIA Alumni Chapter in Antwerp.
Combining family tradition with modern expertise, on Catawiki you’ll find carefully curated items offered for auction, providing excellent opportunities for both wholesalers and private buyers.
TWAK – Your Gem, Your Story

