No reserve price Blue, Green Sapphire - 1.79 ct - Gem Report Antwerp (GRA) - Natural Basaltic Sapphire
04
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€ 1
No reserve price
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Selected by Francesca Floramo
Graduate gemmologist from GIA with 20 years jewellery experience, specialising in brand jewellery.
Retail Estimate € 280 - € 330
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One natural basaltic sapphire weighing 1.79 ct, with a deep bluish-green colour, oval mixed cut, transparent appearance and eye-clean clarity, is described as heat-treated and accompanied by a Gem Report Antwerp report.
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Description from the seller
Natural Green Sapphire – 1.79 ct – Deep Bluish Green – Oval Mixed Cut – Transparent – Certified Gem Report Antwerp
Description
A beautiful natural Green Sapphire weighing 1.79 carats, featuring an attractive deep bluish green color, transparent appearance, and an elegant oval mixed cut.
Green Sapphire belongs to the corundum mineral family and is highly appreciated for its distinctive coloration, natural beauty, and exceptional durability.
This gemstone displays a rich deep bluish green appearance, combining green tones with subtle blue undertones. Its carefully arranged facets enhance its natural character and create attractive reflections of light.
This sapphire is identified as a basaltic sapphire. According to the accompanying gemological report, it cannot be determined whether the gemstone has been heated by nature or by man.
With its elegant oval shape and distinctive deep bluish green coloration, this natural sapphire is suitable for creating a beautiful ring, pendant, or other fine jewelry piece. It is also an interesting addition to a gemstone collection.
Gemstone Details
* Gemstone: Natural Sapphire
* Mineral: Natural Corundum
* Weight: 1.79 ct
* Shape: Oval
* Cut: Mixed Cut
* Color: Deep Bluish Green
* Transparency: Transparent
* Measurements: 8.29 × 6.71 × 3.28 mm
* Type: Basaltic Sapphire
* Treatment: Heating status undetermined
Certification
* Laboratory: Gem Report Antwerp, Belgium
* Report Number: 1830019232 AN
* Report Date: September 1, 2026
Laboratory Comments:
“It cannot be determined whether this Basaltic Sapphire has been heated by nature or by man.”
The gemstone comes with its original Gem Report Antwerp certificate confirming its identification and characteristics.
Shipping
The gemstone will be carefully packed and shipped securely with tracking and insurance.
Important Information
All photographs are taken to show the gemstone as accurately as possible. Slight variations in color may occur depending on lighting conditions and screen settings.
Please review all photographs and the certificate carefully before placing your bid.
Royal Antwerp Gem – Antwerp, Belgium
Seller's Story
Paraiba is a Belgium-based gemstone dealer with a passion for exceptional natural gemstones and mineral treasures from around the world.
For many years, we have personally sourced and selected gemstones through trusted networks of miners, cutters, collectors, and dealers across Asia, Africa, South America, and Europe. Every stone is chosen individually based on its beauty, character, rarity, and overall value.
We work exclusively with respected gemological laboratories and independent experts, including renowned institutions in Antwerp, one of the world’s most important centers for the gemstone and diamond trade. Whenever possible, gemstones are accompanied by professional certification to provide buyers with additional confidence and transparency.
Our philosophy is simple: we sell only gemstones that we would proudly add to our own collection. We believe that every gemstone has a story, and we take great care in presenting each piece honestly and accurately.
Today, with more than 500 successful sales and a 100% customer satisfaction score, we continue our search for remarkable gemstones across the globe, bringing unique finds directly to collectors, investors, jewelers, and gemstone enthusiasts.
Thank you for visiting Paraiba and sharing our passion for natural treasures.
Natural Green Sapphire – 1.79 ct – Deep Bluish Green – Oval Mixed Cut – Transparent – Certified Gem Report Antwerp
Description
A beautiful natural Green Sapphire weighing 1.79 carats, featuring an attractive deep bluish green color, transparent appearance, and an elegant oval mixed cut.
Green Sapphire belongs to the corundum mineral family and is highly appreciated for its distinctive coloration, natural beauty, and exceptional durability.
This gemstone displays a rich deep bluish green appearance, combining green tones with subtle blue undertones. Its carefully arranged facets enhance its natural character and create attractive reflections of light.
This sapphire is identified as a basaltic sapphire. According to the accompanying gemological report, it cannot be determined whether the gemstone has been heated by nature or by man.
With its elegant oval shape and distinctive deep bluish green coloration, this natural sapphire is suitable for creating a beautiful ring, pendant, or other fine jewelry piece. It is also an interesting addition to a gemstone collection.
Gemstone Details
* Gemstone: Natural Sapphire
* Mineral: Natural Corundum
* Weight: 1.79 ct
* Shape: Oval
* Cut: Mixed Cut
* Color: Deep Bluish Green
* Transparency: Transparent
* Measurements: 8.29 × 6.71 × 3.28 mm
* Type: Basaltic Sapphire
* Treatment: Heating status undetermined
Certification
* Laboratory: Gem Report Antwerp, Belgium
* Report Number: 1830019232 AN
* Report Date: September 1, 2026
Laboratory Comments:
“It cannot be determined whether this Basaltic Sapphire has been heated by nature or by man.”
The gemstone comes with its original Gem Report Antwerp certificate confirming its identification and characteristics.
Shipping
The gemstone will be carefully packed and shipped securely with tracking and insurance.
Important Information
All photographs are taken to show the gemstone as accurately as possible. Slight variations in color may occur depending on lighting conditions and screen settings.
Please review all photographs and the certificate carefully before placing your bid.
Royal Antwerp Gem – Antwerp, Belgium
Seller's Story
Paraiba is a Belgium-based gemstone dealer with a passion for exceptional natural gemstones and mineral treasures from around the world.
For many years, we have personally sourced and selected gemstones through trusted networks of miners, cutters, collectors, and dealers across Asia, Africa, South America, and Europe. Every stone is chosen individually based on its beauty, character, rarity, and overall value.
We work exclusively with respected gemological laboratories and independent experts, including renowned institutions in Antwerp, one of the world’s most important centers for the gemstone and diamond trade. Whenever possible, gemstones are accompanied by professional certification to provide buyers with additional confidence and transparency.
Our philosophy is simple: we sell only gemstones that we would proudly add to our own collection. We believe that every gemstone has a story, and we take great care in presenting each piece honestly and accurately.
Today, with more than 500 successful sales and a 100% customer satisfaction score, we continue our search for remarkable gemstones across the globe, bringing unique finds directly to collectors, investors, jewelers, and gemstone enthusiasts.
Thank you for visiting Paraiba and sharing our passion for natural treasures.
Details
Lab report number
1830019232AN
Gemstone type
Sapphire
Total carat weight
1.79
Gemstone colour
Blue, Green
Transparency
Transparent
Clarity grade
Eye clean
Treatment
Heat treatment
Laboratory report
Gem Report Antwerp (GRA)
Sealed by laboratory
No
Title additional information
Natural Basaltic Sapphire
Shape
Oval
Cutting style
Mixed cut
Disclaimer
Catawiki always aims to offer you the best possible buying experience. Our experts virtually review and select every object in line with our submission guidelines. While we strive to provide a detailed description and photographs of each jewellery object, discrepancies or inaccuracies may occur. It is your responsibility to review all of the information provided about an object, including the condition and description, before placing an order. Sellers are responsible for the information, pictures and description provided, including the quality, quantity and nature of the jewelry supplied. A small imperfection that cannot be seen in the photo but is included in the description is not a non-conformity. A Lab Report is not a guarantee, valuation or appraisal regarding the articles described therein. A Lab Report contains only the characteristics of an article described after it has been graded, tested, examined, and analyzed using the techniques and equipment used at the time of the examination from that specific Lab. The results of any other examination performed on the article may differ depending when, how, by whom and with which grading standard the article is examined. In addition, any changes and improvements in techniques and equipment that may have occurred which may enable the examiner to detect, among other things, the use of processes for altering the characteristics of an article which use was previously undetectable, does not automatically mean the object does not conform to its description.
Catawiki always aims to offer you the best possible buying experience. Our experts virtually review and select every object in line with our submission guidelines. While we strive to provide a detailed description and photographs of each jewellery object, discrepancies or inaccuracies may occur. It is your responsibility to review all of the information provided about an object, including the condition and description, before placing an order. Sellers are responsible for the information, pictures and description provided, including the quality, quantity and nature of the jewelry supplied. A small imperfection that cannot be seen in the photo but is included in the description is not a non-conformity. A Lab Report is not a guarantee, valuation or appraisal regarding the articles described therein. A Lab Report contains only the characteristics of an article described after it has been graded, tested, examined, and analyzed using the techniques and equipment used at the time of the examination from that specific Lab. The results of any other examination performed on the article may differ depending when, how, by whom and with which grading standard the article is examined. In addition, any changes and improvements in techniques and equipment that may have occurred which may enable the examiner to detect, among other things, the use of processes for altering the characteristics of an article which use was previously undetectable, does not automatically mean the object does not conform to its description.
