Blue Sapphire - 3.43 ct - Lotus Gemology - Unheated/Basalt related
05
days
19
hours
50
minutes
07
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Starting bid
€ 1
Reserve price not met
Expert
Selected by Francesca Floramo
Graduate gemmologist from GIA with 20 years jewellery experience, specialising in brand jewellery.
Retail Estimate € 3,000 - € 3,700
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Blue sapphire, natural corundum from Nigeria, 3.43 carats, with no evidence of treatment.
AI-assisted summary
Description from the seller
Natural Nigeria-origin Sapphire/Corundum knowledge of local sources
(trace detection/remains of alkaline basalt detected)
Variant: Blue Sapphire "Very deep Blue" (light yellowish/greenish refraction under daylight *almost sunlight)
Identified and certified in Bangkok,
at the Lotus Gemology Laboratory (Thailand)
Full 'Gold' certificate of analysis no. 7696-4888 plus the pin code* [see photos]
Purity clarity color: Infinitesimal natural inclusions, which, in full daylight, unfold a deep blue "marine" base and pure to the naked eye,
at certain angles and enhanced by an excellent antique cushion cut, with "rays of reflections" of a light yellow/green very attractive.
Weight: 3.43 carats (Collector*: weight/dimensions/untreated/precise faceted proportions)
Dimensions: 8.15 x 8.08 x 5.28 mm
Easily regarded as an investment or labeled as "Collector-Grade"
This Sapphire, sourced from fair trade across the entire import chain
(minimal, due to the few intermediaries and the knowledge of local miners and cutter)
It is perfect for all that a Sapphire can offer in terms of possibilities, of course,
Multiple projects possible in prospect or simply an investment (personal or professional). it will surely be part of a very beautiful story in its ongoing journey..
No indications of heat treatment detected.
Delivery:
International:
- DHL Express/ UPS express, professional, fully trusted and safe, (traceable) 24/48h
National:
- Bpost in registered mail 24h pro (traceable) insurance included
****Customs & Taxes:
- Your country of residence may impose additional duties and import taxes. VAT calculations are based on your country’s tax system.
We cannot be held responsible for additional charges incurred for importing items into the buyer’s country of residence.
*Please note that the buyer is always responsible for customs duties on international shipments.
If you wish to know the detailed amount, please contact your regional tax office.
****
-Important: For deliveries to France, a customs broker is required to handle the customs clearance process.
This may incur additional charges, which are also the buyer’s responsibility. If you wish to know the exact amount, please contact your regional customs or tax office.
****
Seller's Story
Combining foundational expertise acquired from premier Belgian gemological institutions with an international sourcing network, the enterprise delivers fine natural gemstones to a global clientele of collectors and investors. Driven by an unyielding commitment to gemological culture and scientific transparency, the curated auction portfolio showcases verified rarities selected for superior cut, optical clarity, and geological significance. Supported by years of commercial expansion and formal industry validation, the firm bridges technical verification with accessible luxury, providing complete operational transparency, certified authenticity, and an elevated buying experience across every transaction.
Natural Nigeria-origin Sapphire/Corundum knowledge of local sources
(trace detection/remains of alkaline basalt detected)
Variant: Blue Sapphire "Very deep Blue" (light yellowish/greenish refraction under daylight *almost sunlight)
Identified and certified in Bangkok,
at the Lotus Gemology Laboratory (Thailand)
Full 'Gold' certificate of analysis no. 7696-4888 plus the pin code* [see photos]
Purity clarity color: Infinitesimal natural inclusions, which, in full daylight, unfold a deep blue "marine" base and pure to the naked eye,
at certain angles and enhanced by an excellent antique cushion cut, with "rays of reflections" of a light yellow/green very attractive.
Weight: 3.43 carats (Collector*: weight/dimensions/untreated/precise faceted proportions)
Dimensions: 8.15 x 8.08 x 5.28 mm
Easily regarded as an investment or labeled as "Collector-Grade"
This Sapphire, sourced from fair trade across the entire import chain
(minimal, due to the few intermediaries and the knowledge of local miners and cutter)
It is perfect for all that a Sapphire can offer in terms of possibilities, of course,
Multiple projects possible in prospect or simply an investment (personal or professional). it will surely be part of a very beautiful story in its ongoing journey..
No indications of heat treatment detected.
Delivery:
International:
- DHL Express/ UPS express, professional, fully trusted and safe, (traceable) 24/48h
National:
- Bpost in registered mail 24h pro (traceable) insurance included
****Customs & Taxes:
- Your country of residence may impose additional duties and import taxes. VAT calculations are based on your country’s tax system.
We cannot be held responsible for additional charges incurred for importing items into the buyer’s country of residence.
*Please note that the buyer is always responsible for customs duties on international shipments.
If you wish to know the detailed amount, please contact your regional tax office.
****
-Important: For deliveries to France, a customs broker is required to handle the customs clearance process.
This may incur additional charges, which are also the buyer’s responsibility. If you wish to know the exact amount, please contact your regional customs or tax office.
****
Seller's Story
Combining foundational expertise acquired from premier Belgian gemological institutions with an international sourcing network, the enterprise delivers fine natural gemstones to a global clientele of collectors and investors. Driven by an unyielding commitment to gemological culture and scientific transparency, the curated auction portfolio showcases verified rarities selected for superior cut, optical clarity, and geological significance. Supported by years of commercial expansion and formal industry validation, the firm bridges technical verification with accessible luxury, providing complete operational transparency, certified authenticity, and an elevated buying experience across every transaction.
Details
Lab report number
7696-4888
Gemstone type
Sapphire
Total carat weight
3.43
Gemstone colour
Blue
Transparency
Transparent
Treatment
No evidence of treatment
Origin as given on certificate
Nigeria
Laboratory report
Lotus Gemology
Sealed by laboratory
No
Title additional information
Unheated/Basalt related
Shape
Cushion
Cutting style
Faceted cut
Sold by
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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.
