1 pcs Blue Sapphire - 4.18 ct - Bellerophon Gemlab
04
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21
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22
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24
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Current bid
€ 200
Reserve price not met
Expert
Selected by Purificacion Aquino Garcia
Holds a gemmology degree from IGE Madrid and an MBA from University of Santiago de Compostela.
Retail Estimate € 9,000 - € 11,000
2 other people are watching this object
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Natural sapphire, 1 stone, 4.18 carats, blue, oval cut, unheated and loupe-clean, from Sri Lanka, certified by Bellerophon Gemlab (Report No. B38209).
AI-assisted summary
Description from the seller
Here is an exceptional, investment grade loupe clean natural vivid blue sapphire from Sri Lanka, fully certified by the Bellerophon Gemlab in Paris. The pictures do not make any justice on how clean this Sapphire and vivid it is.
What makes this gemstone stand out is its impressive size of over 4 carats combined with the fact that it is completely natural and unheated. Only a very small percentage of sapphires are mined with a natural color and clarity high enough to avoid heat treatment.
The sapphire displays a beautiful, bright blue color. The oval cut is expertly done, giving the stone excellent sparkle and allowing light to reflect wonderfully throughout the gem. It is a highly transparent, eye catching stone that would look stunning set in a custom piece of jewelry or kept safely in a gemstone collection.
Gemstone Details (Report No. B38209):
Species: Natural Sapphire
Weight: 4.185 carats
Measurements: 10.36 x 7.30 x 6.27 mm
Shape: Oval
Colour: Blue
Treatment: No indications of heating (100% untreated)
Origin: Ceylon (Sri Lanka)
Certificate: Bellerophon Gemlab S.A.S (January 24, 2025)
Shipping & Important Information:
Shipping: The gemstone will be carefully packed and shipped via a fully insured, trackable delivery service (FedEx or DHL Express).
Customs & Taxes: Please note that buyers may be responsible for extra customs duties and import taxes depending on their country of residence. The buyer is responsible for any extra costs incurred for importing items. Please check with your local tax office for the exact amounts before bidding.
Seller's Story
Welcome to A.J.N.L. Atelier, a specialized curator of top tier natural gemstones and high-quality diamonds. Built on a foundation of pure tradition and high quality, we operate with the rigorous standards of a luxury maison. We bypass standard commercial stones to focus exclusively on premium, investment grade selections. Our portfolio is curated for collectors, investors, and bespoke jewellers who demand uncompromised aesthetics and genuine scarcity. From exceptionally rare, unheated sapphires rubies and emeralds to strictly graded diamonds, every stone we offer is vetted for superior transparency, optimal proportions, and exact light performance.
Our Commitments:
Elite Curation we only offer 100% natural, high-tier gemstones. We strictly refuse to deal in synthetic, composite, or excessively treated materials.
Authoritative Certification: Complete transparency is our baseline every gemstone and diamond is accompanied by an independent laboratory report from the world’s most trusted and elite gemological institutes.
Ethical Integrity: We strictly adhere to the Kimberley Process for all diamonds, guaranteeing conflict-free and ethical origins.
Accurate Representation: We believe in objective, factual listings we provide exact measurements, precise condition grading, and unedited photography so you can bid with absolute confidence.
We invite you to explore our exclusive auction lots and experience a standard of gemological excellence built on expertise, tradition, and trust.
Here is an exceptional, investment grade loupe clean natural vivid blue sapphire from Sri Lanka, fully certified by the Bellerophon Gemlab in Paris. The pictures do not make any justice on how clean this Sapphire and vivid it is.
What makes this gemstone stand out is its impressive size of over 4 carats combined with the fact that it is completely natural and unheated. Only a very small percentage of sapphires are mined with a natural color and clarity high enough to avoid heat treatment.
The sapphire displays a beautiful, bright blue color. The oval cut is expertly done, giving the stone excellent sparkle and allowing light to reflect wonderfully throughout the gem. It is a highly transparent, eye catching stone that would look stunning set in a custom piece of jewelry or kept safely in a gemstone collection.
Gemstone Details (Report No. B38209):
Species: Natural Sapphire
Weight: 4.185 carats
Measurements: 10.36 x 7.30 x 6.27 mm
Shape: Oval
Colour: Blue
Treatment: No indications of heating (100% untreated)
Origin: Ceylon (Sri Lanka)
Certificate: Bellerophon Gemlab S.A.S (January 24, 2025)
Shipping & Important Information:
Shipping: The gemstone will be carefully packed and shipped via a fully insured, trackable delivery service (FedEx or DHL Express).
Customs & Taxes: Please note that buyers may be responsible for extra customs duties and import taxes depending on their country of residence. The buyer is responsible for any extra costs incurred for importing items. Please check with your local tax office for the exact amounts before bidding.
Seller's Story
Welcome to A.J.N.L. Atelier, a specialized curator of top tier natural gemstones and high-quality diamonds. Built on a foundation of pure tradition and high quality, we operate with the rigorous standards of a luxury maison. We bypass standard commercial stones to focus exclusively on premium, investment grade selections. Our portfolio is curated for collectors, investors, and bespoke jewellers who demand uncompromised aesthetics and genuine scarcity. From exceptionally rare, unheated sapphires rubies and emeralds to strictly graded diamonds, every stone we offer is vetted for superior transparency, optimal proportions, and exact light performance.
Our Commitments:
Elite Curation we only offer 100% natural, high-tier gemstones. We strictly refuse to deal in synthetic, composite, or excessively treated materials.
Authoritative Certification: Complete transparency is our baseline every gemstone and diamond is accompanied by an independent laboratory report from the world’s most trusted and elite gemological institutes.
Ethical Integrity: We strictly adhere to the Kimberley Process for all diamonds, guaranteeing conflict-free and ethical origins.
Accurate Representation: We believe in objective, factual listings we provide exact measurements, precise condition grading, and unedited photography so you can bid with absolute confidence.
We invite you to explore our exclusive auction lots and experience a standard of gemological excellence built on expertise, tradition, and trust.
Details
Number of stones
1
Lab report number
B38209
Gemstone type
Sapphire
Total carat weight
4.18
Gemstone colour
Blue
Clarity grade
Loupe clean
Treatment
No evidence of treatment, No heat treatment
Origin as given on certificate
Sri Lanka
Laboratory report
Bellerophon Gemlab
Sealed by laboratory
No
Shape
Oval
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.
