No reserve price - 1 pcs Blue, Grey, Green, Pink Sapphire - 1.96 ct - Antwerp Laboratory for Gemstone Testing (ALGT)
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€ 1
No reserve price
Expert
Selected by Francesca Floramo
Graduate gemmologist from GIA with 20 years jewellery experience, specialising in brand jewellery.
Retail Estimate € 1,000 - € 1,200
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Description from the seller
Natural color-change sapphire – 1.96 ct
A remarkable and characterful natural sapphire with a striking color-change effect. This oval-cut sapphire weighs 1.96 carats and measures 8.30 × 6.20 × 4.28 mm.
According to the accompanying ALGT Colored Stone Identification Report no. 42928748, dated March 10, 2025, it is a Natural Corundum – Color-Change Sapphire. The stone is transparent and on the report described as Light Greenish Blue/Pink. The special optical effect is the color change, causing the stone to display a different appearance under different lighting conditions.
The sapphire is set in an oval mixed cut, so the many facets create beautiful reflections and sparkle. The natural inclusions present give the stone a unique and authentic character.
Specifications
Stone type: Natural sapphire (corundum)
Variety: Color-Change Sapphire
Weight: 1.96 ct
Dimensions: 8.30 × 6.20 × 4.28 mm
Cut: Oval, mixed cut
Color: Light greenish blue / pink
Transparency: Transparent
Optical effect: Color-Change
Treatment: The ALGT report indicates indications of heating
Laboratory report: ALGT no. 42928748
A fine opportunity for collectors and lovers of exceptional sapphires. Especially the color-change effect, combined with the transparent material and the attractive oval cut, makes this stone a fascinating addition to a gemstone collection.
Comes with the illustrated ALGT report.
Natural color-change sapphire – 1.96 ct
A remarkable and characterful natural sapphire with a striking color-change effect. This oval-cut sapphire weighs 1.96 carats and measures 8.30 × 6.20 × 4.28 mm.
According to the accompanying ALGT Colored Stone Identification Report no. 42928748, dated March 10, 2025, it is a Natural Corundum – Color-Change Sapphire. The stone is transparent and on the report described as Light Greenish Blue/Pink. The special optical effect is the color change, causing the stone to display a different appearance under different lighting conditions.
The sapphire is set in an oval mixed cut, so the many facets create beautiful reflections and sparkle. The natural inclusions present give the stone a unique and authentic character.
Specifications
Stone type: Natural sapphire (corundum)
Variety: Color-Change Sapphire
Weight: 1.96 ct
Dimensions: 8.30 × 6.20 × 4.28 mm
Cut: Oval, mixed cut
Color: Light greenish blue / pink
Transparency: Transparent
Optical effect: Color-Change
Treatment: The ALGT report indicates indications of heating
Laboratory report: ALGT no. 42928748
A fine opportunity for collectors and lovers of exceptional sapphires. Especially the color-change effect, combined with the transparent material and the attractive oval cut, makes this stone a fascinating addition to a gemstone collection.
Comes with the illustrated ALGT report.
Details
Number of stones
1
Lab report number
42928748
Gemstone type
Sapphire
Total carat weight
1.96
Gemstone colour
Blue, Green, Grey, Pink
Optical effect
Colour change
Transparency
Transparent
Clarity grade
Severe
Treatment
Heat treatment
Origin as given on certificate
No origin given
Laboratory report
Antwerp Laboratory for Gemstone Testing (ALGT)
Sealed by laboratory
No
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.
