Ring Platinum Sapphire - Diamond - Fine color quality
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Platinum ring featuring a 5.15-carat blue cushion-cut natural sapphire, surrounded by 28 natural diamonds (0.27 ct total), IGI-certified (report 80J9210425 / ALGT 820571511), origin Sri Lanka, size US 6¾, condition like new with no indications of heating.
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Description from the seller
Natural Sapphire Ring certified by ALGT and IGI
Important Origin: Sri Lanka, Ceylon, with no indication of heating.
IGI Report Number: 80J9330625
December 17, 2025
Description of Article
One Platinum Ring, weighing in total 5.18 g, containing
One (1) Sapphire
Estimated Weight: 5.15 Carats
and
Twenty Eight (28) Natural Diamonds
Total Estimated Weight: 0.27 Carat
Photography is approximate
ONE (1) CUSHION MIXED CUT SAPPHIRE
Species: Natural Corundum
Measurements: 8.70 × 11.80 mm
Estimated Weight: 5.15 Carats
Color/Transparency: Blue
Characteristics: Natural inclusion(s) pattern
Comments: Exceptional Color Quality
No indications of heating
ALGT Report number: 820571511
Origin: Sri Lanka (Ceylon)*
*The physical and chemical characteristics of the analyzed sapphire are similar to those found in sapphires from Sri Lanka (Ceylon)
No indication of heating.
Natural sapphires contain natural inclusions and may contain insignificant surface-reaching inclusions. These characteristics do not compromise the structural integrity or durability of the gemstone and setting. Furthermore, they serve as unique identifiers, providing definitive proof of the stone's natural and geological origins; this sapphire contains unique crystal inclusions.
Ring Size: 6.5 US
Fineness: Platinum 900
Shipping from Hong Kong:
A VAT number will be attached to your parcel for VAT deduction, where applicable. Please retain your receipt, as you may need to contact customer service for a VAT refund if you are charged VAT by your local customs authority.
Shipping Fees:
Shipping fees are calculated and charged per item, not per shipment, and cannot be combined. However, if you wish to combine multiple purchases into a single shipment to save on administrative and duty stamps, please contact the seller directly.
Import Duties:
Customers are responsible for all applicable import duties. Most EU countries apply duty rates of approximately 5% of the item's value.
Order Cancellation:
In the event of order cancellation, the buyer is responsible for any inbound and outbound shipping costs.
Natural Sapphire Ring certified by ALGT and IGI
Important Origin: Sri Lanka, Ceylon, with no indication of heating.
IGI Report Number: 80J9330625
December 17, 2025
Description of Article
One Platinum Ring, weighing in total 5.18 g, containing
One (1) Sapphire
Estimated Weight: 5.15 Carats
and
Twenty Eight (28) Natural Diamonds
Total Estimated Weight: 0.27 Carat
Photography is approximate
ONE (1) CUSHION MIXED CUT SAPPHIRE
Species: Natural Corundum
Measurements: 8.70 × 11.80 mm
Estimated Weight: 5.15 Carats
Color/Transparency: Blue
Characteristics: Natural inclusion(s) pattern
Comments: Exceptional Color Quality
No indications of heating
ALGT Report number: 820571511
Origin: Sri Lanka (Ceylon)*
*The physical and chemical characteristics of the analyzed sapphire are similar to those found in sapphires from Sri Lanka (Ceylon)
No indication of heating.
Natural sapphires contain natural inclusions and may contain insignificant surface-reaching inclusions. These characteristics do not compromise the structural integrity or durability of the gemstone and setting. Furthermore, they serve as unique identifiers, providing definitive proof of the stone's natural and geological origins; this sapphire contains unique crystal inclusions.
Ring Size: 6.5 US
Fineness: Platinum 900
Shipping from Hong Kong:
A VAT number will be attached to your parcel for VAT deduction, where applicable. Please retain your receipt, as you may need to contact customer service for a VAT refund if you are charged VAT by your local customs authority.
Shipping Fees:
Shipping fees are calculated and charged per item, not per shipment, and cannot be combined. However, if you wish to combine multiple purchases into a single shipment to save on administrative and duty stamps, please contact the seller directly.
Import Duties:
Customers are responsible for all applicable import duties. Most EU countries apply duty rates of approximately 5% of the item's value.
Order Cancellation:
In the event of order cancellation, the buyer is responsible for any inbound and outbound shipping costs.
Details
Shape of surrounding stones
Round
Free resizing offered
No
No. of main gemstones
1
Lab report number
80J9210425
Diamond type of surrounding stones
Natural
Laboratory report
International Gemological Institute (IGI)
Era
After 2000
Cutting style of surrounding stones
Brilliant cut
Brand jewellery
No
Number of diamonds surrounding stones
28
Metal
Platinum
Total carat weight of main stone(s)
5.15
Main stone
Sapphire
Total carat weight of surrounding stones
0.27
Colour of main stone
Blue
Cut grade of main stone
Excellent
Total weight
5.18 g
Surrounding stones
Diamond
Transparency of main stone
Transparent
Condition
As new - unused
Clarity grade of main stone
Moderate
Gender
Women
Treatment of main stone
No evidence of treatment
Title additional information
Fine color quality
Shape of main stone
Cushion
Cutting style of main stone
Mixed cut
Country of origin of main stone (if certified)
Sri Lanka
Ring size
54 (EU) / 14 (IT) / 6 ¾ (US)
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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.
