Pendant - 18 kt. White gold - 16.61ct. tw. Ruby - Diamond
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€ 50
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Expert
Selected by Lina Plokhova
Specialises in post-2000 pre-owned jewellery. GIA diamond and diamond grading graduate.
Estimate € 3,900 - € 4,700
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18 karat white gold pendant featuring a natural ruby (13.61 ct) with a double halo of natural diamonds (approximately 3.00 ct) and a laboratory report from Centro Analisi Gemmologiche (Pio Visconti) no chain, in excellent pre-owned condition.
AI-assisted summary
Description from the seller
18 KT White Gold Pendant with Natural Ruby (Corundum) 13.61 ct and Natural Diamonds about 3.00 ct – Gemological Certificate
Description
Elegant 18 KT white gold pendant (750/1000), enriched by a significant natural ruby (corundum) and by a luminous double diamond entourage of natural diamonds.
This is a piece with notable presence, featuring a central gem of substantial carat weight and a classic, balanced workmanship able to enhance the neckline with refinement and personality.
Natural Ruby (Corundum)
Weight: 13.61 ct
Cut: mixed oval brilliant
Dimensions: approximately 17.61 x 13.74 x 6.35 mm
Color: red
Clarity: transparent
As reported in the gemological certificate, the gem is identified as natural ruby variety corundum.
The present pendant has in the past been the subject of additional gemological documentation in which the ruby was indicated as originating from Myanmar (Burma), one of the historically most valued sources for this gem family.
The current gemological certificate attached identifies the gem as natural corundum, ruby variety, without listing geographic origin.
Declared treatment: infiltration (glass-filled).
Natural Diamonds
The central ruby is enhanced by an elegant double entourage of brilliant-cut diamonds.
Inner ring: 20 diamonds (0.0625 ct each by weight)
Outer ring: 27 diamonds (0.0625 ct weight each)
Pendant ring: 1 main diamond + 3 small diamonds
As stated in the gemological certificate from the Gemmological Analysis Center of Dr. Pio Visconti, the diamonds have been verified as natural and present the following characteristics:
Color: G/H
Clarity: VS
Total diamond carat weight: about 3.00 ct
The pendant also features three additional small diamonds on the chain pass-through ring, in addition to the diamonds forming the double entourage around the central ruby.
The diamonds stand out for their remarkable brilliance and contribute to an elegant sparkle around the central ruby.
Mounting
18 KT white gold (750/1000)
Total weight: about 12.66 g
Indicative period: 2000s
The setting features classic and elegant lines that enhance the beauty of the central gem.
Note: the jewelry is sold without a chain.
Certification
Original gemological certificate issued by:
Center for Gemological Analysis of Dr. Pio Visconti – Valenza
Certificate No. C226183 – April 2026
Conditions
Used jewelry in overall excellent condition.
Recently verified at the Center for Gemological Analysis of Dr. Pio Visconti (Valenza) and sealed directly by the lab in an official container.
Only a slight superficial mark on the ruby is noted, akin to a small scratch due to normal use over time and visible only upon careful inspection.
This mark is purely superficial and does not affect the gem’s stability, safety, or overall appearance of the jewelry.
Shipping
The jewelry has recently undergone gemological verification at the Center for Gemological Analysis of Dr. Pio Visconti (Valenza).
Following the checks, the pendant was sealed directly by the laboratory in an official container to guarantee correspondence between the jewelry and the accompanying gemological documentation.
Shipping will be via DHL Express:
- fully trackable
- insured for the full sale amount
- carefully packaged
The pendant will be shipped with the original gemological certificate and the laboratory’s official seal.
To ensure maximum security, the package will be delivered personally at the DHL center in the Malpensa area. DHL staff will verify the correspondence between the package contents and the attached documentation before accepting the shipment.
This process offers a high level of security and traceability throughout all transport stages.
Delivery in an elegant jewelry box (not original).
Note
The photographs were taken in different lighting conditions to represent the jewelry as realistically as possible.
The diamonds appear particularly bright and sparkling in person. Since no professional photography equipment or specialized jewelry lighting was used, the images may not fully capture their actual brilliance and the play of reflections visible in person.
Color, reflections, and transparency may also appear slightly different depending on lighting and the device used to view.
Further Information
About two months ago I sold via Catawiki a ring from the same collection, featuring ruby and diamonds with similar gemological characteristics.
The shipment was handled with the same security procedures described in this listing and the transaction concluded with the buyer’s full satisfaction, who left positive feedback on the platform.
I have chosen to apply the same level of attention to gemological verification, packaging, and shipping for this jewel so that the buyer may receive it in the best possible condition.
18 KT White Gold Pendant with Natural Ruby (Corundum) 13.61 ct and Natural Diamonds about 3.00 ct – Gemological Certificate
Description
Elegant 18 KT white gold pendant (750/1000), enriched by a significant natural ruby (corundum) and by a luminous double diamond entourage of natural diamonds.
This is a piece with notable presence, featuring a central gem of substantial carat weight and a classic, balanced workmanship able to enhance the neckline with refinement and personality.
Natural Ruby (Corundum)
Weight: 13.61 ct
Cut: mixed oval brilliant
Dimensions: approximately 17.61 x 13.74 x 6.35 mm
Color: red
Clarity: transparent
As reported in the gemological certificate, the gem is identified as natural ruby variety corundum.
The present pendant has in the past been the subject of additional gemological documentation in which the ruby was indicated as originating from Myanmar (Burma), one of the historically most valued sources for this gem family.
The current gemological certificate attached identifies the gem as natural corundum, ruby variety, without listing geographic origin.
Declared treatment: infiltration (glass-filled).
Natural Diamonds
The central ruby is enhanced by an elegant double entourage of brilliant-cut diamonds.
Inner ring: 20 diamonds (0.0625 ct each by weight)
Outer ring: 27 diamonds (0.0625 ct weight each)
Pendant ring: 1 main diamond + 3 small diamonds
As stated in the gemological certificate from the Gemmological Analysis Center of Dr. Pio Visconti, the diamonds have been verified as natural and present the following characteristics:
Color: G/H
Clarity: VS
Total diamond carat weight: about 3.00 ct
The pendant also features three additional small diamonds on the chain pass-through ring, in addition to the diamonds forming the double entourage around the central ruby.
The diamonds stand out for their remarkable brilliance and contribute to an elegant sparkle around the central ruby.
Mounting
18 KT white gold (750/1000)
Total weight: about 12.66 g
Indicative period: 2000s
The setting features classic and elegant lines that enhance the beauty of the central gem.
Note: the jewelry is sold without a chain.
Certification
Original gemological certificate issued by:
Center for Gemological Analysis of Dr. Pio Visconti – Valenza
Certificate No. C226183 – April 2026
Conditions
Used jewelry in overall excellent condition.
Recently verified at the Center for Gemological Analysis of Dr. Pio Visconti (Valenza) and sealed directly by the lab in an official container.
Only a slight superficial mark on the ruby is noted, akin to a small scratch due to normal use over time and visible only upon careful inspection.
This mark is purely superficial and does not affect the gem’s stability, safety, or overall appearance of the jewelry.
Shipping
The jewelry has recently undergone gemological verification at the Center for Gemological Analysis of Dr. Pio Visconti (Valenza).
Following the checks, the pendant was sealed directly by the laboratory in an official container to guarantee correspondence between the jewelry and the accompanying gemological documentation.
Shipping will be via DHL Express:
- fully trackable
- insured for the full sale amount
- carefully packaged
The pendant will be shipped with the original gemological certificate and the laboratory’s official seal.
To ensure maximum security, the package will be delivered personally at the DHL center in the Malpensa area. DHL staff will verify the correspondence between the package contents and the attached documentation before accepting the shipment.
This process offers a high level of security and traceability throughout all transport stages.
Delivery in an elegant jewelry box (not original).
Note
The photographs were taken in different lighting conditions to represent the jewelry as realistically as possible.
The diamonds appear particularly bright and sparkling in person. Since no professional photography equipment or specialized jewelry lighting was used, the images may not fully capture their actual brilliance and the play of reflections visible in person.
Color, reflections, and transparency may also appear slightly different depending on lighting and the device used to view.
Further Information
About two months ago I sold via Catawiki a ring from the same collection, featuring ruby and diamonds with similar gemological characteristics.
The shipment was handled with the same security procedures described in this listing and the transaction concluded with the buyer’s full satisfaction, who left positive feedback on the platform.
I have chosen to apply the same level of attention to gemological verification, packaging, and shipping for this jewel so that the buyer may receive it in the best possible condition.
Details
Era
After 2000
Shape of surrounding stones
Round
Total carat weight of all stones
16.61
Laboratory report
Centro Analisi Gemmologiche (Pio Visconti)
No. of main gemstones
52
Lab report number
C226183
Diamond type of surrounding stones
Natural
Cutting style of surrounding stones
Brilliant cut
Fineness
18 kt.
Brand jewellery
No
Total carat weight of main stone(s)
13.61
Number of diamonds surrounding stones
50
Metal
White gold
Total carat weight of surrounding stones
3.00
Colour of main stone
Red
Main stone
Ruby
Diamond clarity grade of surrounding stones
SI1
Total weight
12.66 g
Surrounding stones
Diamond
Cut grade of main stone
Very good
Transparency of main stone
Transparent
Condition
Excellent condition - barely used with minimal signs of wear
Gender
Women
Country of origin
Italy
Treatment of main stone
Fracture filling
Shape of main stone
Oval
Cutting style of main stone
Faceted cut
Width
13.74 mm
Length
17.61 mm
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.
