Ring - 18 kt. Yellow gold - 0.40ct. tw. Diamond (Natural) - Onyx - Size 54.5 is adjustable.






Experienced gemmologist with over 65 years specializing in antique and cameo jewellery.
| €250 | ||
|---|---|---|
| €210 | ||
| €6 | ||
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Antique 18K yellow gold ring (770 hallmark) with 18 natural diamonds totaling 0.40 ct set in an Art Deco design, a central Onyx feature, no laboratory report, ring size 54 EU with adjustable sizing.
Description from the seller
Ring size can be changed - see below.
Antique ring in 18 K / 770 gold. The rare alloy 770 is stamped into the ring band. The upper layer of the ring head is made of platinum (platinized). The ring head is in marquise shape. A total of 18 diamonds with antique European cut, weighing approximately 0.40 ct., are set. In the center, there is a matte black onyx in navette shape, featuring a cut edge running lengthwise. A small, seedless pearl adorns the middle.
Original antique and in very good antique condition.
Ring head dimensions: 16.6 mm, approximately 10.5 mm across.
Weight 2.9 grams
Stamped inside with 770 (for gold) and a symbol punch. It looks like a swan or capercaillie.
Ring size 54.5 / 17.4 mm - the ring size can be adjusted through us for 35 euros by approximately ±2 sizes, between 52-56.
Delivery in a jewelry box with a house certificate in PDF format — for the love of the environment.
Insured shipping with UPS/DHL.
Seller's Story
Ring size can be changed - see below.
Antique ring in 18 K / 770 gold. The rare alloy 770 is stamped into the ring band. The upper layer of the ring head is made of platinum (platinized). The ring head is in marquise shape. A total of 18 diamonds with antique European cut, weighing approximately 0.40 ct., are set. In the center, there is a matte black onyx in navette shape, featuring a cut edge running lengthwise. A small, seedless pearl adorns the middle.
Original antique and in very good antique condition.
Ring head dimensions: 16.6 mm, approximately 10.5 mm across.
Weight 2.9 grams
Stamped inside with 770 (for gold) and a symbol punch. It looks like a swan or capercaillie.
Ring size 54.5 / 17.4 mm - the ring size can be adjusted through us for 35 euros by approximately ±2 sizes, between 52-56.
Delivery in a jewelry box with a house certificate in PDF format — for the love of the environment.
Insured shipping with UPS/DHL.
Seller's Story
Details
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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.
