We found 566841 price guide item(s) matching your search
There are 566841 lots that match your search criteria. Subscribe now to get instant access to the full price guide service.
Click here to subscribe- List
- Grid
-
566841 item(s)/page
GOLD, DIAMOND AND SYNTHETIC VERNEUIL RUBY RING, AUSTRO-HUNGARIAN, CIRCA 1910 the carved oval synthetic ruby mounted with a central collet set circular diamond in an openwork ovoid bezel between spear head shoulders on a reeded shank, 14 carat Viennese gold mark for 1866-1922, 9 carat gold London assay mark size T The first synthetic rubies were attempted in 1837 by Marc Gaudin and later developed in 1877 by the French chemists Edmond Frémy and Charles Feil. It was not until 1904 that Frémy and Auguste Verneuil invented a furnace which could produce a 'boule' that commercial production became feasible. An artificial/synthetic stone has all the qualities that are desirable in a natural stone, except they are made in a laboratory. They have the same appearance, chemical composition and therefore physical characteristics of a natural stone. These include: their crystal structure, how they refract light (Refractive Index), colour dispersion, Specific Gravity and most importantly for the wearer, hardness. This ring is stamped with Austro-Hungarian fourteen carat gold marks used between 1866-1922, indicating that this Verneuil ruby is a historically interesting early product of the flame fusion technique pioneered by Frémy and Verneuil. At the time, whilst producing a marvellous colour, this stone would have arguably been as costly and difficult to create as a natural, mined example.
SCARAB SWIVEL RING, LATE 19TH CENTURY the unglazed ceramic scarab bead set in a swivel ring revealing intaglio carving set between shoulders decorated with rope work, size L; together with a turquoise necklace, 1900s, set with three polished turquoise on a fine gold chain, length 365mm approximately
An 18ct gold tourmaline and diamond dress ring, the rectangular shape indicolite tourmaline with brilliant cut diamond openwork shoulders, hallmarks for Birmingham, estimated total diamond weight 0.30ct, ring size O, gross weight 9.6g.Condition report: Overall condition good Scratches and abrasion in keeping with occasional wear Tourmaline a dark bluish green to greenish blue with good saturation and typical inclusions Approx. dimensions of tourmaline 12.1 by 10.4 by 8.5mm Diamonds bright and well matched Maker's mark R&C
An 18ct gold diamond dress ring, designed as a brilliant cut diamond line with asymmetric shoulders, hallmarks for Sheffield, 1987, estimated total diamond weight 0.45ct, ring size N, gross weight 4.8g.Condition report: Overall condition good Light scratches and abrasion in keeping with occasional wear Diamonds bright and well matched
An 18ct gold diamond cluster ring, of asymmetric design, the brilliant cut diamond dome with grooved crossover surround, hallmarks for London, estimated total diamond weight 1.60cts, ring size M, gross weight 10g.Condition report: Overall condition good to fair Scratches dents and discolouration in keeping with age and wear Hallmarks partially worn Ring resized Ring slightly misshapen Diamonds bright and well matched
An impressive 18ct gold diamond single stone ring, the square cut diamond with baguette cut diamond tapered shoulders, principal diamond weight 4.03cts, estimated colour J-K, estimated clarity VS, ring size K, gross weight 4.3g.Condition report: Overall condition goodLight scratches and discolouration in keeping with age and wearDiamond with only very light scattered inclusions, very difficult to spot with magnificationSurrounding diamonds bright and well matchedStamped 18ct
An 18ct gold diamond cluster ring, the brilliant cut diamond line with similarly cut diamond graduated sides, import marks for London, 1998, estimated total diamond weight 1.10cts, ring size N, gross weight 5.1g.Condition report: Overall condition good Scratches and discolouration in keeping with wear Diamonds bright and fairly well matched - light and dark inclusions visible with magnification - some surface reaching
An 18ct gold tanzanite and diamond cluster ring, the oval shape tanzanite within an undulating tapered baguette cut diamond surround, hallmarks for London, ring size M, gross weight 4.6g.Condition report: Condition good Minor abrasion to tanzanite in keeping with light wear, visible with magnification Diamonds fairly well matched Makers mark Iliana
An 18ct gold Sri Lankan sapphire and diamond three stone ring, the cushion shape Sri Lankan sapphire weighing approx. 3cts, with old cut diamond sides, estimated total diamond weight 0.75ct, estimated colour I-J, estimated clarity P1-P2, ring size P1/2, gross weight 3.5g. Accompanied by a GCS report, number 79234-69, dated 23.9.19 stating that the sapphire is Sri Lankan, no heat treatment.
An 18ct gold diamond band ring, the brilliant cut diamond line inset to the polished band, hallmarks for London, 1975, estimated total diamond weight 0.65ct, ring size O1/2, gross weight 4.1g.Condition report: Overall condition good Light scratches, abrasion and discolouration in keeping with general wear Individual size and setting of diamonds prevents grade estimation Diamonds well matched
An 18ct gold diamond five stone ring, designed as an old cut diamond line with crossover shoulders, hallmarks for Birmingham, 1975, estimated total diamond weight 2cts, estimated colour J-K, estimated clarity P1-P2, ring size L, gross weight 5.1g.Condition report: Overall condition good to fair Scratches and discolouration in keeping with age and wear Ring resized Maker's marks B&S Diamonds bright and lively Some diamonds with surface reaching fractures
An 18ct gold diamond band ring, the pav é set diamond band with polished sides, hallmarks for Edinburgh, estimated total diamond weight 1.50cts, ring size S1/2, gross weight 10.1g.Condition report: Overall condition good to fair Scratches and discolouration in keeping with wear Diamonds bright and well matched Maker's mark 'CH'
A sapphire and diamond dress ring, the oval shape sapphire with baguette cut diamond sides and similarly cut diamond tapered shoulders, stamped 750, estimated total diamond weight 0.90ct, ring size K, gross weight 6.3g.Condition report: Overall condition good Ring resized Some wear to rhodium plating, yellow gold showing through to ring band Sapphire a medium blue with fair saturation and typical inclusions Angular colour zoning visible in sapphire Approx. dimensions of sapphire 10 by 7.85 by 4.6mm Some light abrasion to facet edges visible with magnification Diamonds bright and well matched Some adhesive to a couple of diamond settings
An early 20th Century 18ct gold diamond five stone ring, the old cut diamond line inset to the polished band, hallmarks for London, 1913, estimated total diamond weight 0.70ct, ring size V1/2, gross weight 6.9g.Condition report: Overall condition good to fair Scratches and abrasion in keeping with wear Diamonds fairly well matched Diamonds with chips, surface reaching inclusions and fractures, visible with magnification
A late Victorian 18ct gold ruby and diamond dress ring, the cushion shape ruby line with old cut diamond duo spacers and scrolling shoulders, hallmarks for Birmingham, 1896, ring size Q1/2, gross weight 4.9g.Condition report: Overall condition good to fair Scratches, abrasion and discolouration in keeping with age and wear One diamond chipped Rubies with abrasion to facet edges and joins Rubies a medium to dark very slight pinkish red with good saturation and typical inclusions Ring resized Hallmarks partially indistinct
-
566841 item(s)/page