This sapphire and diamond is packed with different techniques. The central diamond is secured at the cardinal points by gold wire, attaching it to an openwork mount pav�-set with cushion-shaped diamonds alternating with stripes of calibr�-cut sapphires. This extraordinary central section is supported by shoulders designed as leaves and embellished with additional diamonds - a wonderful finishing touch to this imaginative, technically accomplished and extremely attractive ring.Date & Design Period: Circa 1900 | EdwardianTreatment: Unheated/untreated (assessed by our GIA qualified gemologist). The sapphire is likely to be of Sri Lankan origin, this will be stated on the certificate of authenticity.Metal Composition: Platinum Central diamond; Length 5.7mm; Width 5.7mm; Depth; 3.3mm. Approximate weight: 0.60ct. Clarity; VS1 Colour; G. Cut; transitional brilliant-cut.Surrounding diamond weight: 0.40ct. Average Clarity; VS2 Colour; G/H. Cut; single-cut. All diamonds very bright, lively and matching, all appear original to the ring. Sapphire : Total sapphire weight: 0.60ct (estimated) Band Size:UK M 1/2 / US 6.25. Single complimentary re-size available. This ring can easily be re-sized.We believe that antique rings are the ethical, sustainable way to enjoy luxury - without the environmental costs of modern mining processes.