1930�s bi-colour cluster ring featuring a central coral cameo depicting a woman�s head in platinum bezel setting surrounded by a cluster of sixteen rose cut diamonds. The shank of the ring and the flower petal gallery are rendered in yellow gold. Antique jewelry object group: ring Condition: very good condition Country of origin: Although it does not carry any legible control marks we believe this to be of Belgian origin. Style: Vintage Period: ca. 1930 Theme: Ladys head Material: platinum and 18K yellow gold Technique: Cameo is a method of carving, or an item of jewellery or vessel made in this manner. It features a raised (positive) relief image. There are three main materials for Cameo carving; Shells or Agate (called a Hardstone cameo), and glass. Cameos can be produced by setting a carved relief, such as a portrait, onto a background of a contrasting colour. This is called an assembled cameo. Alternately, a cameo can be carved directly out of a material with integral layers or banding, such as (banded) agate or layered glass, where different layers have different colours. Sometimes dyes are used to enhance these colours. Cameos are often worn as jewellery. Stone cameos of great artistry were made in Greece dating back as far as the 6th century BC. They were very popular in Ancient Rome, and one of the most famous stone cameos from this period is the Gemma Claudia made for the Emperor Claudius. The technique has since enjoyed periodic revivals, notably in the early Renaissance, and again in the 17th, 18th and 19th centuries. Diamonds: rose cut diamonds. We do not have the weight of the diamonds which is normal in our trade when it comes to rose cuts. Note: All diamond weights, color grades and clarity are approximate since the stones were not removed from their mounts to preserve the integrity of the setting. Precious stones: coral the nose of the lady shows traces of wear. Birthstones: Diamond is the birthstone (or month stone) for April. Hallmarks: "PL" and "18C" indicating platinum and 18K gold Dimensions: top of ring 2,30 cm (0,91 inch) x 1,70 cm (0,67 inch) Weight: 5,20 gram (3,34 dwt) Ring size Continental: 58 & 18_ , Size US 8_ , Size UK: Q Resizing: Free resizing (only for extreme resizing we have to charge). Reference N: 14083-0064 Copyright photography: Adin, fine antique jewelry