Art Deco 18ct Gold & Platinum Ornate Target Ring set with Diamonds & Emeralds

An unusual 18ct75% pure gold (or 750 parts pure gold and 250 parts other metals) More gold ring with a platinumDerives from the Spanish word 'platina' meaning 'little silver'. Acknowledged since the 1900s, platinum's durability and natural brightness has been and still is today highly treasured A metallic element prized for its rarity, whiteness, high tensile strength and insusceptibility to corrosion, platinum first became widely used in jewellery in the late ninete... More top that was made circa 1920. In the centre is a rub over set old mine cutAn 18th, 19th and early 20th century diamond shape, typically cushion or asymmetrical, marked by a small table, a high crown and a large culet. Culets are the small flat facets at the bottom of a stone which appear to the untrained eye as a hole in the middle of the stone. Before the advent of modern machinery which allows for the precise faceting we see tod... More diamondA precious, lustrous gemstone made of highly compressed carbon. Diamonds are one of the hardest materials known to mankind. Colours of diamonds range from colourless, yellow, orange and brown to almost black. Natural coloured (or ‘fancy’) diamonds can be extremely rare. The cut, colour, clarity and carat weight of a diamond are the criteria jewellers use... More that measures 0.45 caratsThe unit of weight for a diamond or other gemstone and also for a pearl. Abbreviated 'ct', 1 carat is equal to 0.2 grams. In reference to gold, a unit of purity or fineness of gold and gold alloy, expressed as a number out of 24 parts by weight, e.g. '24 carat' signifies pure gold, '18 carat' 18/24th gold in the alloy, et cetera.  Also abbreviated as 'c... More and is a bright white stone. It is surrounded by calibre cutTypically small, fancy-cut faceted stones in the shape of rectangles, squares, oblongs or other specialty shapes cut to fit very closely together in a setting to create a design that often outlines or accents a larger motif. Calibre-cut comes from the word calibration which means to divide or mark with gradations. This style of stone cutting was made popular... More emeralds within a yellow gold mount. Then a scalloped outer edge set with small diamonds. There is a further diamond set in to each of the shouldersThe point on a ring where the central section meets the shank or band, often carved, decorated or inlaid with small diamond accent stones. More.  It is a lovely design.

When worn it sits low on the finger making it a good candidate for an unusual engagement ring.