French Art Nouveau 18ct Gold & Platinum, Large Solitaire Diamond Ring with Ornate Rose Diamond Detail

This is a spectacular ring that was made in France circa 1900-1910. The shankThe circle of metal that attaches to the decorative part of a ring and encircles the finger. More is 18ct75% pure gold (or 750 parts pure gold and 250 parts other metals) More yellow gold and the top is 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. It is in the Art NouveauA movement within the arts, particularly jewellery, evolving out of a response to mass production and the industrial revolution (1890-1915). Jewellery of this period was heavily influenced by nature and femininity, with its sweeping lines and organic motifs. More style that was prevalent at that time and has been clawA precious metal prong used to hold a gemstone in place. More set with a large old European cutGemstones cut in this style have a smaller table than the round brilliant and the overall depth is greater. This style of cutting was popular in the 19th Century and is the direct predecessor to the modern round Brilliant Cut. Similar to the Old Mine Cut. 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 has an estimated weight of 2.00 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. It would have been selected for its subtle lemon yellow tint. Around it are rose diamonds that contrast beautifully with the large diamond with a small 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 diamond on 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. The ring is accompanied by a gemmological report stating that the diamonds are naturalA natural stone is called such because it has not been subjected to any treatments.  More stones (centre stone: colour approx O-P / clarity approx VS1-VS2) with an estimated total weight of 2.46 carats. The style is utterly beautiful and timeless.