Regency 18ct Gold, Coral & Turquoise Cluster Ring Georgian 23 Strand Coral Necklace with 18ct Gold Clasp Victorian 9ct Gold Coral & Natural Split Pearl Marquise Ring DiamondĪ precious, lustrous gemstone made of highly compressed carbon. Coral is believed to be one of the oldest forms of gemstone jewellery, with some pieces dating back as far as 23,000 BC. It grows in branches that look like underwater trees. Victorian Gold & Citrine Drop Earrings Art Deco 18ct Gold & Platinum, Citrine & Diamond Ring Edwardian 15ct Gold Fringe Necklace set with Citrines & Rock Crystal CoralĪn organic gem, consisting mostly of calcium carbonate, deposited by tiny sea creatures called polyps living in the depths of warm seas in huge colonies. The best quality citrine is found in Brazil. Edwardian Alexandrite Tie Pin Edwardian 18ct Gold & Platinum, Natural Colour Change Alexandrite & Diamond Cluster Ring Edwardian 15ct Gold, Cats Eye Chrysoberyl & Diamond Tie Pin CitrineĬitrine (from the French for ‘lemon’) is a rare, yellow type of quartz, a semi-precious stone that ranges in colour from pale yellow to orange to golden brown. Alexandrite and cat’s eye are both notable types of chrysoberyl. Regency 18ct Gold Diamond & Chrysoprase Drop Earrings Green Crysoprase 14ct Gold Art Deco Bracelet Art Deco Chrysoprase & Rock Crystal 9ct Necklace ChrysoberylĪ hard stone that ranges in colour from yellow to brown to green. The unique, rich colour of chrysoprase derives from its origins, in nickel-rich areas. Ranges from a light, minty-green to a deep apple-green and is a green version of chalcedony. 9ct Gold & Blue Chalcedony Round Earrings Art Deco Silver & Blue & Green Chalcedony Necklace Art Deco Chalcedony & Rock Crystal Sûreté Pin Chrysoprase Victorian 18ct Gold Signet Ring set with a Carnelian Art Deco Silver, Carnelian & Marcasite Necklace Early 20th Century Gold & Carnelian Signet Ring ChalcedonyĪ family of minerals that is often milky to grey to bluish in colour. Carnelian once held greater value than it does today. It is often a solid colour, but banded examples also occur, in which case it is jointly classified as both agate and carnelian. The red, orange, or amber variety of Chalcedony. 9ct Gold & Oval Bloodstone Signet Ring 19th Century Signet Ring set with a Bloodstone Intaglio with Grapes Carnelian Spots are favoured over larger stripes and markings. The extent of the marking varies depending on the stone. A dark green variety of chalcedony that is splattered with reddish-brown spots that resemble blood.
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