{"product_id":"a-gift-of-colour-vintage-gold-plate-over-sterling-silver-black-opal-simulated-bow-brooch-vbr384","title":"A Gift Of Colour - Vintage Retro Gold Plate Over Sterling Silver Black Opal (Simulated) Floral Brooch (VBR384)","description":"\u003cp\u003eA Gift Of Colour - Vintage Retro Gold Plate Over Sterling Silver Black Opal (Simulated) Floral Brooch. This gorgeous brooch is crafted from gold plate over sterling silver, hallmarked SILVER. The brooch features 5 oval black opal (simulated) cabochon gemstones, vintage retro era styling, and quality craftsmanship. This brooch is high quality, and made in the form of a flower with texturized, and polished flowing stems. The top of the flower is expertly hand-set with black opals (simulated), displaying an array of colours in different light intensities. The brooch features a high polished finished back, and its original pin and locking mechanism, which is in perfect working order. This vintage brooch looks stunning when worn, truly a perfect gift or addition to any jewelry collection. \u003c\/p\u003e\n\u003cp\u003eHistory: \u003cmeta charset=\"UTF-8\"\u003e\u003cspan data-subtree=\"aimfl,mfl\"\u003eSimulated and synthetic opals were first developed in the 1960s - 1970s \u003c\/span\u003e\u003cspan\u003e with early scientific research and commercial milestones spanning several key dates. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan lang=\"en\" class=\"ILfuVd NA6bn\"\u003e\u003cspan class=\"hgKElc\"\u003eWhat Is Gold-plated Jewelry? Gold-plated jewelry is a type of metal jewelry covered with a very thin layer of real gold. The process was invented in \u003cb\u003e1805\u003c\/b\u003e by Italian chemist Luigi Brugnatelli who plated a very thin gold layer on top of silver. \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSilver was\u003cspan\u003e \u003c\/span\u003e\u003cb\u003efirst found in large amounts around 5000 BC\u003c\/b\u003e, when prehistoric people dug the first copper mines. ... Large-scale silver mining had developed in Anatolia by 3000 BC. This was to meet the demand from the first ancient city states, which used the metal as a common medium of exchange.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe term sterling silver denotes any silver alloy in which pure silver makes up at least 92.5 percent of the content. One theory is that the word sterling comes from the name Easterlings—coiners from east German states brought to England during the reign of Henry II (1154–89) to improve the quality of the coinage.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMeasurements: Brooch 52.00 mm x 29.00 mm \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Size: Opal 2.50 carats \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeight: 6.80 grams \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCondition: Excellent \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOrigin: Canada \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDate: Circa 1960 \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Rarities Antique Jewelry","offers":[{"title":"Default Title","offer_id":41924011753530,"sku":null,"price":295.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0811\/5305\/files\/DSC_8238_d190155b-cc27-41d6-a11d-b53b91a51ef4.jpg?v=1794529516","url":"https:\/\/raritiesantiquejewelry.com\/products\/a-gift-of-colour-vintage-gold-plate-over-sterling-silver-black-opal-simulated-bow-brooch-vbr384","provider":"Rarities Antique Jewelry","version":"1.0","type":"link"}