Foilbacks, in vintage jewellery, is the practice of inserting metal foil behind gemstones or faux gemstones, to enhance their sparkle and reflective properties. When this foil darkens or peels, these gemstones are often considered dead or lacking in sparkle.
Foilbacks, in vintage jewellery, is the practice of inserting metal foil behind gemstones or faux gemstones, to enhance their sparkle and reflective properties. When this foil darkens or peels, these gemstones are often considered dead or lacking in sparkle.
Source: Wikipedia "Foilbacks" · CC BY-SA 4.0
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