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Some antique pieces, constructed from yellow gold, have silver work added, often in areas where stones are set.Because yellow gold imparts a yellowish tint to colorless stones when used for setting, adding silver minimizes the effect.Various sources date this alloy to 1911, 1915, and 1917.Earlier attempts to produce a white gold alloy were unsuccessful.Many credit the Belaise Brothers with the invention of white gold, or at least the first successful marketing of white gold.The terms Belaise metal and white gold were synonymous in the 1920’s.Iridium is usually the other material used in the alloy.

Pieces, such as these, are also made in low karat gold alloys and with quality karat gold settings, so all merit a careful examination.The rhodium plating which is used to improve the appearance of white gold can also be used to deceive.Some manufacturers will make a piece in all yellow gold, and then rhodium plate some areas to give it a two-tone look, giving the piece the appearance of being made from yellow and white gold.The majority of pieces made before the mid-19th century will be European, which includes Great Britain and Russia.The practice of hallmarking jewelry and objects made of precious metal started in the 1400’s and continues to the present. Not everyone hallmarked their work, and the passage of time and repair work has marred or eliminated many marks.

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