What it's Worth
Simpler 18k gold pieces without diamonds bring modest sums relative to gold weight; pieces with fine pavé diamond work or larger center stones bring considerably more. Complete matched sets and larger statement pieces from recognizable collections like Mauresque command the strongest prices.
18k gold pieces without diamonds $300-$1,500; diamond-set pieces $800-$5,000+.
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Overview & History
Founded in 1996 by Italian designer Roberto Coin, the brand quickly established itself as a leading name in fine Italian-made 18k gold jewelry, known for versatile, wearable designs across collections including Mauresque (arabesque-patterned gold and diamond pieces), Ipanema, and Symphony. The brand's most distinctive signature is not visible from the outside: every genuine Roberto Coin piece contains a small ruby set discreetly inside the setting, a trademark the designer adopted as a mark of authenticity and good fortune. Value depends on the specific collection, the weight of gold, and the quality and carat weight of any diamonds or gemstones used.
Identifying & Marks

