Roberto Coin
Roberto Coin is an Italian luxury jewelry house known for fine 18k gold work, diamond-set designs, and the signature hidden ruby set inside every piece — the designer's discreet trademark. Austin Auction Gallery sells and appraises Roberto Coin jewelry.
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.
Our sold results
Auction results for Roberto Coin
Showing 3 results
Auction Results
| Lot | Sold | Price realized |
|---|---|---|
| ESTATE ROBERTO COIN 18KT ROSE GOLD 2.50CTTW PAVE DIAMOND PENDANT BROOCH | Sep 2025 | $2,000 |
| (PR) ESTATE ROBERTO COIN 18KT YG 'CENTO' 1.50CTTW DIAMOND HOOP EARRINGS | Sep 2024 | $2,750 |
| (2) ROBERTO COIN 18KT YELLOW GOLD HOLLOW TEXTURED LINK JEWELRY SET | Sep 2024 | $2,000 |
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
Look for the 'Roberto Coin' signature along with '750' or '18K' gold content marks. The definitive authentication check is the hidden ruby: examine the underside or interior of the setting for a small red ruby, which is present on every genuine piece regardless of the rest of the design.
Frequently asked
What could my Roberto Coin bring at auction?
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.
How do I identify Roberto Coin?
Look for the 'Roberto Coin' signature along with '750' or '18K' gold content marks. The definitive authentication check is the hidden ruby: examine the underside or interior of the setting for a small red ruby, which is present on every genuine piece regardless of the rest of the design.
How do I sell my Roberto Coin?
Austin Auction Gallery offers free, no-obligation appraisals. Send a few photos and our specialists will tell you what it could bring at auction, then handle every step from cataloging through the sale.
What could your Roberto Coin bring at auction?
Our specialists provide free, no-obligation auction estimates. Send a few photos and we'll tell you what it could bring.