siena

The SIENA MEDIUM DIAMOND CIRCLE NECKLACE by Roberto Coin is an 18K gold pendant with a double halo of small diamonds in concentric circles, elegantly suspended from a fine gold chain.
2 Sizes

Siena

Circle Necklace

Diamond

From $6,120
Yellow Gold
The SIENA DIAMOND HUGGY HOOP EARRINGS by Roberto Coin are small 18K gold hoops adorned with rows of white diamonds. Shown front and side view against a white background.

Siena

Classic Huggy Hoop Earrings

Diamond

$6,120
Yellow Gold
The SIENA DIAMOND 1 ROW RING by Roberto Coin is an 18K gold stacking ring with a central row of round white diamonds and intricate top and bottom edge detailing, shown against a plain white background.

Siena

Classic Ring

Diamond

$8,160
Yellow Gold
The SIENA DIAMOND THREE ROW BANGLE by Roberto Coin is a luxurious 18K gold piece featuring three rows of sparkling white diamonds and intricate side detailing.

Siena

Bangle

Pavé Diamond

$27,230
Yellow Gold
The SIENA DIAMOND TABLET NECKLACE by Roberto Coin is an elegant 18K gold piece, featuring a slender rectangular diamond-encrusted pendant on a delicate gold beaded chain, shown against a white background.

Siena

Tablet Necklace

Diamond

$8,080
Yellow Gold
The SIENA DIAMOND 1 ROW BANGLE by Roberto Coin features a slim gold design with a row of sparkling white diamonds and elegant beaded edges—an ideal choice for lovers of refined, sophisticated jewelry.

Siena

Classic Bangle

Diamond

$20,610
Yellow Gold
Gold hoop earrings with three rows of round diamonds set along the curved surface.

Siena

Open Back Hoop Earrings

Pavé Diamond

$12,300
Yellow Gold
The SIENA LUCCA DIAMOND ROW HOOP EARRINGS by Roberto Coin are 18K white gold hoops featuring a twisted design and a row of sparkling diamonds, elegantly displayed from various angles against a white background.

Siena

Lucca Hoop Earrings

Diamond

$7,040

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Siena

Inspired by the historic charm and artistic soul of Siena, one of Tuscany’s most treasured cities, the Siena Collection by Roberto Coin captures the essence of Italian heritage with modern sophistication. Each piece reflects the city's architectural grace and medieval romance—crafted in radiant 18K gold and adorned with delicate diamond accents.