“We wanted to keep it a secret,” whispers Gaia Repossi of the nascent neo-baroque jewelry line that she codesigned with her childhood friend, the stylish Greek heiress Eugenie Niarchos. But once they began wearing the prototypes on the Young Monaco social scene, word was bound to get out. “Fortunately our friends liked it, and I’m happy [about that], as they’re the right generation for the stuff,” says Repossi. Dubbed Czarina, the line marks the first endeavor for Repossi’s brand, Ere by Repossi. Cuffs, rings, pendants and earrings come in four different shades of gold, with prices running from $500 for gold lace studs to $50,000 for a gold and rose-cut diamond bracelet. Along with Russian iconography, Niarchos’s love of vintage jewelry also flavored the creative process.