Over 180 years, the house of Sillam evolved from making swords to crafting fine jewelry. To this proud tradition, fifth-generation family member Henri brings his own, more contemporary vernacular for the brand—one that favors large, brightly hued gemstones and a playful spirit. These capricious pieces marry a sense of fun with exquisite detail and workmanship. His Champagne-cork-shaped gold-and-pavé-diamond ring, for instance, features bubbles composed of tiny diamonds trickling down its sides. More recently, he collaborated with florist Jeff Leatham of the Four Seasons Hotel George V in Paris, where Sillam has a boutique, to fashion a series of one-of-a-kind floral brooches featuring life-size blooms, made of different combinations of diamonds, sapphires, tsavorites, and amethysts. Most of Sillam’s pieces are one-offs because of the rarity of the gemstones involved, like the bright green turquoise uncovered from the mountainous terrain on the border between Iran and Turkmenistan. These unusual stones inspired a group of layered bead chokers.