Browse the most exclusive diamond jewelry collection in the nation's capital, all handmade in the USA. Select from designs in a multitude of styles, from vintage to modern, or use your imagination and allow Dino Lonzano to create a custom piece that's truly one-of-a-kind.

From our distinctive diamond engagement rings to timeless handcrafted jewelry, we'll show you stunning options that don't just commemorate, but elevate any occasion or emotion. Whether it's an engagement, a wedding, an anniversary or a self-congratulatory whim, Market Street Diamonds can help to make it uniquely unforgettable. Whether you're looking for necklaces, pendants, bracelets, earrings or rings, count on the rarest quality and unparalleled precision. Whether you're interested in diamonds, sapphires, rubies, emeralds, tanzanite, tourmaline or South Sea pearls, we have the finest on the planet. And whether you want 18-karat gold, palladium or platinum, no one delivers like Dino Lonzano.

Visit the Market Street Diamonds showroom and jewelry studio, conveniently located at the gates of Georgetown, and let us introduce you to Dino Lonzano and his designs. Dino and his GIA-trained team of passionate professionals will assist you in locating or creating that intimately personal, breathtakingly beautiful and enduringly memorable treasure you've been dreaming of.