Art Deco GIA 3.38 carat diamond sapphire platinum engagement ring

This exceptional Art Deco engagement ring is a powerful and sophisticated jewel from the 1930s, defined by bold geometry, dramatic contrast, and refined craftsmanship. At its center is a commanding GIA-certified old mine cut diamond weighing an impressive 3.38 carats. With its softly squared outline, open culet, and broad antique facets, the diamond radiates a warm, romantic glow that is unmistakably antique, offering depth and character that modern cuts cannot replicate.

Framing the center stone is a meticulously balanced composition of accent diamonds and sapphires. Fourteen single cut and Old European cut diamonds add subtle brilliance and texture, their soft sparkle enhancing the center diamond without competing for attention. Interspersed among them are fourteen precisely cut French cut blue sapphires, introducing vivid flashes of color and crisp geometry. This interplay of white and blue stones is a hallmark of Art Deco design, creating striking contrast and architectural symmetry.

Crafted entirely in platinum, the setting provides a cool, luminous foundation that emphasizes the gemstones’ brilliance and sharp lines. The platinum’s durability allows for fine, intricate detailing while maintaining a strong, elegant structure. The ring’s proportions are confident yet refined, making it both a statement piece and a timeless engagement ring.

Bold, graphic, and richly detailed, this ring is a true Art Deco treasure—perfect for collectors and connoisseurs who appreciate antique diamonds, calibrated sapphires, and iconic early 20th-century design.