Two-stone engagement rings like this Art Deco diamond ring are known as "toi et moi" rings. The style became popular after Napoleon Bonaparte proposed to his future Empress Josephine with a diamond and sapphire ring representing "you and me" in 1776. This toi et moi ring, which dates to the early 1920s, is fashioned in 18k white gold and platinum. The
two diamonds are different cuts, one is a .07ct transitional cut, the other a .09ct old European cut. This variation between the two stones likley means that one of them is likely a replacement, but it also happens to underscore the sentiment behind the "You and Me" style as each stone has it's own personality.
ART DECO (1915 – 1940)
Art Deco is highly recognizable for its minimalism and futurism. Simultaneous art movements—Cubism, Bauhaus—informed the geometric style, along with “exotic” foreign influences like the Ballet Russe. Motifs like ziggurats and sunbursts, stripped of visual clutter, conveyed the optimism of an increasingly technological world.
In jewelry, the predominant use of white metals let colorful gems take center stage. Stones that were opaque and true in color, like lapis lazuli, onyx, jade, coral, and opal were worked into designs alongside more precious and brilliant gems, like diamonds, sapphires, rubies, and emeralds. Extra-long beaded necklaces and tasseled “sautoirs” followed the narrow flapper silhouette.
The baguette cut was an Art Deco innovation, and the decade saw increased use of other angular diamond cuts, like the precise caliber cut and the emerald cut. Synthetic gems, like sapphires, were celebrated as a scientific marvel. Marcel Tolkowsky, 21 years old at the time, published the design for the round brilliant cut in 1919.