Dating back to the 1880s, this “tiara russe” diamond tiara, with a design based on the head ornaments worn by the Russian kokoshniks, will be auctioned at Sotheby’s Geneva this May (estimate: $150-295,000).

Dating back to the 1880s, this “tiara russe” diamond tiara, with a design based on the head ornaments worn by the Russian kokoshniks, will be auctioned at Sotheby’s Geneva this May (estimate: $150-295,000).