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Signed OHB for Oscar Heyman Brothers and numbered
bridging the evolution from old European to modern brilliant cutting
Mikimoto has been around for over a hundred years and this combination of elements makes it very special
old mine rose-cuts and accented with millegrain
19th Century Victorian Sapphire & Old Mine Cut Diamond Navette Antique Ring onyx Signed OHB for Oscar HeymanLate Victorian antique navette ring centered with a certified natural cushion cut Cambodian sapphire weighing approximately 0. 75 carats, accompanied by an AGL certificate confirming no evidence of heat or clarity enhancement. The vivid, saturated blue sapphire is surrounded by approximately 0. 95 carats of old mine cut diamonds arranged in a graduated navette cluster, a silhouette that defined the aesthetic of 1880s and 1890s fine jewelry. Crafted in