Kat Florence’s matched Paraiba Tourmaline gemstones, known as the Kat Florence Luminas, are scheduled for live auction through Sotheby’s Hong Kong on September 17, 2026, at 2:00 a.m. Eastern time. Weighing 71.239 and 72.844 carats, the oval stones were cut by Kat Florence and are described as the largest flawless Paraiba Tourmalines of their kind ever offered at auction. They originated from an 830-carat crystal discovered in 2003 by Don Kogen in Mozambique’s Mavuco district. Gübelin awarded the pair an Outstanding designation and a 92.1-point rating on July 21, 2026, while Bellerophon Gemlab gave them its extremely rare Bellerophon Privilege Award on June 19. The same Sotheby’s event will also offer Kat Florence’s 424.80-carat flawless Tanzanite necklace, her eighth record-setting piece and the successor to her 423.56-carat Namunyak necklace record. The works are completing exhibitions across Asia before the Hong Kong sale. Kat Florence also presents rare gemstones in a rotating collection at The Kat Florence Hotel in Canada, including a 52.48-carat flawless Jeremejevite.