1. Designers Could Scott Kay become the next David Yurman? The bridal designer certainly raised eyebrows Aug. 15 when he announced that former ­Yurman chief operating officer David Minster had joined his company as CEO. “I was at Yurman in a very similar situation, in terms of size, scope, and infrastructure challenges,” Minster tells JCK. As for Kay himself, he will become the company chairman and focus on branding and designing. “He needs to be able to concentrate on product ­development,” says Minster. “He has a tremendous amount of work that he has not brought to market.” 2. Diamonds Sotheby’s Oct. 7 Magnificent Jewels sale in Hong Kong will feature not one but two spectacular diamonds: the “greatest white diamond ever sold at auction” (a 118.28 ct. oval D-flawless); and the Premier Blue, a 7.59 ct. internally flawless fancy vivid blue