NEW YORK – An Art Deco-style platinum brooch sporting eight carats of diamonds, an 18K white gold and diamond cocktail ring, and a 14K gold and diamond ring set with a GIA-certified 5.12-carat emerald will compete for top lot status at Jasper52’s Classic to Modern Gold and Diamond Jewelry Auction, which will be conducted on Wednesday, February 1 at 8 pm Eastern time. Absentee and Internet live bidding will be available through LiveAuctioneers.