Here's some info, straight from OPI's press release on this recently:
Inspired by Mariah Carey, OPI has bottled luxury for the holidays. Elegant and dazzling, Pure 18K White Gold & Silver Leaf Top Coat adds precious metal texture over any OPI shade or can be worn alone for a subtle but luxurious look. This genuine18 karat white gold & silver leaf top coat comes packaged in a special limited edition collectable box.
“OPI is known for creating unique textured nail finishes and this sophisticated top coat is the ultimate must-have accessory. Whether you prefer gold or silver this combination adds a glamorous touch to fingers and toes,” says Suzi Weiss-Fischmann, OPI Executive VP & Artistic Director. “This luxurious top coat was inspired by Mariah Carey’s extravagant style and allows us to embrace our inner diva without breaking the bank. It takes nails to the next level!”
Here's one layer of Pure over a dark slate gray (Julep Daria):
I love that the white gold and silver pieces have a distinct, almost textured look to them, although they lie flat and smooth on the nail. Very festive and the color is super versatile. Will you be picking this one up? All this holiday stuff is getting me amped up for the holiday season for sure!
I'll leave you with some parting info from OPI:
As with all OPI nail lacquers, Pure 18K White Gold & Silver Top Coat features OPI’s exclusive ProWide™ Brush for the ultimate in application. This limited edition promotion will be available beginning October 2013 at professional salons, including Beauty Brands, Beauty First, Chatters, Dillard’s, JCPenney, Pure Beauty, Regis, Trade Secret, and ULTA and ulta.com, for $30.00 ($37.50 CAN) suggested retail for each Nail Lacquer.