Whether you’re playing poker on the Vegas Strip or pinochle in your living room, these diamonds are a sure bet JEWELS TO DAZZLE (AND PERHAPS DISTRACT!) YOUR OPPONENTS (Top) Earrings in platinum with diamonds, $16,800, Nina Runsdorf, NYC, 212-382-1243, nsrjewelry.com; eternity band and bracelet in platinum with diamonds, prices on request, Norman Silverman Diamonds, Los Angeles, 877-687-3985, normansilverman.com; ring in platinum and 18k gold with a fancy light pink-brown oval-shape diamond, round fancy pink diamonds, and colorless diamonds, price on request, Setaré/David Mor, Great Neck, N.Y., 516-498-3833       TAKE ME DOWN LIKE I'M A RUBY- AND DIAMOND-DRAPED DOMINO. Earrings in platinum with rubies and diamonds, $13,100, Goldstein Diamonds, Scottsdale, Ariz., 800-237-0364, goldsteindiamonds.com; bracelet in 18k gold with diamonds and rubies, $45,2