Blue Nile is taking $50 off orders of $100 or more via code SUMMER11. Better yet, they are currently offering the pictured Everlasting Hearts Necklace in Sterling Silver, regularly $75, for $35 with any purchase (the option to buy it will appear in-cart). To top it all off, FedEx Priority overnight shipping is free. This is the best coupon and offer we've ever seen from them. Check out the Graduated Bead Necklace, which drops from $100 to $50, and the Freshwater Cultured Pearl Solitaire Necklace, which lowers from $155 to $105. Note that this is not valid on loose diamonds and "build your own" engagement rings.