14K White Gold Necklace with Natural Heart Ruby. Delicate and feminine, this necklace features an enchanting 7x7mm heart-shaped natural ruby pendant hanging from an 18 inch 14k white gold rope chain. Impress the July celebrant with a birthstone necklace she will want to wear everyday! Month Zodiac Sign Birthstone July Cancer Ruby. So buy this and you can Get Free Shipping on a 14K White Gold Necklace w/ Natural Heart Ruby for $106.97 at Rakuten.com, a $427.63 Savings!