Rocks Couture Ruby Collection 18ct White Gold Ring with an Oval Cut Centre Gemstone Surrounded by 10 Round Brilliant Cut Diamonds. The white gold meatl gives the diamonds an added level of brilliance to catch you eye and enhance the Ruby A gorgeous everyday ring that would be perfect to mark a special birthday or milestone. Rubies are the birthstone of July and are growning popularity as an alternative to diamond engagement rings. Ruby Carat Weight: 1.12ct Diamond Carat Weight: 0.75ct This ring is available to view in our Grafton Street store. Make an applointment or just call in.