LingMei Emerald Cut Simulated Black Onyx with Silver Plated Fashion Ring for Her This ring contains a 6*8mm created black onyx crystal set with zircon. Black onyx is a stone for banishing grief, enhancing self-control and wise decision making. It's quite comfortable for wearing and suitable for all occasions (wedding, anniversary, Christmas) styles and ages. All jewelry items will come to you nicely packaged which make it be a good choice for gift. We have a no questions asked return policy which makes your purchase risk free.