Model #OPT-6487 is the diamond shape. The colors are pretty close to the picture and they are closely matched. I have lots of abalone necklaces and pendants I can wear these with. I bought other styles so my reviews will be similar.
I have somewhat sensitive skin and an allergy to nickel and these have not yet been a problem. I wear these about once a week and they've attracted a lot of compliments! Interesting design too. I bought the matching necklace and the set is very lovely. Also pleased to see this purchase helps local artisans in Africa.
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