The pictures here are a new custom design I just finished for a customer. She had two green synthetic diamonds made from her most treasured cat's remains. For awhile there have been a couple of companies offering to make either human or pet remains into synthetic diamonds. I'm not sure how much of the ashes would actually really be in the diamonds when they are finished but I believe that the companies are using them in the stones produced. Personally I would rather have my ashes sent into space in the next available rocket but if my wife decided she wanted to carry some of me around with her and I left her enough money to do it she should feel free to have me made into a diamond or two (or if they've figuered it out by then I'd really prefer a purple sapphire).
I know it sounds a little funny but as I've said before what I really do is not make jewelry but memories. And for those of us who have significant others, or as I do, favorite pets, the memories are what is truly important. If you want to honor that memory by making their ashes into something you can wear I think that's just great. And I'm happy to make up those stones into something beautiful you can wear, and enjoy, every day that will keep those memories close.