I had a choice between the Pietersite and obsidian 20 motif necklace and 5 motif bracelet set. I was fortunate to be able to try both sets today. I loved the pietersite as soon as I saw it. The blue with white gold is just stunning. It is such a versatile stone..I can wear with a plain tshirt and jeans for casual look or dress it up. The obsedian is pretty too but it looks too similar to the gray mop so it didn’t really stand out for me. I ended up putting a deposit down for the pietersite. I was also fortunate that my SA was able to request the rock crystal bracelet for me to complete my set. I really regretted only buying the 20 motif rock crystal previously and so I’m really happy to finally complete the set. I was offered the obsidian holiday pendant too but I passed on it. I thought the other pieces were a better buy if you break down the cost per motif …