where can I find the small one?

i received the one on the right as a gift, and now am looking to buy the one on the left, rose gold specifically. sadly, i can't seem to find it anywhere. i only found something this small in gold and silver. am i looking for the needle in the haystack?

i received the one on the right as a gift, and now am looking to buy the one on the left, rose gold specifically. sadly, i can't seem to find it anywhere. i only found something this small in gold and silver. am i looking for the needle in the haystack?