thanks y'all. happy to share the joy at TPF.
butterfly: i bought it from a diamond dealer in hong kong. they don't have a retail shop unit, you have to go into an office building past security. if anyone's in hk, i can add the name of the diamond merchant.
laurineg: i didn't buy the box. it came with my purchase! it's bigger than needed for these rings, but i figure that when i travel, i can put a few other items into the box and then pop the box into my purse.
These rings were not custom made for me, but it's a one-off design. this diamond merchant makes various designs and they were trying this out. i was so happy to snap it up. it's a one-and-only ring! and better yet, it makes me feel like i have 4 new rings and with the different combinations, keep me from getting bored too quickly.