Thats pretty lucky getting a special necklace as your first make! I've only ever made 1 special, it was a level 10 increase growth ring. Which my Feli is wearing.
I usually have them match, but with different colours. I dont mind the rings as you can have 2 of them. Like my gold western has blue jewelry, expect for 2 gold ones. As the blue ones were a little over priced. XD