When the Damaged Necklace quest is in your quest log, you're able to loot Scourge Curio from Northrend Scourge and turn it into a Shifting Sun Curio.

After making the shifting curio, you can loot another Scourge Curio, making it possible to make many of the item and save them and not have to do one of the Jewelcrafting dailies for a long time.

You might need to have one of the JC dailies active to be able to loot it, I'm not sure.