in the patch notes it said this:
Jewelry Crafting Writs will no longer reward Terne, Iridium, or Zircon Grains. They will now only reward Chromium Grains, with the chance to obtain a Grain increasing with the rank of the Jewelry Crafting writ completed, similar to other durable trade skill writ rewards.
I have yet to receive one chromium grain from a writ from multiple crafters, some maxed.
Anyone else getting any of these?