To make a Jeweled Deldrimor Steel Plated Dowel, you need to sacrifice 105k karma for shards, 50x airship oil, 50x Auric Dust, 50x Ley line spark.
Alternatively, you can just make a usual Deldrimor Steel Plated Dowel into a Grizzlemouth’s ascended weapon then transmute it with Anthology of Heroes in the mystic forge.