The Two Agnus Die projects for the Easter Set, the gold thread used for couching the blue silk sky is a Gilt Smooth Passing Thread size 4 with a silk core. The thread is imported from Access Commodities here in the States and is available from Hedgehog Handworks.  The Gilt threads have 1/2% gold and are very nice to work with. The silk core makes the thread very pliable and so nice to plunge thread tails – an excellent goldwork thread.