Primal Gladiator's Satin Cord is part of the transmog set Primal Gladiator's Satin Armor (Priest only), which the Appearances collection lists in 2 versions. The other 13 pieces:
Items Numbered Next to Primal Gladiator's Satin Cord
Blizzard numbers items as they are created, so the named items next to ID 115969 (115964 to 115974) were usually added in the same batch as Primal Gladiator's Satin Cord: the same quest line, zone, vendor or reward set.