Illuminant Armor is a craftable Hardmode armor set made from Illuminated Crystals. It takes a total of 43 Illuminated Crystals to craft a full set.
It consists of a Illuminant Cowl, Illuminant Platemail and Illuminant Greaves.
The Illuminant Cowl provides 14 defense, 6% increased damage, and 5% reduced damage taken; the Illuminant Platemail provides 20 defense, 10% increased damage, and 30 increased maximum life; and the Illuminant Greaves gives 17 defense, 20 increased maximum life, and increased life regen.
A full set gives a total of 51 defense, 16% increased damage, 5% reduced damage taken, 50 increased maximum life, and increased life regen.