- Forge together three +400 fire attack gems.
- Forge together three +400 ice attack gems.
- Forge together three +400 water attack gems.
- This should produce three rare elemental attack gems. Forge them together in this order: Fire - Ice - Water
When used in a solar transport energy blade, the beam keeps on changing color.
If it is put in a normal weapon, the hit effect is similar to that of the Lady Finger. When it stabs, it has the Infinity Blade's stab animation.
It will not work if the fire, ice and water gems are not rare +500 gems or they were put in the wrong order. If so, the resulting gem will not be a Spectrum.
If 3 Rare Spectrum Gems are forged, the result is a Rare Spectrum Gem with +1000 damage, or 10000 damage on a solar-trans blade (right). The forging of the resulting plus +1000 gem with two subsequent +500 gems results in another +250 per forge (eg. 1000+500+500 >> 1250)(bottom-right).
Both the Rare Spectrum Gem and the Rare Darkfire Gem have a 10% successful effectiveness against bosses with Spectrum defense. The Solar Transport Energy blades provide damage amplification that helps counteract this, rendering them very effective against the Deathless for +1000 Spectrum or Darkfire gem.