Guardian sword

This is a legendary sword that has been forged in the flames of eternal light. The guardian Angel blessed the blade with his powers and gave it the shape of his wings.

This is my first original design that I have been able to make on my own in blender, I understand it may not be the best of quality and I couldn't color it for you guys to see the beauty of it. I will give a description of the colors. the whole blade including the wings are silver the rings and raised parts around the gems are gold, and the handle is leather colored. the three gems are sapphire being the bottom gem, ruby for the second, and emerald for the top one. the pommel has three colors the round part under "the crown" is red the nub and "the crown" is gold, the ring is silver. it kind of resembles a king's crown.

If anyone knows how I could get this colored with the proper material look without crashing my computer because of the mesh I would gladly appreciate it. Thank you for supporting this design becaus