Tier: Tier 2
Color: Must be commonly known gem or metal colored (Red for Ruby, Orange for Amber, Green for Emerald, Turquoise for Turquoise, Blue for Sapphire, Purple for Amethyst, Pink for Rose Quartz, White for Diamond, Black for Onyx, Grey for Iron, Gold for Gold, Brown for Copper)
Tones: Up to 4 tones of a single color
Shape: Can be unnatural
Holes: Tapering: Breaks:
Symmetry: Nuances:
Edges: