Amethyst  From light to dark purple
Aquamarine  Pale blue or aqua blue
Agate  Various
Alexandrite  Changes color from green to red
Amber  Golden yellow, sometimes with inclusions
Aventurine  Various
Bloodstone  Green with bright red spots
Beryl  Various
Carnelian  Reddish brown
Chrysoprase  Changes color from honey-brown to an apple green
Chalcedony  Various
Citrine  Yellow-gold to orange brown
Coral  From white to red
Diamond  Clear, pale: pink, blue, yellow, orange, green, brown
Emerald  Deep Green
Garnet  Dark red, green, brown
Iolite  Purplish blue
Jade  Green, pink, lavender, yellow and white.
Jasper  Red, yellow, green, and grayish blue, often with bands and patterns.
Kunzite  Lilac-pink to clear depending on angle of viewing
Lapis Lazuli  Dark blue, often with golden pyrite inclusions.
Malachite  Green
Moonstone  From colorless to gray, pink, brown, green or yellow
Obsidian  Black, other colors include: brown, gray, red, blue and green.
Onyx  Black
Opal  Light Blue, Multicolor
Peridot  Bright yellow-green to green
Pearl  Pearl
Quartz  Clear
Rose Quartz  Pink or peach
Ruby  Dark red or ruby red
Sapphire  From sky blue to dark blue.
Spinel  Pastel pink and purple, cobalt.
Tanzanite  Velvety blue
Tiger Eye  Black with yellow stripes
Topaz  Yellow
Tourmaline  Various
Turquoise  Turquoise Blue
Zircon  Clear