Stone whose color ranges from pale mauve to deepest purple.
lapis lazuli
Opaque, dark blue stone that is usually speckled; the glittering flecks are proof of its authenticity.
turquoise
Opaque, light blue stone with tinges of green; it often contains brown, gray or black veins.
opal
Soft opaque stone that is milky-white or quite dark and gives off rainbowlike reflections.
tourmaline
Usually multicolored stone with a rich array of colors from red to pink and green and on to blue.
aquamarine
Stone whose color ranges from whitish-pale blue to a deep blue-aqua color.
topaz
Stone with a wide range of colors, including yellowish-orange (the most common), green (the rarest), pink (the most sought-after), blue, brown and colorless.
garnet
Stone whose color ranges from green to yellow to dark red.