transparent gem, n.
a gemstone having the property of transmitting light without serious diffusion
<noun.substance>
transparent gem
semantic pointers
hyponym
garnet
amethyst
aquamarine
chalcedony, calcedony
chrysolite
chrysoprase
citrine
diamond, adamant
emerald
kunzite
moonstone
morganite
peridot
ruby
water sapphire
sapphire
hiddenite
sunstone, aventurine
topaz
tourmaline
hypernym