| TOPAZ | Mineral ussed as a gem |
| AMBER | With hundreds of shades ranging from honey, butterscotch and citrine to cherry and cognac, a form of fossilised pine-tree resin prized as a gem (5) |
| EMERALD | Hard translucent variety of the mineral beryl coloured green by chromium, valued as a gem (7) |
| JET | Black lignite used as a gem; or, a type of spray-emitting nozzle (3) |
| ZIRCON | Which common mineral is used as a gem when transparent (6) |
| RUBY | Name a red variety of corundum, highly prized as a gem (4) |
| PEARL | Lustrous globule prized as a gem (5) |
| UNCUT | Raw, as a gem |
| TIGERSEYE | Golden-brown quartz used as a gem (6-3) |
| ORIENTALTOPAZ | Yellow corundum used as a gem (8,5) |
| AMETHYST | Kind of quartz used as a gem (8) |
| SARD | An orange, red or brown variety of chalcedony valued as a gem |
| OPAL | Form of silica, opaque or transparent with an iridescent play of colours valued as a gem |
| CORNELIAN | Sentimental stuff by Lamb that could be seen as a gem? |
| DIAMOND | Form of pure carbon esteemed as a gem that is the hardest naturally occurring substance (7) |
| MOUNT | A microscope slide; a postage-stamp hinge; a backing for a gem/photograph; or, a horse suitable for riding (5) |
| MARQUESS | Marchioness; a rich chocolate mousse; a style of parasol; or, a gem cut in the shape of a pointed oval (8) |
| SETTING | Surroundings; the scenery etc used to create the location in a play or film; or, a mounting for a gem in a piece of jewellery (7) |
| MOONSTONE | Name of the Indian diamond in a novel by Wilkie Collins; or, a gem with a pearly iridescence, similar to opalite (9) |
| SCARAB | A dung-beetle, or a gem cast in the form of a beetle (6) |
