| GEMOLOGY | Study of diamonds, opals, sapphires ... (8) |
| ESPOUSAL | Use opals to enhance marriage (8) |
| ALCOPOPS | Opals cop removed from drinks! (8) |
| GOALPOST | Got opals roundabout the upright on sports field (8) |
| EMERALDS | Green gems set in the Imperial State Crown with diamonds, rubies, sapphires and pearls (8) |
| ASTERIAS | Gems such as star sapphires that exhibit bright star-like effects when cut en cabochon; or, the genus of the common starfish (8) |
| SRILANKA | Noted source of rubies and sapphires |
| GEMSTONE | Jacinth, possibly, of sapphire's shade (8) |
| GIRASOLS | Fire opals |
| LASTHOPE | The only person I can now rely on to recover the opals (4,4) |
| STRAIGHT | _ six, the Armstrong Siddeley Star Sapphire's engine (8) |
| RAIN | Believed to fall in the form of diamonds on Saturn and Jupiter, precipitation involved in the formation of opals and phenomena in the form of spectral arcs (4) |
| PRECIOUSSTONES | Diamonds, sapphires, emeralds etc (8,6) |
| GEMS | Diamonds, rubies, opals, etc. (4) |
| RARER | Like black opals vis-a-vis white opals |
| SALOP | England's source of opals (5) |
| CARAT | 200 milligrams of opals |
| IRIDESCENT | Colorful, said of opals |
| STONES | Precious -; diamonds, sapphires, emeralds, rubies ... general description of minerals studied in gemology, used for jewellery and signifying birth months (6) |
| MONIED | Rich source of opals found in new mine close to Witwatersrand (6) |
