What is smoky topaz?
By Jared James · Last updated 21 May 2026
Definition
Smoky topaz is a trade name for smoky quartz, a brown to grey variety of quartz, and it is not a type of topaz at all. The name became popular in the jewellery trade because smoky topaz sounds more appealing than smoky quartz, but gemmologically the two minerals are entirely different. Topaz is a harder, denser silicate mineral, while quartz is silicon dioxide. If you see smoky topaz listed in a jewellery description, you are most likely looking at smoky quartz.
Frequently asked questions
- Is smoky topaz a real gemstone?
- It is a real gemstone in the sense that the stone itself, smoky quartz, is genuine. The name smoky topaz is simply a trade misnomer; reputable gemmologists and jewellers prefer to call it smoky quartz to avoid confusion.
- Is smoky topaz the same as smoky quartz?
- Yes, in common jewellery trade usage smoky topaz and smoky quartz refer to the same stone. The name topaz was applied informally because it sounded more prestigious, but the stone is actually a variety of quartz.
- What colour is smoky topaz?
- It ranges from a light, warm brown to a deeper grey-brown and can be almost black at the darker end. The colour comes from natural irradiation within the quartz crystal as it formed underground.
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