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White and Colourless Gemstones: Moti, Moonstone, Opal سفید
In short: Our natural white and colourless stones are moti (pearl), moonstone, opal, white topaz, white agate, Dur-e-Najaf and Moh-e-Najaf. White topaz and Dur-e-Najaf are clear and sparkly, moonstone and opal are milky with a glow, and pearl is organic with a soft lustre. Hardness runs from 2.5 for pearl up to 8 for white topaz.
Among our natural white and colourless stones are moti (pearl), moonstone, opal, white topaz, white agate, Dur-e-Najaf and Moh-e-Najaf. Some, like white topaz and Dur-e-Najaf, are clear and sparkling. Others, like moonstone and opal, are milky and glow. Pearl stands apart as an organic gem with a soft lustre.
- Hardest
- White topaz, 8 Mohs
- Organic
- Moti (pearl)
- Glow
- Moonstone, opal
On the tray today
Shop all white and colourless gemstones
PearlMoonstoneOpalWhite TopazWhite AgateDur-e-NajafMoh-e-Najaf
Written by Sameer
Reviewed on
Our white stones side by side
| Stone | Hardness (Mohs) | What it looks like | Usual treatment |
|---|---|---|---|
| Moti | 2.5–4.5 | Organic, with a gentle lustre | Sometimes bleached |
| Moonstone | 6–6.5 | Milky, with a blue-white glow that floats | Normally untreated |
| Opal | 5.5–6.5 | White body flashing with colour | Normally untreated |
| White topaz | 8 | Clear with a bright sparkle | Normally untreated |
| White agate | 6.5–7 | Milky, translucent and waxy | Sometimes bleached |
| Dur-e-Najaf and Moh-e-Najaf | 7 | Clear quartz; Moh-e-Najaf holds fine needles | Untreated |
Things to check
- Pearl: look for a deep, even lustre. Rub it lightly on a tooth: a natural pearl feels a little gritty, an imitation feels smooth.
- Opal: protect it from sudden heat and from long soaking; some opals take up water and go clear for a while.
- Dur-e-Najaf: glass copies often show round bubbles; read rock crystal or glass.
- White topaz: it is hard but has cleavage, so keep it away from sharp knocks.
On Cash on Delivery you can open the parcel and look the stone over before you pay the rider, and we can give you a certificate if you ask for one.
What makes a white stone worth more
A pearl's value comes from lustre, a round shape and a clean skin. Moonstone is prized for a strong blue-white glow sitting in the centre of a clear body. Opal is judged on how bright and varied its flashes of colour are. White topaz and Dur-e-Najaf are valued for clarity and a well-cut sparkle, and Moh-e-Najaf for the quality of its needles.
References
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