- Stone type
- Natural Topaz
- Weight
- 1.43ct
- Size
- 8x6mm
- Color
- Grey-blue
- Cut
- Oval faceted
- Clarity
- VS
- Treatment
- Irradiated
- Origin
- Brazil
- Hardness
- 8
- Zodiac
- Scorpio, Sagittarius
Natural Blue Topaz 1.43ct 8x6mm Oval Cut
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Distinctly greyer than the other blue ovals here, this 1.43ct stone at 8x6mm reads as a cool steel blue with a hazy band through the middle where the light softens. Contrast is low and the flashes are muted, so the overall effect is calm and slightly veiled rather than sparkling. Clarity is VS, with the haze coming from diffused light rather than from anything discrete inside. The oval is accurately cut with a level girdle.
Grey-leaning blue is a legitimate color in its own right rather than a failed sky blue, and it suits oxidized silver or blackened settings where a bright stone would look out of place. This is Brazilian topaz colored by irradiation and heating. At 8x6mm it is a practical everyday ring size. December counts blue topaz among its stones.
Natural blue topaz, 8x6mm oval, sold loose.
We ship worldwide from Sofia, Bulgaria. Every order is packed in a protective box with bubble wrap. Orders within Bulgaria are dispatched within 1-2 business days and international orders within 2-3 business days. Free shipping is applied automatically at checkout, and the threshold applies to the order value after any discounts.
Delivery within Bulgaria
- Delivered by Speedy, Econt or Box Now, to a courier office, a locker or your address.
- Fixed prices: Box Now locker €1.60 (free on orders from €25), Speedy office €3.20, Econt office or locker €4.00, Speedy to your address €4.50.
- Free shipping on orders over €50, with any courier and at any weight.
- Cash on delivery is available.
- Delivery normally takes 1-2 business days after dispatch.
- Hardness
- 8
- Cleavage
- Perfect
- Durability
- Fair
- Soapy water
- Safe
- Ultrasonic
- Avoid
- Steam
- Avoid
About topaz
Topaz is 8 on the Mohs scale, so it resists scratches well, but it has perfect cleavage along one plane, and a sharp knock can split it even when the surface shows no scratches. It suits pendants and earrings, and rings too if worn with care.
Cleaning
Warm water, a drop of mild dish soap and a soft toothbrush are all you need. Brush behind the stone too, where dust and skin oils collect, then rinse and dry with a soft cloth. Skip ultrasonic and steam cleaners: vibration and sudden temperature changes can start a crack along its cleavage.
Wear and storage
Take it off for sport, gardening or heavy work: a sharp knock can split it. Harder stones such as sapphire, ruby and diamond can scratch it, so store it on its own in a gem jar or a soft pouch.
For your jeweler
This topaz is irradiated, the usual treatment for this color. Topaz should be kept away from the torch flame, acid pickle and the ultrasonic bath. Ask for gentle pressure when setting, since a hard push can split it.
Scale
True to scale: 8 × 6 mm
Shown next to a €1 coin (23.25 mm) in the exact ratio, so you can picture the real size.