Natural Blue Sapphire 0.58ct 4.4mm Heated Round Cab
€9.20 EURSKU: sa419-5
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This 4.4mm round cabochon from Madagascar presents a deep, vibrant teal-blue color with striking vivid blue flashes that dance across the polished dome. The smooth surface catches the light beautifully, and the interplay between the deep body color and the bright highlights gives this cabochon a lively, dynamic quality. Natural inclusions at SI clarity are enclosed within the dome, part of its genuine geological character.
Cabochon-cut sapphires offer a soft, organic presentation of color, but this Madagascar specimen shows it is possible to have real liveliness even without facets. Heat treatment has enhanced its rich teal-blue color. At 0.58ct and 4.4mm, it makes an excellent choice for a bezel-set ring, pendant, or earrings, and pairs particularly well with yellow or white gold settings.
Natural blue sapphire, September birthstone - 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
- 9
- Cleavage
- None
- Durability
- Excellent
- Soapy water
- Safe
- Ultrasonic
- Avoid
- Steam
- Avoid
About sapphire
Sapphire is corundum in every color except red. At 9 on the Mohs scale it is second only to diamond, and it is also very tough with no cleavage, so it rarely chips or splits when knocked. Together that makes it one of the most durable gemstones for everyday wear, rings included.
Cleaning
Warm water, a drop of mild dish soap and a soft brush, then rinse and dry with a soft cloth. Skip ultrasonic and steam cleaners: cabochons usually contain fine inclusions or fissures that vibration and heat can open.
Wear and storage
Sapphire is very hard, so it can scratch softer gemstones stored with it. Only diamond can scratch it, so keep it apart from diamonds and store it on its own in a gem jar or a soft pouch.
For your jeweler
This sapphire is heated, and the color from heating is stable. Sapphire handles normal setting, re-tipping and polishing well. If the stone has fissures that reach the surface, keep it out of direct torch flame and acid pickle.
Scale
True to scale: 4.4 mm
Shown next to a €1 coin (23.25 mm) in the exact ratio, so you can picture the real size.
