Natural Blue Sapphire 0.57ct 4.8mm Untreated Round Cut
€31.00 EURSKU: sa657
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This 4.8mm round-cut blue sapphire from Madagascar is a completely untreated stone of extraordinary transparency and brilliance. The color is a delicate, near-colorless pale blue with hints of icy silver, giving it a diamond-like brightness that is truly captivating. The bright light return across the well-cut round facets gives the stone a luminous look at this size. Natural inclusions at SI clarity speak to its genuine geological origin and untreated status.
Completely unheated natural sapphires of this transparency are remarkably rare, and this pale blue Madagascar stone is a genuinely special find. Its color is the product of geological conditions alone, without any enhancement, a hallmark of authenticity prized by collectors worldwide. At 0.57ct and 4.8mm, this near-colorless pale blue untreated round is an ideal choice for those seeking a rare, transparent natural sapphire for a special ring, pendant, or collector's acquisition.
Natural untreated 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
- Usually safe
- Steam
- Usually safe
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 toothbrush are all you need. Brush behind the stone too, where dust and skin oils collect, then rinse and dry with a soft cloth. Ultrasonic and steam cleaners are usually fine for a faceted sapphire, but skip them if the stone has fissures that reach the surface.
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 untreated. 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: 4.8 mm
Shown next to a €1 coin (23.25 mm) in the exact ratio, so you can picture the real size.
