Natural Blue Sapphire 0.57ct Untreated Oval Cut
€31.00 EURSKU: sa658
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This 5.2x4.5mm oval blue sapphire from Madagascar is a beautifully transparent untreated stone with a delicate pale blue color touched by subtle silvery tones and gentle warmth, the hallmarks of a genuine unheated sapphire. The bright light return across the well-cut oval facets creates a sparkling, luminous quality that showcases the stone's natural clarity and transparency. Natural inclusions at SI clarity are part of its authentic geological character.
Unheated sapphires from Madagascar are increasingly rare and highly valued by collectors and gem enthusiasts. This stone's delicate, naturally pale color is the result of geological conditions alone, without any heat enhancement, making it a genuine rarity in the market. At 0.57ct and 5.2x4.5mm, this untreated pale blue oval is a beautiful choice for a natural sapphire pendant, an engagement ring, or a discerning collector who prioritizes authenticity above all.
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: 5.2 × 4.5 mm
Shown next to a €1 coin (23.25 mm) in the exact ratio, so you can picture the real size.
