Natural Blue Sapphire weighing 0.58 carat, featuring a round cut, pastel-to-sky blue colour and heat treatment, offered as a loose gemstone for custom jewellery and gemstone collections.
This natural blue sapphire weighs 0.58 carat and displays a soft pastel-to-sky blue colour. Its round cut offers balanced brilliance and versatility, making it suitable for custom engagement rings, pendants, necklaces, and other bespoke jewellery designs. As a loose gemstone, it provides flexibility for a wide range of jewellery settings.
Quick Summary
- Gemstone: Natural Blue Sapphire
- Weight: 0.58 Carat
- Shape: Round Cut
- Colour: Pastel Blue / Sky Blue
- Treatment: Heat Treated
- Clarity: VS
- Birthstone: September
- Certification: Included
Blue sapphire is a variety of natural corundum valued for its durability, colour stability, and long-standing use in fine jewellery. Ranking 9 on the Mohs hardness scale, sapphire is suitable for jewellery intended for regular wear when professionally set.
As the birthstone for September, blue sapphire is traditionally associated with wisdom, loyalty, and sincerity. Its enduring popularity has made it one of the most recognised coloured gemstones used in jewellery worldwide.
Gemstone Specifications
- Gemstone: Natural Sapphire
- Species: Natural Corundum
- Variety: Blue Sapphire
- Shape / Cut: Round
- Clarity: VS
- Weight: 0.58 Carat
- Colour: Pastel Blue / Sky Blue
- Measurements: 4.80 × 3.00 mm
- Treatment: Heat Treated
- Birthstone: September
Certification & Authenticity
This sapphire includes a certificate issued by an authorised gemologist confirming its identity as a natural blue sapphire.
Seller Notes: Crystal inclusions are visible under magnification. These characteristics are commonly found in natural gemstones and are consistent with natural formation.
Minor colour variation may appear under different lighting conditions due to natural colour zoning within the gemstone.
Jewellery Applications
This gemstone is sold loose and is not supplied as a finished jewellery item.
- Custom Engagement Rings
- Solitaire Ring Designs
- Pendants and Necklaces
- September Birthstone Jewellery
- Custom Fine Jewellery Projects
- Gemstone Collections
Custom jewellery services are available in gold, rose gold, white gold, silver, platinum, and diamond-accented settings.
Why Choose This Gemstone?
Natural blue sapphires are valued for their durability, attractive colour, and versatility in jewellery design. Their resistance to everyday wear and timeless appearance make them a popular choice for custom jewellery and meaningful birthstone gifts.
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Shipping & Returns
Worldwide shipping is available with tracking and insurance included. Orders are dispatched from Sri Lanka. Buyers are responsible for applicable customs duties or import taxes. Returns are accepted according to our published return policy.
Frequently Asked Questions
Is this a natural blue sapphire?
Yes. This gemstone is identified as a natural blue sapphire.
Has this sapphire been treated?
Yes. This sapphire has undergone heat treatment.
Does the sapphire include certification?
Yes. A certificate from an authorised gemologist is included.
Can this gemstone be used in an engagement ring?
Yes. Its durability and round cut make it suitable for custom engagement ring designs.
Is this sold as a loose gemstone?
Yes. This sapphire is sold loose and is not supplied as a finished jewellery item.








