Natural teal sapphire weighing 1.59 carats, featuring a radiant cut, greenish blue colour and heat treatment. Offered as a loose gemstone for custom engagement rings, pendants and bespoke jewellery designs, with certification from an authorised gemologist.
This natural teal sapphire weighs 1.59 carats and displays an attractive blend of greenish blue tones. Its radiant cut enhances brilliance while maintaining clean geometric lines, making it an excellent choice for custom engagement rings, pendants and personalised fine jewellery. Sold as a loose gemstone, it provides complete flexibility for bespoke jewellery creation.
Quick Summary
- Natural Teal Sapphire
- Weight: 1.59 Carats
- Radiant Cut Loose Gemstone
- Colour: Greenish Blue
- Treatment: Heat Treated
- Birthstone: September
- Mohs Hardness: 9
- Gemologist Certificate Included
Teal sapphire is a natural variety of corundum valued for its distinctive combination of blue and green hues. Heat treatment is a widely accepted enhancement within the gemstone industry that improves colour and appearance while preserving the gemstone's natural origin. Sapphire ranks 9 on the Mohs hardness scale, making it suitable for jewellery intended for regular wear when professionally set.
Gemstone Specifications
- Gemstone: Natural Sapphire
- Species: Natural Corundum
- Variety: Teal Sapphire
- Shape & Cut: Radiant Cut
- Weight: 1.59 Carats
- Colour: Greenish Blue
- Measurements: 5.70 × 6.20 × 4.50 mm
- Treatment: Heat Treated
- Birthstone: September
- Sold As: Loose Gemstone (Unset)
Certification & Authenticity
This sapphire includes a certificate issued by an authorised gemologist confirming its authenticity and disclosed treatment information.
Seller Notes: A clean natural gemstone. Minor internal characteristics may be visible under magnification and are consistent with natural sapphire formation.
Jewellery Applications
This listing is for a loose gemstone only and does not include a finished jewellery setting.
Suitable applications include:
- Custom Engagement Rings
- Solitaire Ring Designs
- Halo Ring Designs
- Pendants and Necklaces
- Anniversary Jewellery
- September Birthstone Jewellery
- Custom Fine Jewellery Projects
- Gemstone Collections
Custom jewellery services are available using yellow gold, white gold, rose gold, silver and platinum settings. Please contact us to discuss bespoke design options.
Why Choose This Gemstone?
Teal sapphires are appreciated for their naturally occurring blend of blue and green tones, offering an alternative to traditional blue sapphires. The radiant cut maximises brilliance while maintaining crisp edges, making it a popular choice for contemporary jewellery designs. As the September birthstone, sapphire has traditionally been associated with wisdom, loyalty and sincerity.
Explore Related Collections
Browse related collections and educational resources:
- Blue-Green & Teal Sapphire Collection
- Natural Sapphire Collection
- All Loose Sapphire Gemstones
- Custom & Ready-to-Wear Sapphire Jewellery
- Contact Us
- Gemstone Education Articles
Shipping & Returns
Worldwide shipping is available. Buyers are responsible for any applicable customs duties or import taxes. Returns are accepted according to our published return policy, provided the gemstone is returned unused and in its original condition.
Frequently Asked Questions
Is this a natural teal sapphire?
Yes. This gemstone is a natural teal sapphire belonging to the corundum mineral family.
Has this sapphire been treated?
Yes. This gemstone has undergone standard heat treatment, which is disclosed in the product specifications and certification.
Does this sapphire include certification?
Yes. A certificate from an authorised gemologist is included.
Is this sold as a finished ring?
No. This listing is for a loose gemstone only. Custom jewellery settings are available separately.
Can this gemstone be used for an engagement ring?
Yes. Its durability, radiant cut and attractive greenish blue colour make it suitable for custom engagement ring and bespoke jewellery designs.








