Natural Teal Sapphire weighing 3.50 carats, featuring an octagon cut, dark teal colour and heat treatment. Offered as a loose gemstone for custom engagement rings, pendants and bespoke jewellery designs, and supplied with certification from an authorised gemologist.
This natural teal sapphire weighs 3.50 carats and displays a rich dark teal colour with excellent visual depth. Its octagon cut combines elegant proportions with attractive brilliance, making it suitable for custom engagement rings, anniversary jewellery, pendants and bespoke fine jewellery. Sold as a loose gemstone, it offers complete flexibility for custom setting.
Quick Summary
- Gemstone: Natural Teal Sapphire
- Weight: 3.50 Carat
- Shape: Octagon Cut
- Colour: Dark Teal
- Treatment: Heat Treated
- Clarity: VVS
- Birthstone: September
- Certification: Included
Teal sapphire is a variety of natural corundum appreciated for its distinctive blend of blue and green tones. Ranking 9 on the Mohs hardness scale, sapphire is highly durable and suitable for jewellery intended for regular wear when professionally set.
As the birthstone for September, sapphire has traditionally been associated with wisdom, loyalty and sincerity. The unique colour of teal sapphire offers an alternative to traditional blue sapphire while maintaining timeless elegance for custom jewellery.
Gemstone Specifications
- Gemstone: Natural Sapphire
- Species: Natural Corundum
- Variety: Teal Sapphire
- Shape / Cut: Octagon
- Clarity: VVS
- Weight: 3.50 Carat
- Colour: Dark Teal
- Measurements: 7.95 × 8.30 × 5.20 mm
- Treatment: Heat Treated
- Birthstone: September
Certification & Authenticity
This gemstone includes certification from an authorised gemologist confirming its identity as a natural sapphire and disclosing its heat treatment.
Seller Notes: Eye-clean appearance with excellent transparency. Minor natural characteristics may be visible under magnification and are consistent with natural gemstone formation.
Jewellery Applications
This gemstone is sold loose and is not supplied as a finished jewellery item. Suitable applications include:
- Custom Engagement Rings
- Anniversary Rings
- Solitaire Ring Designs
- Pendants and Necklaces
- Custom Fine Jewellery
- September Birthstone Jewellery
- Gemstone Collections
Custom jewellery services are available using gold, rose gold, white gold, silver, platinum and diamond accents.
Why Choose This Gemstone?
Natural teal sapphires are valued for their distinctive colour combination, durability and versatility in jewellery design. Their balanced blend of blue and green tones makes them a popular choice for buyers seeking an alternative to traditional blue sapphires while retaining the durability and timeless appeal of corundum.
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Shipping & Returns
Worldwide shipping is available. 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 teal sapphire?
Yes. This gemstone is identified as a natural teal sapphire from the corundum family.
Has this sapphire been treated?
Yes. This gemstone has undergone heat treatment, which is disclosed in the specifications and certification.
Does the gemstone include certification?
Yes. It includes certification from an authorised gemologist.
Can this gemstone be used in an engagement ring?
Yes. Its durability and octagon 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.








