Natural teal blue green sapphire weighing 1.73 carats, featuring a radiant cut, teal blue green colour, VVS clarity and untreated (no heat) status. Offered as a loose gemstone for custom engagement rings, pendants and bespoke jewellery, complete with certification from an authorised gemmologist.
This natural teal blue green sapphire displays vibrant blue and green tones in a single gemstone, creating a distinctive appearance appreciated by buyers seeking an alternative to traditional blue sapphires. Sold as a loose gemstone, it offers complete flexibility for creating a custom engagement ring, pendant or personalised jewellery design.
Quick Summary
- Natural teal blue green sapphire
- Weight: 1.73 carats
- Radiant cut loose gemstone
- Clarity: VVS
- Colour: Teal Blue Green
- Treatment: No Heat (Untreated)
- Birthstone: September
- Authorised gemmologist certificate included
The radiant cut combines brilliant-style faceting with structured corners, enhancing sparkle while showcasing the gemstone's natural colour. Sapphire belongs to the corundum family and ranks 9 on the Mohs hardness scale, making it suitable for jewellery intended for regular wear when professionally set.
As the September birthstone, sapphire has traditionally been associated with wisdom, loyalty and sincerity. Teal sapphires are chosen for their distinctive colour and contemporary appearance while maintaining the durability expected of natural sapphire.
Gemstone Specifications
- Identification: Natural Sapphire
- Species: Natural Corundum
- Variety: Teal Blue Green Sapphire
- Shape & Cut: Radiant Cut
- Clarity: VVS
- Weight: 1.73 Carats
- Colour: Teal Blue Green
- Measurements: 6.70 × 5.80 × 4.30 mm
- Treatment: No Heat (Untreated)
- Birthstone: September
Certification & Authenticity
This sapphire includes a certificate issued by an authorised gemmologist confirming its natural origin and disclosed gemstone characteristics.
Seller Notes: Clean gemstone. Minor natural internal characteristics may be visible under magnification and are consistent with natural earth-mined 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
- Radiant cut solitaire rings
- Halo ring designs
- Pendants and necklaces
- Fine bespoke jewellery
- September birthstone jewellery
- Gemstone collections
Custom jewellery services are available using yellow gold, white gold, rose gold, silver and platinum, with optional diamond accents.
Why Choose This Gemstone?
Natural teal blue green sapphires are valued for their distinctive colour and durability. The radiant cut enhances brilliance while preserving the gemstone's elegant proportions, making it a popular choice for modern engagement rings and bespoke jewellery. Every natural sapphire displays its own unique internal characteristics and colour distribution.
Explore Related Collections
Browse related collections and educational resources:
- Teal & Blue Green Sapphire Collection
- All Loose Sapphire Gemstones
- Gemstone Education Articles
- Custom & Ready-to-Wear Sapphire Jewellery
Shipping & Returns
Worldwide shipping is available with tracking and insurance included. Delivery times vary depending on destination. Buyers are responsible for any applicable customs duties or import taxes.
Returns are accepted within 15 days of delivery provided the gemstone is returned unused and in its original condition, in accordance with our published return policy.
Frequently Asked Questions
Is this a natural teal blue green sapphire?
Yes. This gemstone is a natural earth-mined sapphire and is not synthetic or laboratory created.
Has this sapphire been heat treated?
No. This gemstone is untreated (no heat), as disclosed in the specifications and gemmologist certificate.
Is this supplied as a finished ring?
No. This listing is for a loose gemstone only. Custom jewellery settings are available separately.
Is a 1.73 carat radiant cut sapphire suitable for an engagement ring?
Yes. Its size, durability and radiant cut make it well suited for custom engagement ring designs intended for everyday wear.
Will the gemstone colour vary under different lighting?
Yes. Natural teal sapphires may display subtle colour variation under daylight, indoor lighting and studio lighting due to their natural composition.








