Natural teal blue green bi colour sapphire weighing 1.38 carats, featuring an emerald 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 designs, complete with certification from an authorised gemmologist.
This natural teal blue green bi colour sapphire displays two naturally occurring colours within a single crystal, creating the distinctive appearance that makes bi colour sapphires unique. Sold as a loose gemstone, it offers complete flexibility for creating a custom engagement ring, pendant or bespoke fine jewellery design.
Quick Summary
- Natural teal blue green bi colour sapphire
- Weight: 1.38 carats
- Emerald cut loose gemstone
- Clarity: VVS
- Colour: Teal Blue Green
- Treatment: No Heat (Untreated)
- Birthstone: September
- Certificate from an authorised gemmologist included
The emerald cut emphasises the gemstone's natural colour zoning while producing elegant step-cut reflections and balanced symmetry. 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 birthstone for September, sapphire has traditionally been associated with wisdom, loyalty and sincerity. Bi colour sapphires offer a distinctive alternative to traditional blue sapphires while retaining the durability and timeless appeal for which natural sapphires are valued.
Gemstone Specifications
- Identification: Natural Sapphire
- Species: Natural Corundum
- Variety: Teal Blue Green Bi Colour Sapphire
- Shape & Cut: Emerald Cut
- Clarity: VVS
- Weight: 1.38 Carats
- Colour: Teal Blue Green
- Measurements: 5.40 × 6.40 × 3.90 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: A clean gemstone. Minor natural 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 for:
- Custom engagement rings
- Emerald cut solitaire rings
- Halo ring designs
- Pendants and necklaces
- Bespoke fine jewellery
- September birthstone jewellery
- Gemstone collections
Custom jewellery services are available using yellow gold, white gold, rose gold, silver and platinum settings, with optional diamond accents.
Why Choose This Gemstone?
Natural bi colour sapphires display two naturally occurring colours within a single gemstone, making every stone visually distinctive. Their durability, elegant appearance and unique colour patterns make them a popular choice for custom jewellery and buyers seeking an alternative to traditional blue sapphires.
Explore Related Collections
Browse related collections and educational resources:
- Blue Green, Teal & Bi Colour Sapphire Collection
- All Loose Sapphire Gemstones
- Gemstone Education Articles
- Custom & Ready-to-Wear Sapphire Jewellery
Shipping & Returns
Free worldwide standard 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 bi colour sapphire?
Yes. This gemstone is a natural earth-mined teal blue green bi colour sapphire and is not synthetic or laboratory created.
Has this sapphire received heat treatment?
No. This gemstone is untreated (no heat), as disclosed in the specifications and gemmologist certificate.
Is this supplied as a finished engagement ring?
No. This listing is for a loose gemstone only. Custom jewellery settings are available separately.
Is an emerald cut sapphire suitable for an engagement ring?
Yes. The emerald cut offers elegant symmetry and showcases the gemstone's natural colour zoning, making it well suited for a custom engagement ring.
Will the gemstone appear different under various lighting conditions?
Yes. Natural bi colour sapphires may display subtle colour variation under daylight, indoor lighting and other lighting environments due to their natural colour zoning.








