Natural bi colour sapphire weighing 1.13 carats, featuring an emerald cut, green and yellow natural colour zoning, 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 bi colour sapphire displays a distinctive combination of green and yellow within a single crystal, creating the unique colour zoning that makes every gemstone visually individual. Sold as a loose gemstone, it offers complete flexibility for creating a custom engagement ring, pendant or bespoke fine jewellery design.
Quick Summary
- Natural bi colour sapphire
- Weight: 1.13 carats
- Emerald cut loose gemstone
- VVS clarity
- Colour: Green Yellow Bi Colour
- Treatment: No Heat (Untreated)
- Birthstone: September
- Certificate from an authorised gemmologist included
The emerald cut highlights the gemstone's natural colour zoning through elegant step-cut faceting while enhancing transparency and 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 September birthstone, sapphire has traditionally been associated with wisdom, sincerity and loyalty. Bi colour sapphires provide a distinctive alternative to single-colour gemstones, with each stone displaying its own natural colour pattern.
Gemstone Specifications
- Identification: Natural Sapphire
- Species: Natural Corundum
- Variety: Bi Colour Sapphire
- Shape & Cut: Emerald Cut
- Clarity: VVS
- Weight: 1.13 Carats
- Colour: Green Yellow Bi Colour
- Measurements: 4.80 × 6.30 × 3.50 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. 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 applications include:
- Custom engagement rings
- Emerald cut solitaire rings
- Halo ring settings
- 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 unique. The emerald cut showcases this natural zoning while providing elegant symmetry and timeless appeal for custom jewellery designs. Their durability and distinctive appearance make them a popular choice for buyers seeking something different from traditional sapphires.
Explore Related Collections
Browse related collections and educational resources:
- Bi Colour, Blue Green & Teal 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 may 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 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 ring?
No. This listing is for a loose gemstone only. Custom jewellery settings are available separately.
Is an emerald cut bi colour sapphire suitable for an engagement ring?
Yes. The emerald cut highlights the gemstone's natural colour zoning while offering elegant symmetry and durability, making it well suited for custom engagement ring designs.
Why is every bi colour sapphire unique?
Bi colour sapphires naturally display two colours within a single crystal during formation. The colour distribution varies from stone to stone, making each gemstone visually distinctive.








