Natural bi colour blue green sapphire weighing 2.14 carats, featuring a cushion cut, VS clarity and no heat treatment. Offered as a loose gemstone for custom jewellery and supplied with certification from an authorised gemmologist.
This natural blue green sapphire displays a distinctive combination of blue and green tones within a single gemstone. Weighing 2.14 carats and cut in a classic cushion shape, it is offered as a loose sapphire suitable for custom engagement rings, pendants and bespoke jewellery projects while preserving its natural character.
Quick Summary
- Gemstone: Natural Blue Green Sapphire
- Weight: 2.14 Carat
- Shape: Cushion Cut
- Colour: Bi Colour Blue Green
- Treatment: No Heat (Unheated)
- Clarity: VS
- Birthstone: September
- Certification: Included
Blue green sapphires belong to the corundum family and are valued for their durability, natural colour variation and individuality. With a Mohs hardness of 9, sapphire is suitable for jewellery intended for regular wear when professionally mounted.
As a September birthstone, sapphire has traditionally been associated with wisdom, loyalty and sincerity. Bi colour sapphires are appreciated for their naturally occurring colour transitions, making every gemstone visually distinctive.
Gemstone Specifications
- Identification: Natural Sapphire
- Species: Natural Corundum
- Variety: Blue Green Sapphire
- Shape / Cut: Cushion Cut
- Clarity: VS
- Weight: 2.14 Carat
- Colour: Bi Colour Blue Green
- Measurements: 6.40 × 6.70 × 5.10 mm
- Treatment: No Heat (Unheated)
- Birthstone: September
Certification & Authenticity
This gemstone includes certification from an authorised gemmologist confirming its identity as a natural sapphire and its disclosed no-heat treatment status.
Seller Notes: Needle-like inclusions are visible under magnification. These characteristics are consistent with the natural formation of earth-mined sapphires.
Jewellery Applications
This gemstone is sold loose and is not supplied as a finished jewellery item.
- Custom Engagement Rings
- Solitaire Ring Designs
- Pendants and Necklaces
- Bespoke Fine Jewellery
- September Birthstone Jewellery
- Gemstone Collections
Custom jewellery services are available using gold, rose gold, white gold, silver and platinum settings.
Why Choose This Gemstone?
Bi colour sapphires naturally display two colour zones within a single crystal, creating a unique appearance that cannot be exactly duplicated. Combined with a cushion cut and unheated status, this gemstone offers an individual option for buyers seeking a distinctive natural sapphire.
Explore Related Collections
Browse our Blue Green & Teal Sapphire Collection | Loose Sapphire Collection | Gemstone Education Articles
Shipping & Returns
Worldwide shipping includes tracking and insurance. Buyers are responsible for any applicable customs duties or import taxes. Returns are accepted according to our published return policy.
Frequently Asked Questions
Is this a natural sapphire?
Yes. This gemstone is identified as a natural blue green sapphire from the corundum family.
Has this sapphire been heated?
No. This gemstone is listed as having received no heat treatment.
Does the gemstone include certification?
Yes. Certification from an authorised gemmologist is included.
Can this sapphire be used for an engagement ring?
Yes. Its durability and cushion cut make it suitable for custom engagement ring designs.
Why is every bi colour sapphire different?
Natural colour zoning develops during crystal growth, giving each bi colour sapphire its own unique pattern and appearance.








