Natural Parti Bi Colour Sapphire weighing 1.55 carats, featuring an elongated cushion cut, blue, green and yellow colour zoning, VVS clarity and no heat treatment. Offered as a loose gemstone for custom engagement rings and bespoke jewellery, with certification from an authorised gemmologist.
This natural parti bi colour sapphire weighs 1.55 carats and displays a distinctive blend of blue, green and yellow hues created by natural colour zoning. Its elongated cushion cut provides an elegant outline and attractive brilliance, making it suitable for custom engagement rings, pendants and fine jewellery designs while remaining a loose gemstone for complete design flexibility.
Quick Summary
- Gemstone: Natural Parti Bi Colour Sapphire
- Weight: 1.55 Carat
- Shape: Elongated Cushion Cut
- Colour: Blue, Green and Yellow
- Clarity: VVS
- Treatment: No Heat
- Birthstone: September
- Certification: Included
Parti sapphires are natural corundum gemstones displaying multiple colours within a single crystal. Their distinctive colour combinations make every gemstone unique and popular among buyers seeking personalised jewellery designs that differ from traditional single-colour sapphires.
With a Mohs hardness of 9, sapphire is suitable for jewellery intended for regular wear when professionally set. As the September birthstone, sapphire is traditionally associated with wisdom, loyalty and sincerity.
Gemstone Specifications
- Identification: Natural Sapphire
- Species: Natural Corundum
- Variety: Parti Bi Colour Sapphire
- Shape / Cut: Elongated Cushion Cut
- Clarity: VVS
- Weight: 1.55 Carat
- Colour: Blue, Green and Yellow Parti Colour
- Measurements: 5.00 × 8.50 × 3.50 mm
- Treatment: No Heat
- Birthstone: September
Certification & Authenticity
This sapphire includes certification from an authorised gemmologist confirming its identity as a natural sapphire and its no heat treatment status.
Seller Notes: Minor crystal inclusions are visible under magnification. These natural characteristics are consistent with earth-mined sapphires and support their natural origin.
Jewellery Applications
This gemstone is sold loose and is not supplied as a finished jewellery item. Suitable applications include:
- Custom Engagement Rings
- Solitaire Ring Designs
- Pendants and Necklaces
- Bespoke Fine Jewellery
- September Birthstone Jewellery
- Gemstone Collections
Custom jewellery services are available in gold, rose gold, white gold, silver and platinum settings with optional diamond accents.
Why Choose This Gemstone?
Natural parti sapphires are valued for their distinctive multi-colour appearance and individuality. The combination of no heat treatment, elongated cushion cut and naturally occurring colour zoning makes this gemstone an attractive option for buyers seeking a unique sapphire for custom jewellery.
Explore Related Collections
Browse our Parti, Teal & Blue Green Sapphire Collection | Loose Sapphire Collection | Gemstone Education Articles
Shipping & Returns
Free worldwide standard shipping includes tracking and insurance. 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 parti sapphire?
Yes. This gemstone is identified as a natural parti bi colour sapphire.
Has this sapphire been heated?
No. This gemstone has received no heat treatment.
Does this gemstone include certification?
Yes. Certification from an authorised gemmologist is included.
Is this sold as a loose gemstone?
Yes. This sapphire is sold loose and is not supplied as a finished jewellery item.
Can this sapphire be used for an engagement ring?
Yes. Its durability and elongated cushion cut make it suitable for custom engagement ring designs.








