Natural blue green parti sapphire weighing 1.18 carats, featuring a radiant cut, blue green and yellow colour zoning, heat treatment and sold as a loose gemstone for custom engagement rings, pendants and bespoke jewellery designs. Includes certification from an authorised gemologist.
This natural blue green parti sapphire displays a distinctive blend of blue, green and yellow within a single gemstone, creating the unique multi-colour appearance often associated with parti sapphires. Weighing 1.18 carats and offered as a loose gemstone, it provides complete flexibility for custom jewellery creation while showcasing natural colour variation and brilliance.
Quick Summary
- Natural Blue Green Parti Sapphire
- Weight: 1.18 Carats
- Radiant Cut Loose Gemstone
- Colour: Blue Green with Yellow Colour Zoning
- Treatment: Heat Treated
- Birthstone: September
- Gemologist Certificate Included
- Sold Loose (Unset)
The radiant cut combines the brilliance of a brilliant-cut gemstone with the elegant outline of an emerald-style shape, enhancing light performance while showcasing the sapphire's natural colour zoning. 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. Blue green parti sapphires are appreciated for their naturally occurring blend of colours, giving every gemstone its own distinctive appearance.
Gemstone Specifications
- Gemstone: Natural Sapphire
- Species: Natural Corundum
- Variety: Blue Green Parti Sapphire
- Shape & Cut: Radiant
- Weight: 1.18 Carats
- Colour: Blue Green with Yellow Colour Zoning
- Measurements: 5.40 × 6.50 × 3.70 mm
- Treatment: Heat Treated
- Birthstone: September
- Sold As: Loose Gemstone
Certification & Authenticity
This sapphire includes a certificate issued by an authorised gemologist confirming its identity and disclosed gemstone characteristics.
Seller Notes: A clean gemstone. Minor natural internal characteristics may be present and are consistent with the formation of natural earth-mined sapphires.
Jewellery Applications
This listing is for a loose gemstone only and does not include a finished jewellery setting.
Suitable applications include:
- Custom engagement rings
- Solitaire ring designs
- Halo ring settings
- Pendants and necklaces
- Custom 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?
Blue green parti sapphires are valued for their naturally occurring combination of multiple colours within a single crystal. Their distinctive appearance offers an alternative to traditional blue sapphires while retaining the durability and versatility for which natural sapphires are recognised. Every parti sapphire displays its own individual colour pattern, making each gemstone unique.
Explore Related Collections
Browse related collections and educational resources:
- Blue Green & Teal Sapphire Collection
- Natural Sapphire Collection
- All Loose Sapphire Gemstones
- Custom & Ready-to-Wear Sapphire Jewellery
- Gemstone Education Articles
- Contact Us
Shipping & Returns
Worldwide shipping is available. 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 sapphire?
Yes. This gemstone is a natural earth-mined sapphire and is supplied with certification from an authorised gemologist.
Has this sapphire been treated?
Yes. This sapphire has undergone heat treatment, which is disclosed in the gemstone specifications.
Is this sold as a finished ring?
No. This listing is for a loose gemstone only. Custom jewellery settings are available separately.
Can this sapphire be used for an engagement ring?
Yes. Its radiant cut, durability and balanced proportions make it suitable for custom engagement ring designs.
Why does this sapphire display multiple colours?
Parti sapphires naturally display multiple colours within the same crystal due to variations during gemstone formation. This natural colour zoning gives each gemstone its own unique appearance.








