Natural Australian parti sapphire weighing 1.10 carats, featuring a cushion cut, green-yellow parti colour, SI 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 Australian parti sapphire displays a distinctive combination of green and yellow within a single crystal, creating the unique multicolour appearance that parti sapphires are known for. Sold as a loose gemstone, it offers complete flexibility for creating a custom engagement ring, pendant or personalised fine jewellery piece.
Quick Summary
- Natural Australian parti sapphire
- Weight: 1.10 carats
- Cushion cut loose gemstone
- Clarity: SI
- Colour: Green Yellow Parti
- Treatment: No Heat / Untreated
- Birthstone: September
- Gemmologist certificate included
The cushion cut enhances brilliance while showcasing the gemstone's natural colour zoning and soft outline. 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. Australian parti sapphires are appreciated for their naturally occurring blend of colours, giving every gemstone its own distinctive appearance.
Gemstone Specifications
- Identification: Natural Sapphire
- Species: Natural Corundum
- Variety: Australian Parti Sapphire
- Shape & Cut: Cushion Cut
- Clarity: SI
- Weight: 1.10 Carats
- Colour: Parti Green Yellow
- Measurements: 5.00 × 5.20 × 4.40 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: Natural crystal inclusions, feather inclusions and colour banding are present. These characteristics are commonly found in natural earth-mined sapphires and are consistent with natural gemstone formation.
Jewellery Applications
This listing is for a loose gemstone only and does not include a finished jewellery setting.
Suitable for:
- Custom engagement rings
- Cushion cut solitaire rings
- Halo ring designs
- Pendants and necklaces
- Fine bespoke jewellery
- September birthstone jewellery
- Gemstone collections
Custom jewellery services are available in yellow gold, white gold, rose gold, silver and platinum with optional diamond accents.
Why Choose This Gemstone?
Australian parti sapphires are recognised for their naturally occurring combination of multiple colours within a single gemstone. Each stone displays its own unique colour distribution, making every sapphire visually distinctive. Their durability, individuality and versatility make them an excellent choice for custom jewellery and gemstone collectors seeking an alternative to traditional single-colour sapphires.
Explore Related Collections
Browse related collections and educational resources:
- Parti, Teal & Blue Green 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 Australian parti sapphire?
Yes. This gemstone is a natural earth-mined Australian parti 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 a cushion cut parti sapphire suitable for an engagement ring?
Yes. The cushion cut offers an attractive balance of brilliance and soft edges while highlighting the gemstone's natural colour zoning, making it well suited for custom engagement ring designs.
Will the gemstone appear different under different lighting?
Yes. Natural parti sapphires may display subtle colour variation under daylight, indoor lighting and studio lighting due to their natural colour zoning.








