Natural Parti Sapphire weighing 4.02 carats, featuring an Asscher cut, bi-colour green and yellow tones, VVS clarity and heat treatment. Offered as a loose gemstone for custom jewellery and supplied with certification from an authorised gemmologist.
This natural parti sapphire displays a distinctive combination of green and yellow colours within a single gemstone. Weighing 4.02 carats and cut in an Asscher style, it offers strong visual presence and geometric symmetry, making it suitable for custom engagement rings, pendants, and bespoke jewellery designs.
Quick Summary
- Gemstone: Natural Parti Sapphire
- Weight: 4.02 Carat
- Shape: Asscher Cut
- Colour: Bi-Colour Green & Yellow
- Clarity: VVS
- Treatment: Heat Treated
- Birthstone: September
- Certification: Included
Parti sapphires are natural sapphires that display multiple colours within a single gemstone. Their distinctive colour zoning creates a unique appearance that differs from traditional single-colour sapphires, making them popular among collectors and buyers seeking one-of-a-kind gemstones.
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. The Asscher cut highlights symmetry, clarity, and colour distribution through its step-cut faceting pattern.
As the birthstone for September, sapphire is traditionally associated with wisdom, sincerity, and loyalty. Its durability and timeless appeal have made it a popular choice for engagement rings and heirloom-inspired jewellery.
Gemstone Specifications
- Identification: Natural Sapphire
- Species: Natural Corundum
- Variety: Parti Sapphire
- Shape / Cut: Asscher Cut
- Clarity: VVS
- Weight: 4.02 Carat
- Colour: Bi-Colour Green Yellow
- Measurements: 8.80 × 9.50 × 5.00 mm
- Treatment: Heat Treated
- Birthstone: September
Certification & Authenticity
This sapphire includes certification from an authorised gemmologist confirming its identity as a natural sapphire and disclosing treatment information.
Seller Notes: Clean appearance. Natural characteristics may be visible under magnification and are consistent with natural gemstone formation.
Colour appearance may vary slightly under different lighting environments due to the gemstone's natural colour zoning and bi-colour composition.
Jewellery Applications
This gemstone is sold loose and is not supplied as a finished ring or jewellery item.
- Custom Engagement Rings
- Statement Rings
- 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, with optional diamond accents.
Why Choose This Parti Sapphire?
Parti sapphires are appreciated for displaying multiple natural colours within a single gemstone. The combination of green and yellow tones, large 4.02 carat size, VVS clarity, and Asscher cut make this gemstone an attractive option for buyers seeking a distinctive sapphire for custom jewellery or collecting.
Explore Related Sapphire Collections
Browse our Parti, Teal and Blue Green Sapphire Collection, explore all Loose Sapphire Gemstones, or learn more through our Gemstone Education Articles.
Shipping & Returns
Worldwide shipping is available with tracking and insurance included. Delivery times vary by destination. Buyers are responsible for applicable customs duties or import taxes.
Returns are accepted according to our published return policy. Refunds are processed after the returned gemstone has been received and inspected.
Frequently Asked Questions
Is this a natural parti sapphire?
Yes. This gemstone is identified as a natural parti sapphire from the corundum family.
What colours are present in this sapphire?
This sapphire displays natural green and yellow colour zoning, creating a bi-colour appearance.
Has this sapphire been treated?
Yes. This gemstone has undergone heat treatment, which is disclosed in the specifications.
Does the sapphire include certification?
Yes. Certification from an authorised gemmologist is included.
Can this gemstone be used in an engagement ring?
Yes. Its durability, size, and Asscher cut make it suitable for custom engagement ring designs.
Is this sold as a loose gemstone?
Yes. This sapphire is sold loose and is not supplied as a finished jewellery item.








