Natural parti sapphire weighing 1.29 carats, featuring an oval cut, greenish yellow bi-colour appearance, VVS clarity and heat treatment. Offered as a loose gemstone for custom engagement rings, pendants and bespoke jewellery designs, complete with certification from an authorised gemologist.
This natural parti sapphire displays multiple colours within a single crystal, creating its distinctive greenish yellow bi-colour appearance. Weighing 1.29 carats and supplied as a loose gemstone, it offers flexibility for custom jewellery while showcasing the natural colour zoning that makes parti sapphires unique.
Quick Summary
- Natural parti sapphire loose gemstone
- Weight: 1.29 carats
- Oval cut
- VVS clarity
- Colour: Greenish Yellow Bi-Colour
- Treatment: Heat Treated
- Birthstone: September
- Gemologist certificate included
Parti sapphires belong to the natural corundum family and are recognised for displaying two or more colours within the same gemstone. Their distinctive colour zoning creates an appearance that changes subtly under different lighting conditions, making each stone visually individual.
Sapphire ranks 9 on the Mohs hardness scale, making it suitable for jewellery intended for regular wear when professionally set. Oval-cut sapphires provide balanced proportions and an elegant appearance for engagement rings and custom jewellery.
Gemstone Specifications
- Identification: Natural Sapphire
- Species: Natural Corundum
- Variety: Parti Sapphire
- Shape & Cut: Oval Cut
- Clarity: VVS
- Weight: 1.29 Carats
- Colour: Greenish Yellow Bi-Colour
- Measurements: 5.90 × 7.70 × 3.45 mm
- Treatment: Heat Treated
- Birthstone: September
Certification & Authenticity
This gemstone includes a certificate issued by an authorised gemologist confirming its identity as a natural sapphire and disclosing treatment information.
Seller Notes: A clean gemstone. Natural internal characteristics may be visible under magnification and are consistent with natural sapphire formation.
Jewellery Applications
This listing is for a loose gemstone only and does not include a finished jewellery setting.
Suitable applications include:
- Custom engagement rings
- Anniversary rings
- Solitaire ring designs
- Halo ring settings
- 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 settings with optional diamond accents.
Why Choose This Gemstone?
Parti sapphires are appreciated for their naturally occurring colour zoning and distinctive appearance. Each gemstone displays its own unique combination of colours, making every stone different. Their durability and versatility make them suitable for custom jewellery as well as gemstone collections.
As the birthstone for September, sapphire has traditionally been associated with wisdom, loyalty and sincerity, making it a meaningful choice for personalised jewellery.
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 parti sapphire?
Yes. This gemstone is a natural earth-mined sapphire displaying a naturally occurring bi-colour appearance.
Has this sapphire been treated?
Yes. This gemstone has undergone heat treatment as disclosed in the product specifications.
Does this listing include a ring?
No. This listing is for a loose gemstone only. Custom jewellery settings are available separately.
What is a parti sapphire?
A parti sapphire displays two or more colours within a single crystal due to natural colour zoning. This gemstone shows a greenish yellow bi-colour appearance.
Can this gemstone be used for an engagement ring?
Yes. Its durability, oval cut and distinctive colour make it suitable for custom engagement ring designs and other fine jewellery.








