Natural green sapphire weighing 1.66 carats, featuring a radiant cut, greenish yellow colour and heat-treated enhancement. Offered as a loose gemstone for custom rings, pendants and bespoke jewellery, with certification from an authorised gemologist.
This natural green sapphire weighs 1.66 carats and displays an attractive greenish yellow colour with excellent brilliance. Sold as a loose gemstone, it offers complete flexibility for creating a custom engagement ring, pendant or personalised jewellery design while showcasing the durability and timeless appeal of natural sapphire.
Quick Summary
- Natural Green Sapphire
- Weight: 1.66 Carats
- Radiant Cut Loose Gemstone
- Colour: Greenish Yellow
- Clarity: VS
- Treatment: Heat Treated
- Birthstone: September
- Gemologist Certificate Included
Green sapphires belong to the natural corundum family and are valued for their distinctive colours, durability and suitability for fine jewellery. The radiant cut combines brilliance with clean geometric lines, making it an excellent choice for both contemporary and classic jewellery designs.
Ranking 9 on the Mohs hardness scale, sapphire is suitable for jewellery intended for regular wear when professionally set. As the September birthstone, sapphire has traditionally been associated with wisdom, sincerity and loyalty.
Gemstone Specifications
- Identification: Natural Sapphire
- Species: Natural Corundum
- Variety: Green Sapphire
- Shape & Cut: Radiant
- Clarity: VS
- Weight: 1.66 Carats
- Colour: Greenish Yellow
- Measurements: 5.20 × 7.40 × 4.10 mm
- Treatment: Heat Treated
- Birthstone: September
Certification & Authenticity
This sapphire includes a certificate issued by an authorised gemologist confirming its natural identity and disclosed treatment information.
Seller Notes: A natural crystal inclusion is visible under magnification. Such internal characteristics are typical of 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 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 in yellow gold, white gold, rose gold, silver and platinum. Contact us to discuss your preferred design.
Why Choose This Gemstone?
Natural green sapphires are appreciated for their distinctive colour range, durability and versatility in jewellery design. Every gemstone displays unique natural characteristics, making each sapphire an individual choice for bespoke jewellery and gemstone collections.
Explore Related Collections
Browse related collections and educational resources:
- Green, Teal & Blue Sapphire Collection
- Natural Sapphire Collection
- All Loose Sapphire Gemstones
- Custom & Ready-to-Wear Jewellery
- Gemstone Education Articles
- Contact Us
Shipping & Returns
Worldwide shipping is available. Buyers are responsible for applicable customs duties or import taxes. Returns are accepted according to our published return policy, provided the gemstone is returned unused and in its original condition.
Frequently Asked Questions
Is this a natural green sapphire?
Yes. This gemstone is identified as a natural sapphire and displays a greenish yellow colour.
Has this sapphire been treated?
Yes. This sapphire has undergone heat treatment, which is disclosed in the specifications and gemologist certificate.
Does this gemstone include certification?
Yes. A certificate from an authorised gemologist is included.
Is this sold as a finished ring?
No. This listing is for a loose gemstone only. Custom jewellery settings are available separately.
Can this gemstone be used for an engagement ring?
Yes. Its radiant cut and durability make it well suited for custom engagement ring designs and other fine jewellery applications.








