Natural blue green sapphire weighing 1.00 carat, featuring a heart cut, green yellow colour, heat treatment and sold as a loose gemstone for custom jewellery. Includes certification from an authorised gemmologist.
This natural sapphire weighs 1.00 carat and features an elegant heart cut with distinctive green yellow colour characteristics. Offered as a loose gemstone, it is suitable for custom engagement rings, pendants and bespoke jewellery projects, allowing complete flexibility in design and setting.
Quick Summary
- Natural Sapphire
- Weight: 1.00 Carat
- Shape: Heart Cut
- Colour: Green Yellow
- Treatment: Heat Treated
- Birthstone: September
- Sold as a loose gemstone
- Gemmologist certificate included
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. Heart-cut sapphires combine durability with a distinctive shape that is well suited for personalised jewellery designs.
As the birthstone for September, sapphire has traditionally been associated with wisdom, loyalty and sincerity. Every natural sapphire displays unique internal characteristics and colour variations that reflect its natural formation.
Gemstone Specifications
- Identification: Natural Sapphire
- Species: Natural Corundum
- Variety: Blue Green Sapphire
- Shape & Cut: Heart Cut
- Weight: 1.00 Carat
- Colour: Green Yellow
- Measurements: 5.30 × 6.20 × 3.50 mm
- Treatment: Heat Treated
- Hardness: 9 on the Mohs Scale
- Birthstone: September
- Sold As: Loose Gemstone
Certification & Authenticity
This natural sapphire includes a certificate from an authorised gemmologist confirming gemstone identification and disclosed treatment.
Seller Notes: A clean gemstone with natural colour banding present. These characteristics are commonly found in natural 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
- Heart-shaped solitaire rings
- Pendants and necklaces
- Fine bespoke jewellery
- September birthstone jewellery
- Gemstone collections
Custom jewellery services are available in gold, rose gold, white gold, silver and platinum. Please contact us to discuss bespoke design options.
Why Choose This Gemstone?
Natural blue green sapphires are appreciated for their distinctive colour characteristics and versatility in jewellery design. Their durability, individuality and suitability for everyday wear make them an attractive choice for custom jewellery and gemstone enthusiasts seeking a unique natural sapphire.
Explore Related Collections
Browse related collections and educational resources:
- Blue Green & Teal Sapphire Collection
- Natural Sapphire Collection
- All Loose Sapphire Gemstones
- 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 according to our published return policy provided the gemstone is returned unused and in its original condition.
Frequently Asked Questions
Is this a natural sapphire?
Yes. This gemstone is a natural sapphire belonging to the corundum mineral family.
Has this sapphire been treated?
Yes. This gemstone has undergone heat treatment, which is disclosed in the product specifications and certification.
Is this sold as a 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 durability and heart cut make it suitable for custom engagement ring designs when professionally set.
Does this sapphire include certification?
Yes. A certificate from an authorised gemmologist confirming identification and treatment accompanies this gemstone.








