# Natural Green Sapphire 1.18 Ct Round Cut Loose Gemstone | Heat Treated September Birthstone

**Natural green sapphire weighing 1.18 carats, featuring a round cut, green colour, VVS clarity and heat-treated status. Offered as a loose gemstone for custom rings, pendants and bespoke jewellery designs, complete with certification from an authorised gemologist.**

This natural green sapphire is a 1.18 carat loose gemstone with a classic round cut and attractive green colour. Suitable for custom engagement rings, pendants and personalised jewellery, it offers durability, versatility and timeless appeal while allowing complete flexibility for bespoke jewellery design.

### Quick Summary

-   Natural Green Sapphire
-   Weight: 1.18 Carats
-   Round Cut Loose Gemstone
-   Clarity: VVS
-   Colour: Green
-   Treatment: Heat Treated
-   Birthstone: September
-   Gemologist Certificate Included

Green sapphire is a variety of natural corundum valued for its durability and understated elegance. With a hardness of 9 on the Mohs scale, sapphire is suitable for jewellery intended for regular wear when professionally set. The round cut provides balanced brilliance and a timeless appearance suitable for a wide variety of jewellery styles.

As the September birthstone, sapphire has traditionally been associated with wisdom, sincerity and loyalty. Green sapphires provide a distinctive alternative to traditional blue sapphires while maintaining the strength and versatility for which sapphires are recognised.

## Gemstone Specifications

-   **Gemstone:** Natural Sapphire
-   **Species:** Natural Corundum
-   **Variety:** Green Sapphire
-   **Shape & Cut:** Round
-   **Clarity:** VVS
-   **Weight:** 1.18 Carats
-   **Colour:** Green
-   **Measurements:** 5.90 × 4.00 mm
-   **Treatment:** Heat Treated
-   **Birthstone:** September

## Certification & Authenticity

This sapphire is supplied with a certificate from an authorised gemologist confirming its natural identity and disclosed gemstone characteristics.

**Seller Notes:** A clean gemstone. Minor 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 for:

-   Custom engagement rings
-   Solitaire ring designs
-   Pendants and necklaces
-   Personalised jewellery projects
-   September birthstone jewellery
-   Fine bespoke 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?

Green sapphires are appreciated for their distinctive natural colour, durability and versatility. Their elegant appearance makes them suitable for both contemporary and classic jewellery designs, while each natural gemstone displays its own unique characteristics.

## Explore Related Collections

Browse related collections and educational resources:

-   [Teal, Blue & Green Sapphire Collection](https://www.nashgems.com/collections/blue-green-teal-sapphire)
-   [Natural Sapphire Collection](https://www.nashgems.com/collections)
-   [All Loose Sapphire Gemstones](https://www.nashgems.com/collections/all)
-   [Ready-to-Wear & Custom Sapphire Jewellery](https://www.nashgems.com/collections/sapphire-gemstone-jewelry-rings)
-   [Gemstone Education Articles](https://www.nashgems.com/blogs/gemstone-articles)
-   [Contact Us](https://www.nashgems.com/pages/contact)

## Shipping & Returns

Worldwide shipping is available. Buyers are responsible for any applicable customs duties or import charges. 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 green sapphire?

Yes. This gemstone is a natural green sapphire from the corundum family and is not laboratory created.

### Has this sapphire been treated?

Yes. This gemstone has undergone heat treatment, as disclosed in the specifications.

### 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 durability, round cut and timeless appearance make it suitable for custom engagement ring designs and other fine jewellery applications.

## Details

- **Price:** 585.0 USD
- **Vendor:** NASHGEMS
- **Type:** teal sapphire
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## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 585.00 USD | In stock |

## Images

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- Round green sapphire loose gemstone from NASHGEMS, 1.18 carats, perfect for custom-made rings or jewelry designs.
- Round green sapphire loose gemstone from NASHGEMS, 1.18 carats, ideal for custom jewelry like rings and pendants.
- Round green sapphire loose gemstone, 1.18 carats, teal color, from NASHGEMS, ideal for custom jewelry rings and pendants.
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- Round green sapphire loose gemstone, 1.18 carats, teal color from NASHGEMS for custom-made rings and jewelry designs.
- Green sapphire loose gemstone, round shape, 1.18 carats, from NASHGEMS, suitable for custom-made rings and jewelry designs.
- Round green sapphire loose gemstone from NASHGEMS, 1.18 carats, ideal for custom-made rings and jewelry designs.

## Additional Information

- **Google: Custom Product:** Yes
- **Carat:** 1.18
- **Stone Shape:** Round
- **Treatment:** Heat Treated

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> Source: [NASHGEMS](https://www.nashgems.com/products/natural-green-sapphire-1-18ct-round-cut-loose-gemstone)
> Updated: 2026-07-08