Natural blue green yellow bi-color sapphire weighing 0.57 carats, featuring an emerald cut, VVS clarity and untreated (no heat) status. Offered as a loose gemstone for custom engagement rings, pendants and bespoke jewellery designs, complete with certification from an authorised gemmologist.
This natural bi-color sapphire displays a distinctive blend of blue, green and yellow within a single gemstone, creating a unique colour combination admired by collectors and jewellery enthusiasts. Sold as a loose gemstone, it provides complete flexibility for creating a custom engagement ring, pendant or personalised jewellery design.
Quick Summary
- Natural blue green yellow bi-color sapphire
- Weight: 0.57 carats
- Emerald cut loose gemstone
- Clarity: VVS
- Colour: Blue Green Yellow
- Treatment: Untreated (No Heat)
- Birthstone: September
- Authorised gemmologist certificate included
The emerald cut enhances the gemstone's natural colour zoning with elegant step-cut reflections and clean symmetry. 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.
As the September birthstone, sapphire has traditionally been associated with wisdom, loyalty and sincerity. Bi-color sapphires are appreciated for their naturally occurring colour combinations, making every gemstone visually distinctive.
Gemstone Specifications
- Identification: Natural Sapphire
- Species: Natural Corundum
- Variety: Blue Green Yellow Bi-Color Sapphire
- Shape & Cut: Emerald Cut
- Clarity: VVS
- Weight: 0.57 Carat
- Colour: Blue Green Yellow
- Measurements: 4.30 × 4.70 × 2.70 mm
- Treatment: Untreated (No Heat)
- Birthstone: September
Certification & Authenticity
This sapphire includes a certificate issued by an authorised gemmologist confirming its natural origin and gemstone characteristics.
Seller Notes: A clean gemstone. Natural internal characteristics may be visible under magnification and are consistent with earth-mined sapphires.
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
- Halo ring settings
- Pendants and necklaces
- Bespoke fine jewellery
- September birthstone jewellery
- Gemstone collections
Custom jewellery services are available in yellow gold, white gold, rose gold, silver and platinum with optional diamond accents.
Why Choose This Gemstone?
Natural bi-color sapphires display multiple colours within a single crystal, making each gemstone unique. Their durability, natural beauty and distinctive appearance make them a popular choice for custom jewellery and collectors seeking something different from a traditional single-colour sapphire.
Explore Related Collections
- Blue Green & Teal Sapphire Collection
- All Loose Sapphire Gemstones
- Gemstone Education Articles
- Custom & Ready-to-Wear Sapphire Jewellery
Shipping & Returns
Worldwide shipping is available with tracking and insurance included. 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 bi-color sapphire?
Yes. This gemstone is a natural earth-mined blue green yellow bi-color sapphire and is not synthetic or laboratory created.
Has this sapphire received heat treatment?
No. This gemstone is untreated (no heat), as disclosed in the specifications and gemmologist certificate.
Is this supplied 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 and emerald cut make it suitable for custom engagement ring designs when professionally set.
Will the gemstone appear different under various lighting conditions?
Yes. Natural bi-color sapphires may display subtle colour variation under daylight, indoor lighting and studio lighting due to their natural colour zoning.








