Skip to content

Cart

Your cart is empty

Natural Teal Blue Green Parti Sapphire 1.65 Ct Radiant Cut Loose Gemstone | No Heat September Birthstone

One-of-a-Kind Natural Sapphire — Available Only Once

✔ Natural Earth-Mined
✔ Certified Gemstone
✔ Engagement Ring Ready
✔ Free Worldwide Shipping
✔ 15-Day Returns
Sale price$990.00 USD

Natural teal blue green parti sapphire weighing 1.65 carats, featuring a radiant cut, teal blue green multicolour zoning, 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 teal blue green parti sapphire displays a distinctive combination of teal blue, green and subtle yellow tones within a single crystal, creating the unique multicolour appearance for which parti sapphires are known. Sold as a loose gemstone, it offers complete flexibility for creating a custom engagement ring, pendant or personalised fine jewellery design.

Quick Summary

  • Natural teal blue green parti sapphire
  • Weight: 1.65 carats
  • Radiant cut loose gemstone
  • VVS clarity
  • Colour: Teal Blue Green with natural parti zoning
  • Treatment: No Heat (Untreated)
  • Birthstone: September
  • Certificate from an authorised gemmologist included

The radiant cut combines brilliant faceting with clean geometry, enhancing the gemstone's natural colour zoning and light performance. 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 birthstone for September, sapphire has traditionally been associated with wisdom, loyalty and sincerity. Parti sapphires are appreciated for their naturally occurring blend of colours, giving each gemstone an individual appearance that cannot be exactly replicated.

Gemstone Specifications

  • Identification: Natural Sapphire
  • Species: Natural Corundum
  • Variety: Teal Blue Green Parti Sapphire
  • Shape & Cut: Radiant Cut
  • Clarity: VVS
  • Weight: 1.65 Carats
  • Colour: Teal Blue Green
  • Measurements: 6.70 × 6.00 × 4.30 mm
  • Treatment: No Heat (Untreated)
  • Birthstone: September

Certification & Authenticity

This sapphire includes a certificate from an authorised gemmologist confirming its natural origin and disclosed gemstone characteristics.

Seller Notes: A clean gemstone with a fine needle inclusion visible only under magnification. This natural internal characteristic is consistent with earth-mined sapphire formation and is not visible to the unaided eye.

Jewellery Applications

This listing is for a loose gemstone only and does not include a finished jewellery setting.

Suitable applications include:

  • Custom engagement rings
  • Radiant cut solitaire rings
  • Halo ring designs
  • 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 parti sapphires display multiple colours within a single crystal due to their natural formation. The combination of teal blue and green tones gives each gemstone its own distinctive appearance, making parti sapphires a popular choice for buyers seeking an alternative to traditional blue sapphires while retaining the durability and versatility of natural sapphire.

Explore Related Collections

Browse related collections and educational resources:

Shipping & Returns

Worldwide shipping is available with tracking and insurance included. Delivery times may vary depending on destination. 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 teal blue green parti sapphire and is not laboratory created or synthetic.

Has this sapphire received heat treatment?

No. This gemstone is untreated (no heat), as disclosed in the specifications and accompanying gemmologist certificate.

Is this sold as a finished engagement ring?

No. This listing is for a loose gemstone only. Custom jewellery settings are available separately.

Is a 1.65 carat radiant cut sapphire suitable for an engagement ring?

Yes. Its size, durability and radiant cut make it well suited for a custom engagement ring or other bespoke jewellery designs.

Will the gemstone appear different under different lighting?

Yes. Natural parti sapphires may display subtle colour variation under daylight, indoor lighting and studio lighting due to their natural multicolour zoning.

Natural teal sapphire loose gemstone, radiant cut, 1.65 Ct, no heat, from NASHGEMS, ideal for engagement rings.
Natural Teal Blue Green Parti Sapphire 1.65 Ct Radiant Cut Loose Gemstone | No Heat September Birthstone Sale price$990.00 USD

💎 Not Sure Which Sapphire To Choose?

Get free expert guidance before you buy.
We can help you choose the ideal gemstone based on:

✔ Color preference
✔ Budget
✔ Ring design
✔ Natural vs heated sapphires
✔ Engagement ring suitability

📩 Get Free Sapphire Consultation


WHAT IS A MERMAID SAPPHIRE?

 

  • A mermaid sapphire is a descriptive term used for a sapphire displaying ocean-inspired colours, often including beautiful combinations of blue, green, aqua, and teal.

    Mermaid sapphire is not a separate mineral variety of sapphire. Instead, the term describes the distinctive appearance of sapphires whose colours can evoke tropical waters, ocean depths, seafoam, and the changing shades of the sea.

WHAT COLOURS CAN A MERMAID SAPPHIRE HAVE?

 

  • Mermaid sapphires can display a beautiful range of ocean-inspired colours. Depending on the individual gemstone, these may include aqua, blue-green, teal, sea-green, turquoise-inspired tones, and deeper ocean-blue shades.

    Some gemstones display a soft and blended appearance, while others show stronger contrasts between blue and green. The exact appearance depends on the sapphire's natural colour distribution, cut, and the lighting in which it is viewed.

WHY IS IT CALLED A MERMAID SAPPHIRE?

 

  • The name mermaid sapphire is inspired by colours commonly associated with the sea. The combination of blue, green, aqua, and teal can create an appearance reminiscent of tropical waters, seafoam, and ocean landscapes.

    The term is descriptive rather than a scientific gemological classification. Different sapphires can therefore be described as mermaid sapphires based on their individual colour combinations and overall visual appearance.

ARE MERMAID SAPPHIRES NATURAL?

 

  • A natural mermaid sapphire is a natural sapphire selected or described for its distinctive ocean-inspired colour combination. Blue, green, and teal tones can occur naturally in sapphires and may be distributed differently from one gemstone to another.

    When purchasing a sapphire, it is important to review the individual product description and available certification information to understand the gemstone's origin, treatment status, and other characteristics.

WHAT IS THE DIFFERENCE BETWEEN A MERMAID SAPPHIRE AND A TEAL SAPPHIRE?

 

  • A teal sapphire generally describes a sapphire with an overall blend of blue and green that creates a recognisable teal appearance.

    A mermaid sapphire is a broader descriptive term focused on an ocean-inspired colour palette. It may include teal, aqua, blue-green, sea-green, and other colours associated with the sea. Some gemstones may fit both descriptions.

WHAT IS THE DIFFERENCE BETWEEN A MERMAID SAPPHIRE AND A PEACOCK SAPPHIRE?

 

  • A mermaid sapphire is generally associated with softer or ocean-inspired combinations of blue, aqua, green, and teal.

    A peacock sapphire is generally associated with richer and more dramatic combinations of blue, green, and teal inspired by peacock feathers. The two descriptive terms can overlap because individual sapphires may display similar colours.

ARE MERMAID SAPPHIRES GOOD FOR ENGAGEMENT RINGS?

 

  • Yes. Mermaid sapphires can make a beautiful choice for engagement rings. Sapphire has a hardness of 9 on the Mohs scale, making it one of the most durable gemstones commonly used in fine jewellery.

    The distinctive blue-green and ocean-inspired colours also make a mermaid sapphire engagement ring an appealing alternative for someone looking for a gemstone with individuality and character.

WHY ARE MERMAID SAPPHIRES POPULAR FOR ENGAGEMENT RINGS?

 

  • Ocean-Inspired Colours: Mermaid sapphires can display refreshing combinations of blue, green, aqua, and teal.

    Unique Appearance: Natural variations in colour mean that every sapphire has its own individual character and appearance.

    Durable & Long-Lasting: With a hardness of 9 on the Mohs scale, sapphire is suitable for engagement rings and jewellery designed for regular wear when properly set and cared for.

    Personal Alternative: A mermaid sapphire engagement ring offers a colourful and distinctive alternative to traditional diamond or single-colour sapphire designs.

HOW DO I CHOOSE THE BEST MERMAID SAPPHIRE?

 

  • The best mermaid sapphire depends on the colours that appeal most to you. Some buyers prefer bright aqua and sea-green tones, while others are drawn to deeper teal or blue-green sapphires with greater depth and intensity.

    When selecting a gemstone, consider its colour balance, saturation, brightness, cut, clarity, size, shape, treatment status, and how it will work within your intended jewellery design.

DOES THE CUT OF A MERMAID SAPPHIRE AFFECT ITS APPEARANCE?

 

  • Yes. The cut of a mermaid sapphire can influence how its natural colours are displayed. The arrangement of facets and orientation of the gemstone can affect the way blue, green, aqua, and teal tones are seen from above.

    Different shapes and cutting styles may emphasise different aspects of the gemstone's colour. Photographs and videos can therefore be particularly useful when choosing a sapphire online.

CAN MERMAID SAPPHIRES LOOK DIFFERENT UNDER DIFFERENT LIGHTING?

 

  • Yes. Like many coloured gemstones, mermaid sapphires can appear somewhat different under natural daylight, indoor lighting, and other lighting conditions.

    Lighting and viewing angle can influence how blue, green, aqua, and teal colours are perceived. This does not necessarily mean that the gemstone is a colour-change sapphire.

WHAT METALS PAIR WELL WITH MERMAID SAPPHIRES?

 

  • Mermaid sapphires can pair beautifully with several precious metals, depending on the individual gemstone's colour combination.

    White gold and platinum can emphasise cool blue and aqua tones. Yellow gold can create a warm contrast with green and teal colours, while rose gold can produce a distinctive contrast with certain blue-green sapphires.

WHAT JEWELLERY CAN BE MADE WITH A MERMAID SAPPHIRE?

 

  • Loose mermaid sapphires can be used for a wide range of custom jewellery designs, including engagement rings, pendants, earrings, bracelets, and bespoke jewellery.

    The individual ocean-inspired colour combination of each gemstone can make it an especially distinctive centrepiece for a one-of-a-kind jewellery design.

ARE MERMAID SAPPHIRES RARE?

 

  • The availability of sapphires described as mermaid sapphires can vary depending on the particular colour combination, size, clarity, origin, and overall quality of the gemstone.

    Because mermaid sapphire is a descriptive term rather than a separate gemological variety, rarity can vary significantly. Particularly attractive combinations of aqua, blue, green, and teal may be more difficult to find.

ARE MERMAID SAPPHIRES HEATED OR UNHEATED?

 

  • Mermaid sapphires may be offered as either heated or unheated, depending on the individual gemstone. Treatment information should always be reviewed before making a purchase.

    Unheated sapphires have not undergone heat treatment, while heated sapphires have been subjected to controlled heating processes. Treatment status can influence rarity, price, and buyer preference.

ARE MERMAID SAPPHIRES CERTIFIED?

 

  • Certification availability depends on the individual gemstone. A gemological laboratory certificate can provide information about a sapphire's identity and may include details relating to natural origin and treatment status.

    Reviewing the available certification and gemstone information can help buyers make a more informed purchasing decision.

HOW DO I CARE FOR A MERMAID SAPPHIRE?

 

  • Mermaid sapphires are durable gemstones, but all fine jewellery should be cared for properly. Cleaning with warm water, mild soap, and a soft brush is generally suitable for most sapphire jewellery.

    The safest cleaning method may depend on the gemstone's treatment, jewellery setting, and surrounding materials. Avoid unnecessary impacts and have frequently worn jewellery settings inspected periodically.

WHY CHOOSE A MERMAID SAPPHIRE FROM NASH GEMS?

 

  • At Nash Gems, we offer a selection of natural loose sapphires featuring distinctive ocean-inspired combinations of blue, green, aqua, and teal. Every gemstone has its own individual colour, pattern, and character.

    Detailed product information, photographs, videos, and gemstone specifications can help you select a sapphire for an engagement ring, custom jewellery project, gemstone collection, or other special purpose.