6.45ct Australian teal green colour change to purple grey, round
6.45ct Australian teal green colour change to purple grey, round
6.45ct Australian teal green colour change to purple grey, round
6.45ct Australian teal green colour change to purple grey, round
6.45ct Australian teal green colour change to purple grey, round
6.45ct Australian teal green colour change to purple grey, round
6.45ct Australian teal green colour change to purple grey, round
6.45ct Australian teal green colour change to purple grey, round
6.45ct Australian teal green colour change to purple grey, round
6.45ct Australian teal green colour change to purple grey, round
6.45ct Australian teal green colour change to purple grey, round
6.45ct Australian teal green colour change to purple grey, round
6.45ct Australian teal green colour change to purple grey, round
6.45ct Australian teal green colour change to purple grey, round

6.45ct Australian teal green colour change to purple grey, round

$38,500.00
/
Tax included. Shipping calculated at checkout.
  • Sourced Responsibly

Solid, single-colour teal sapphires are very rare. The unique colour and colour-changing abilities matched with fluorescence point to it being influenced by a high chromium content. In over 20 years of specializing in Australian sapphires we have never come across a larger or higher quality colour-change sapphire. This is an exceptional piece that could be made into a stunning dress ring and has excellent investment potential.

This sapphire is part of our Rare Gemstone Collection. Like all our gemstones it is ethically sourced however, this piece has been carefully chosen by our skilled team to fit a number of criteria that revolve around its beauty and rarity. Due to its unique and rare nature, it is not available loose, it is only available in conjunction with a bespoke engagement ring or another piece of custom jewellery. More information about our custom design and manufacturing can be found in our Bespoke Design Guide.

We are very excited to share this world-class gemstone with you and cant wait to work with you to create an heirloom that you will cherish forever.

Price for the sapphire is $38,500

Item ID: ASR645

Gemstone type: Sapphire
Carat Weight: 6.45ct
Dimensions (L,W,H): 10.60mm x 10.56mm x 7.25mm
Shape: Round Brilliant
Colour: Teal, Purple, Grey
Intensity: Intense
Clarity: SI (Slightly Included)
Treatment: Heat
Origin: Rubyvale Queensland, Australia
Certification: Full Spectra Certification

Sourcing - Ethical
Mined in Queensland Australia
Faceted in Australia
One tree Planted for every gemstone

We remove the worry with free, fully insured, express shipping within Australia. Generally parcels are delivered within 1-4 business days.

More details on shipping and delivery including international can be found here.

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Why Choose a Sapphire

  • Symbolism — Sapphires have long been associated with wisdom, loyalty, and royalty, making them a meaningful choice for life's most significant moments.
  • Exceptional Durability — At 9 on the Mohs hardness scale, sapphires are second only to diamonds in resistance to scratching — built for a lifetime of daily wear.
  • Colour Diversity — Far beyond classic blue, sapphires occur in an extraordinary spectrum: green, yellow, pink, peach, teal, parti, and more. Each colour has its own character and rarity.
  • Australian Provenance — Australia is a leading source of natural sapphires, particularly from the gem fields of Queensland and New South Wales. Buying Australian sapphires supports traceable, ethical sourcing.







Sapphire FAQs

Can a sapphire be used in an engagement ring?
Absolutely. Sapphires are among the most popular alternatives to diamonds for engagement rings, prized for their durability, colour range, and symbolism. Their hardness makes them entirely suitable for daily wear.

Are all sapphires blue?
No. While blue is the most familiar colour, sapphires occur naturally in nearly every colour of the spectrum — green, yellow, pink, peach, teal, parti-coloured, and more. The only exception is red, which is classified as ruby (the same mineral, corundum).

What does "untreated" mean?
An untreated sapphire is one that has not been heated or otherwise enhanced after being mined. The colour and clarity you see is exactly as nature produced it. Untreated stones are rarer and command a premium for their authenticity.

How do I care for a sapphire?
Sapphires are remarkably low-maintenance. Clean with warm water, mild soap, and a soft brush. Avoid harsh chemicals and ultrasonic cleaners if the stone has any significant inclusions. The hardness of sapphire means it resists scratching in everyday wear.

Additional Details

Verified specifications for this gemstone.

Item ID
ASR645
Gemstone Type
Sapphire
Carat Weight
6.45ct
Shape
Round
Colour
Teal green colour change to purple grey
Origin
Australia
Hardness (Mohs)
9

Don't take our word for it

★★★★★

We loved our experience with Utopian Creations. They helped us to choose the perfect ring and we couldn't be happier with how its turned out. Ben was so helpful through the whole process and we recommend them to anyone looking for a beautiful piece of jewellery!

Claire Brigid

SA, Australia

★★★★★

My engagement ring is beyond stunning, I cant wait to create our wedding bands with them.

Corinne Ranga

Vic, Australia

★★★★★

These guys are amazing at what they do. They created my beautiful engagement ring, as well as both of our wedding rings. We appreciate the stories behind all of the gems that they use and the hard work they put into all their creations. They are clearly passionate about what they do and I recommend them very highly.

Gemma Vine

SA, Australia

★★★★★

Kept me updated every step of the way, never got annoyed with me with the extreme amount of email I sent and questions I asked. Jess adores the ring and I could not be happier. Thank you again Ben and Utopian Creations

Benjamin Newall

NSW, Australia

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