When most people think of Australia, they think of Kangaroos, Crocodile Dundee, and shrimp on the barbie...maaaaate. They would be forgiven for not thinking of sapphires. These vibrant gemstone beauties quite rightly hold their own in the worldwide sapphire market, and they come with attractive qualities not least of which is ethical mining practices that ensure your sparkle doesn’t come with a side of guilt. So, grab your sunhat and crack a cold stubby, because we’re about to dive into the blue yonder of these gems — where ethics, color and variety converge.

The Australian Sapphire: What Makes It Different

The Australian Sapphire truly stands out from other varieties around the globe, thanks to its remarkable shades and captivating color variations within a single stone. Not only is it more budget-friendly compared to the Sri Lankan and Mozambique options, but it rivals others in terms of size, color, and clarity. What truly elevates these gems above the rest is the peace of mind that comes from knowing they are ethically sourced. 

Ethical Sapphire Jewelry

The demand for ethical gemstones has gained significant attention as consumers become more conscious of the environmental and humanitarian costs associated with many gems. Australia's place in the world as a developed and progressive nation help to ensure public trust and perception around enforcement of their comprehensive labor laws to curb worker exploitation and other human rights violations, this is further ensured by the structure of most gem mining set ups, which tend to be run by self-employed individuals or are family owned operations. These businesses operate with a mining claim with legal obligations to maintain and protect the local environment. 

Here at Gem Sanctum, we have spent the last 15 or so years fostering relationships with individual miners, and family owned sapphire gemstone mining companies, with clear lines establishing the origin of individual gems, sometimes even right down to the town, and the name of the person who cut/polished the stone.

As a result, consumers can enjoy beautiful, ethically sourced sapphire gemstones that also reflect their values. This shift towards sustainability not only supports responsible mining but also fosters a deeper connection between buyers and the artisans who make their cherished pieces.

How valuable are Australian Sapphires?

 In terms of the characteristics relied on for determining a gemstone's value, Australian sapphires are no different to sapphires from elsewhere in the world, with bluer, brighter, and larger stones commanding the highest prices, however a direct comparison is not always possible due to the signature hue of Australian corundum being fairly unique to the continent. It's not's apples and apples unfortunately. 

Still, most buyers will notice that roughly similar stones from Australia compared to overseas varieties will find the Australian Sapphire can be easily 20% through to 40% cheaper, depending on the specific stone's color and size. 

Australian Sapphire Colors

Peacock Blue Sapphires

Aussie Sapphires are almost immediately distinguishable for their color. The color most strongly associated with the Australian sapphire, almost exclusively, is a deep, almost sea blue color, in color-nerd terms, there is just the barest hint of a green undertone, pronouncing it's unique tone, but that green isn't obviously perceptible in the stone (color theory 🤓). This color is often referred to as peacock, but the description is so subjective that the term is unfortunately abused by less than scrupulous sellers across the world. 

Yellow Sapphires

Yellow sapphires in Australia are extremely rare, and collected by gem enthusiasts who are in the know about just how rare this color is. And like the peacock color, the particular shade of yellow is quite unique to Australia too, comparable to the color of the Australian Wattle Flower. It's a cheery warm champagne color, that can deepen to a sunrise yellow but not into orange, and not at all like the electric yellow sometimes found elsewhere in the world.

A rare yellow sapphire we sourced from a miner named Stephen in Rubyvale, Queensland set in a custom setting courtesy of Gem Sanctum

Presence of Color Banding

The next biggest characteristic that Australian corundum is known for is the presence of color banding within a single stone, this is a rare phenomenon that occurs much more frequently in Australian sapphires compared to other varieties. These gems are most prized when cut in a way that centers the 'split' of the two colors, and one side is a bright, golden yellow, with the other being a bright deep 'peacock' blue the stone is usually known for. These stones are often referred to as bi-color or parti-color sapphire. 

Multi-Colored or Parti Sapphires

To add some confusion into the mix, parti-color sapphire also covers stones with 'splotches' of different color, or zones, within the same stone. These splotches occur with all the usual randomness we can expect from nature meaning we can see some absolutely stunning examples, like this gorgeous engagement ring commission we completed, below.

Heat Treatment

Australian sapphires can be enhanced with heat treatment. This process is commonly employed to improve the color on an otherwise dull stone, which when done properly, improves that stone's value and desirability. This is a common process undertaken all over the world, and is acceptable throughout the industry.

While heat-treated sapphires can be very beautiful, it's important to note that unheated stones are considered more valuable. Therefore, when purchasing these gems, always seek out an ethical vendor who will disclose any treatments, as this information can significantly affect the stone's value. Understanding these aspects will help you make informed choices in your gemstone purchasing journey!

History of Australian Sapphire Mining

Sapphire mining in Australia has a rich history dating back over 150 years. The first discoveries occurred in the 1850s near Inverell and along the Cudgegong and Macquarie rivers in New South Wales, spurred by the search for gold. By 1875, significant sapphire deposits were found in Queensland, setting the stage for a thriving sapphire industry. Early mining efforts were largely led by foreign entrepreneurs, especially Russian and German miners, who helped introduce Australian sapphires to European markets. These sapphires gained popularity in Europe, especially through trade connections in Central Queensland. However, after World War I and the Russian Revolution, these links to Europe were severed, and the industry slowed down until the 1960s. Despite this, Australia’s vast potential and mining expertise laid the foundation for the resurgence of the sapphire industry in later years.

The 1960s marked a turning point for the Australian sapphire industry, as global recovery from economic depression and world wars fueled demand for sapphires. Advances in mining technology improved production, and the entry of Thai buyers in the 1970s opened up new markets for sapphires of various qualities. This shift moved away from focusing solely on high-end sapphires for European elites, expanding the market and leading to a drop in prices. While this price decline slowed the industry, countries like Sri Lanka, Thailand, and Myanmar gained dominance in the sapphire trade. 

Australia's Role in the Sapphire Mining Industry Today

Despite this shift, Australia's sapphire industry found new life thanks to small-scale miners, often using machinery in a limited capacity to tap into new sapphire-rich areas. These miners have made operations economically viable where large-scale efforts wouldn't, helping to keep the industry afloat. Moreover, Australia's booming tourism industry has brought more attention to these miners, allowing them to meet the demand from local and international jewelers. While Australia’s role in the global sapphire market may have diminished in comparison to Sri Lanka or Myanmar, the country’s mining infrastructure and vibrant tourism sector continue to support its sapphire industry today.

Famous Australian Sapphires

Australia does lay claim to a famous sapphire, the Black Star of Queensland, however that is not your typical sapphire but a star sapphire, cut in a cabochon shape. There is one notable parti sapphire that is not very well known by many, but is nonetheless almost mythical among sapphire enthusiasts, the stone is uncut, still in it's 'dogtooth' crystalline shape, weighing a massive 83 carats and is 43mm long, with dark 'tiger' stripes which inspired it's bad-ass name, The Tomahawk Tiger Sapphire. 😎

Well, that about wraps it up for Aussie Sapphires, are you a fan?