A star sapphire is also known by the name asteriated sapphire. In the gem trade, they are sometimes called "stars on earth" stones or "six-ray stones".
Beyond formal variants, Sapphire boasts numerous affectionate nicknames that showcase its versatility. The most common diminutives include Saph, Safi, and Phire, which preserve the name's distinctive sound while offering everyday informality. Some families opt for the playful Sapphy or the endearing Firefly.
A star sapphire is a variety of sapphire which exhibits a unique reflection, giving the impression of a star trapped within the stone.
Star Sapphire is a sapphire with a Star seen on its surface. It is not a gemstone in the form or shape of a star. Rather, in this unique gemstone, you will see the shape of the star on the surface of the stone. It is a unique and natural phenomenon - a wonder of nature.
Other price-determining factors are the color and clarity of the gemstone. In more recent trends, the more transparent the stone is, the more valuable it will be. The rarest kind of star sapphires has a transparent blue body and a vibrant star in them. This gemstone can fetch tens of thousands of dollars.
Ideally, the star in a star sapphire should be perfectly centered when viewed from directly above, with each ray of equal length. The rays should be bright, sharp, and clearly defined–not blurry or fuzzy–and they should reach from the crown of the cabochon to the base without interruption.
Star sapphires form in every color but red, which is star ruby. The rarest colors are yellow, orange, or green. The most common are black, pink, or blue star sapphires.
Star Sapphire Sources
There are many star sapphire deposits around the world, in locations such as Africa and Brazil, but the most important deposits today are in Australia, Myanmar, Sri Lanka and Thailand.
A star sapphire is a variety of the mineral corundum that exhibits a star-like optical effect on its surface. This mesmerising phenomenon, known as asterism, sets star sapphires apart from their faceted counterparts, making them highly prized in jewellery and gem collections.
Pinkish-orange sapphires called padparadscha (from the Sri Lankan word for “lotus flower”) can draw higher prices than some blue sapphires. The name “sapphire” comes from the Latin sapphirus and Greek sappheiros, meaning “blue stone,” though those words may have originally referred to lapis lazuli.
The rarest sapphire color is Padparadscha, a unique and highly prized blend of pink and orange, named after the Sinhalese word for lotus blossom, resembling a sunset or salmon hue. While blue sapphires are most famous, the Padparadscha's distinctive, delicate mix of pink and orange makes it exceptionally rare and valuable, often commanding very high prices.
Pretty girl names often blend classic elegance with modern softness, featuring popular choices like Olivia, Amelia, Charlotte, Sophia, and Ava, alongside romantic and whimsical options such as Aurora, Isla, Willow, Luna, and Aria, with many finding beauty in vintage revivals like Eloise, Violet, and Florence.
The Star of India is 563.35 carats and is the world's largest gem-quality blue star sapphire. According to the American Museum of Natural History, the Star of India is some two billion years old and is one of the world's most well-known precious objects.
Star sapphires are generally cut en cabochon, with a flat bottom and a rounded, polished dome, to see the asterism at its best. The rarity and value of star sapphires are primarily determined by the clarity and sharpness of the star, as well as the stone's colour, size, and overall quality.
Wearing a star sapphire was thought to help overcome hardships and attract good fortune. In Buddhism, the stone was considered a meditation aid, believed to provide inner clarity and facilitate spiritual enlightenment. Tibetan monks sometimes used it as a focus point in their contemplative practices.
The term “star sapphire” encompasses all colors of star corundum except red, which is called star ruby. Naturally, some colors of star corundum are valued more highly than others. In general, the most prized colors are the same as the colors most valued in non-phenomenal corundum: red and blue.
Star sapphire, a type of sapphire gemstone that exhibits a star-like reflection of light (an asterism)
Star sapphires can occur in any color, but the most common colors are blue, black and pink. Since red corundum is referred to as ruby rather than sapphire, a red star would be be called a star ruby.
The rarest Australian sapphires are often unique parti-sapphires, known for natural color zoning like the Pharaoh's Eye (gold/blue "eye") or striking combinations of blue, green, yellow, or even pink/purple hues, with no two stones identical, making them highly prized for their unique patterns and individual beauty, though some specific named finds like the Stonebridge Green are legendary finds in their own right.
How can you tell if your star sapphire is real? To do this, hold your gemstone under a flashlight and examine its star effect. If it looks too perfect, it's probably a fake.
Gorgeous. You can tell real star sapphires because the star will stay oriented to the light when you tilt the stone. Synthetic ones the star is stationary and will turn with the stone.
The star sapphire is the birthstone for the month of September and is one of the zodiac signs for Taurus. Sapphire gets its name from the Latin word 'saphirus' and the Greek word 'sapheiros' which both mean blue.
Only sapphires that contains an activator mineral like chromium (pink sapphires and rubies) or titanium (green, blue, and purple sapphires) are able to fluoresce.
Check for Flaws and Inclusions
Expect to find feather-like inclusions and silk rutile throughout the stone. Color zoning of various strengths may be present, as are typical fingerprint inclusions. While synthetic sapphires are as hard as real sapphires, imitation look-alikes are quite softer.