Yes, star sapphires can be very valuable, ranging from modest prices to thousands of dollars per carat, depending on factors like natural origin, deep blue color, translucency, and a sharp, well-defined six-rayed star (asterism) created by rutile inclusions, with the rarest and most prized being transparent blue stones with vibrant stars, making them sought-after for fine jewelry.
Star sapphires have a long and fascinating history of being highly coveted and prized as very special and unique gemstones. Their special feature called asterism lends an added mystical element, and many throughout time have felt a special connection to these stones.
A star sapphire is a kind of sapphire that shows an opaque six-rayed star when exposed to direct light. The unique optical phenomenon is known as asterism; the star is created by light refracting off of strands of rutile present in the gemstone.
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.
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.
Why are Star Sapphires so cheap? Star Sapphires are naturally occurring minerals that have an opaque quality due to the presence of rutile needles. This opacity causes the gemstone to appear cloudy, which results in a lower price.
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.
A gemstone that exhibits this effect is called a star stone or asteria. The best known is star sapphire, but many other minerals can also be asteria, usually due to impurities in the crystal structure.
Star corundum can be red, pink, blue, black, gray, brown, purple, or yellow—practically every color under the sun. The term “star sapphire” encompasses all colors of star corundum except red, which is called star ruby.
Are fake star sapphires completely synthetic or just treated natural stones? Fakes can be either. Some are lab-grown synthetics (e.g., Verneuil, Czochralski sapphires); others are low-grade natural sapphires with artificially induced asterism or surface dye treatments.
Despite receiving a controversial reception, Princess Diana's engagement ring draws from deep royal tradition. The design was inspired by a sapphire and diamond brooch that Prince Albert had gifted to Queen Victoria in 1840, which she famously wore on her wedding day—a nod to the "something blue" tradition.
The best way to clean your sapphire jewelry is with warm soapy water and a soft brush, avoiding soaking the stone. Always avoid harsh detergents, and never clean your jewelry with solvents such as alcohol, acetone or paint thinner.
This celestial effect is caused by fine rutile inclusions within the stone, making each star sapphire a unique masterpiece. Throughout history, star sapphires have been cherished as symbols of protection, wisdom, and spiritual insight.
Rich, deeply saturated cornflower blue sapphires are the most valuable of all the sapphire colors. In second place is the very rare Padparadscha sapphire - a stunning pink-orange sunset stone.
According to Vedic astrology, individuals born under Aries, Cancer, Leo, Scorpio, Sagittarius, and Pisces should generally avoid wearing Sapphire. It is believed that Shani Dev holds animosity towards individuals of these zodiac signs, hence Sapphire does not yield positive outcomes for them.
They have been popular jewels since ancient times as talismans and have seen resurgence in popularity, particularly in the 1920s and 30s during the Art Deco period. Star sapphires were in vogue during the Golden Age of Hollywood, and Lombard was one of several leading celebrities who embraced the trend.
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.
This lab-grown star sapphire cabochon is made with corundum and offers an intense blue color. Each stone has a chemical make-up identical to those found in nature. It performs at the bench just as a natural stone would.
Here's a little secret: some sapphires hold or even increase their value over time. Rare colors, untreated stones, or exceptional cuts can become even more desirable in the years to come.
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.
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.
The presence of a star is one of the most remarkable phenomena encountered in the world of colored gemstones. This optical occurrence is quite rare, being only found in a very small percentage of the sapphires mined around the world. Top grade star sapphires are very popular with collectors.
To preserve the star sapphire's brilliance, gentle care is essential. Avoid harsh chemicals and ultrasonic cleaners, which can damage the stone. Instead, clean your jewelry with warm, soapy water and a soft brush. Store star sapphire pieces separately to prevent scratches from harder gemstones like diamonds.
Star rubies and sapphires, first developed in 1947 in the United States, are made by adding one percent rutile (titanium oxide, TiO2) to the starting powder, forming the boules in the usual manner, and then heat treating them at temperatures between 1,100° C and 1,500° C.