Known for its ‘milky’ tones and light appearance, Australian white opal is found in South Australian towns including Coober Pedy, Andamooka and Mintibie. These opals form within seams of white sandstone, giving them their distinct pale colour.Although distinguished by lighter tones and minimal colouring, white opals can also display an array of colours; a spectacle of bright reds, blues and greens.
White opals have gained popularity in recent years for their versatility, and make stunning centrepieces in gold and silver jewellery.
White opals with noticeable play of color range from $10.00 to $500.00 per carat. Dark opals range from N5 to N6 on the chart, and are more rare. The value of dark opals ranges from $30.00 to $4000.00 per carat.
White Opal is the birthstone for people born in October. It's also the astrological gemstone for those born under the sign of Libra. This stone has been associated with love, purity, goodness, and nurturing for thousands of years.
The most expensive opal is black opal. It can be valued over $15,000 a carat. Boulder opals also have a dark body tone. White opals have a light body tone and are generally the least valuable of all opals.
White opal has a deep calming effect and can be used to align the chakras and balance male/female energies. It helps stimulate one's psychic abilities and encourages one to use them with integrity.
Most natural opals have a curved or bumpy area on the back, which is caused by nature. A synthetic opal will be flat and perfectly smooth, because it has been crafted to match nature's irregularities. If you are buying a stone that is set in jewelry, make sure you can see the back.
Opals are a rare gemstone with a wide range of prices. The most prized opals have a black or dark blue background and show their play of color most vividly. They are also very expensive.