How much is opal worth?
Opal worth ranges from around $10 per carat for common white opal to over $15,000 per carat for top grade black opal from Lightning Ridge, with value driven by opal type, play of color, pattern, body tone, size, and origin. Australian black opal sits at the top of the market, followed by boulder opal, crystal opal, and white opal, while doublets, triplets, and treated Ethiopian opals hold a fraction of the value of solid Australian stones. Red on black, harlequin, and Chinese writing pattern opals command the strongest prices per carat, with provenance from a named Australian field adding significant value at resale. Below is a full guide to how much opal is worth, covering price ranges across every opal type, the factors that drive value, and how to assess what an opal is really worth.
Miners invest significant time and resources in opal mining, anticipating high opal worth. However, market fluctuations often lead to inflated prices, driven by miners’ perceptions of value. Competition among miners further impacts market dynamics, although the availability of high-quality opals for sale remains limited.
Opals are valued according to many different factors. These include brightness, body tone, the density of color, colors, patterns, size, shape, and pattern rarity (e.g., Harlequin). Often, an opal is graded by the seller and priced at a per-carat weight.
Pricing Opals: What Determines Their Worth?
So, How much is opal worth? Opals are not graded as precisely as diamonds because every single Opal is different from diamonds, which are all relatively the same. Opals are worth what someone is willing to pay for them! They have also increased in value over time because discoveries have become scarce. This has happened on many occasions where an opal was bought, for example, for $1,000 20 years ago and sold recently for $50,000. If someone loves the Opal, then it is worth paying the asking price. Gem opal, especially gem black Opal, has such a display of different colors and patterns that no other gemstone can equal its beauty. Therefore, their value increases over time. Excellent Opal with sporadic patterns will never decrease in value unless you have overpaid for it in the initial purchase.
There was a time in 1992, however, when the market witnessed a decrease in the value of Opal when new fields were discovered in Lightning Ridge around the Corcoran area, resulting in an oversupply of mid-grade Opal.
People who own opals ask us daily for a price recommendation. Please know that we do not do appraisals. Pricing an opal for today’s market takes time. To price an opal, look at other opals of similar quality, size, shape, type, pattern, colors, etc., and determine the price per carat. It takes us hours, sometimes even days, to price a gem-quality opal correctly for the market. We also need to review our prices regularly. About a third of our time in our business is spent in pricing and valuing our opals for sale to ensure we are competitive with our prices.
