Opals, October's birthstone, are gemstones that are formed from a solution of silicon dioxide and water. There are many varieties of opals, such as white, crystal, black and semiblack. The patterns on an opal can increase or decrease the value of the piece, so it's important to know what type of opal you have, whether it has a rare pattern and if it's in good condition. Understanding all of this will help you to sell it and make a good profit.
Get your opal appraised by a jeweler. It is difficult for an untrained individual to tell the difference between a high-quality opal and one that is lab created.The quality of an opal is determined by its intensity (its flare or flash in the light), color (red is an indication of high quality) and direction (flashes of color can be noticed from any angle or direction).
Take pictures of your opal at different angles. Use a dark solid base and be sure to use a lot of light when taking photos.
Sell your opals on eBay. Register for an account if you do not already have one. You will then fill out your name, address, phone number and email. Then create a title, very detailed description and photo display for your opal. Choose whether or not you want to sell your item at a fixed price or auction it off. If you decide to auction it off, you can always set a "starting price" and include a "buy it now" price. Choose the length of time you wish to auction it off -- one to 10 days.
List your opal for free on craigslist. This site allows you to create an account, use your own pictures and sell your jewelry for free. Always be very detailed and explain any marks or blemishes on the opal. Make sure that if you sell your item, you never meet the buyer alone.
Sell your opal to a jeweler in your area.
Take your opal to a pawn shop if you need immediate cash and are having problems selling your item. Do not expect to get the amount your opal has been appraised for as they are out to make a profit as well.
With eBay you will pay a small listing fee and a final value fee, which is a percentage of the amount you sold it for (see Resources).
If you do not sell your opal on eBay the first time, you can relist it.