| About Gemstone Matched Pairs
 Matched pairs are highly sought after in the gemstone world, especially for earrings, but also for rings and pendants. But matched pairs can be difficult to find because a lot of work is required to produce them.
To put together a matched pair requires sorting through hundreds of stones to find good candidates, and then careful cutting to make sure the pieces are well matched. A fine matched pair will be as identical as possible, and that can be a challenging task. Matching the size is not that difficult, since a larger piece can be cut to match the smaller one. But finding two pieces of identical color and clarity is always difficult. Then the gems must also be faceted with the same angles to achieve the same brilliance.
 One trick of the trade is to cut a matched pair from a single piece of rough, sawn in half. But that option is not always available. If you want to cut a matching pair of 1 carat sapphires, for example, you don't want to use an extremely valuable 4 carat rough stone to do it! It is more economical to find two smaller pieces that have a good color match.
Some gemstone varieties are more difficult to match because of subtle color variations. For example, tourmaline is famous for its subtle color zoning and pleochroism. Trying to produce a matched pair of watermelon tourmaline is extremely difficult. Even an apparently 'solid' color tourmaline displays different colors from different angles. That's why you won't find many tourmaline matched pairs.
In general, the price of matched pairs is usually higher on a per carat basis. One reason is rarity -- it's more difficult to find a pair of stones matched for color, clarity and cut. But that's not the only reason. Usually one of the pieces has to be reduced in size to match another stone. So that means the cutter has sacrificed valuable material to create the pair. So the price per carat must be higher to compensate.
Most matched pairs will have a total carat weight of 0.5 to 2.0 carats. Larger sizes are more difficult to match, even in gems like quartz where larger sizes are abundant. Matched pairs in calibrated sizes are even harder to find, since it usually means that the cutter has to reduce the size of both pieces to achieve the desired size. So calibrated matched pairs will be even more expensive.
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