Loose Gemstones

All future sales will be through our new website at Gemstones Loose Inc.

Loose gemstones are purchased for a variety of reasons. Some people collect gemstones with no intention of setting them in a piece of jewelry. Others buy loose gemstones because they want to set the stones themselves. Still others have a custom jewelry piece in mind and hire a jeweler to create a one of a kind masterpiece built around their center gemstone. Perhaps the best reason to buy gemstones loose is that you can accurately assess the quality of the gemstone. Once a gem is set in a piece of jewelry the task of evaluating the cut, color, and clarity becomes more challenging. Cutting errors, inclusions, and flaws can be hidden from view behind prongs and bezels. The perceived color of the gemstone can be affected by the type of metal used in the jewelry. Even the true carat weight is sometimes just an approximation when you purchase finished jewelry.


We at Loose-gemstones.org believe the gemstone should come first and that is all we sell. The gemstone is usually the most expensive part of the finished piece of jewelry and we feel that the quality of the stone is paramount. Loose gemstones come in four different qualities of cut.

Commercial Cut Gemstones

These loose gems are often cut in the country of origin or in large commercial cutting houses in India or Thailand. The majority of all cut gemstones in the market are of this type. Speed of production and low cost make this process very appealing but often these gemstones are not cut at correct angles to maximize the beauty of the stone.  The polish on this type of cutting is usually 14000 grit diamond or less and the facets do not usually meet at a point. Windowing of gemstones is a problem that can occur when these loose gemstones are cut with angles below the critical angle for the species. The girdle of the gemstone is usually rounded and is often not polished.

Custom Cut Gemstones

These loose gemstones are faceted on precision faceting machines based on computer generated designs that incorporate the best angles for a particular gemstone species.  Facets are generally expected to meet at a point and are polished to a minimum of 50000 grit diamond. Modern oxides are also used while polishing which is even finer than 50K diamond. The gemstone’s girdle is usually faceted and polished the same as any other pavilion or crown facet. Production is slow since many of these loose gemstones are cut by individual hobbyist or professional faceters rather than large cutting houses.

Custom Commercial Cut Gems

This type of commercial cutting is starting to produce loose gemstones very similar to the custom cut gemstones above. China and a few other countries are starting to see a market for accurately cut gemstones and are setting up large scale cutting houses to fill the demand. These loose gemstones are cut per design with correct angles and high quality polish. The facets don’t always meet perfectly but the quality of the cut is very good. Speed of production and low cost make this a very attractive option.

Competition Cut Gemstones

These gemstones are usually cut from man-made rough because they are being judged on the cut rather the type of gemstone. These loose gemstones are expected to have perfect meet points between the facets and will have a minimum 100K diamond polish. The flatness of the facets is also a critical criterion. Production is very low and as such these stones do not reach the general gemstone market often.

We sell loose gemstones from each category depending on the type of material. Most of our rubies, emeralds, and sapphires will have commercial cuts while all other gemstone species will usually have custom cuts or custom commercial cuts.