What is the primary focus of fracture filling treatments for gemstones?

The primary focus of fracture filling treatments for gemstones is to make cracks less visible and improve clarity. This technique involves the application of a substance, usually a type of resin or glass, into the fractures of the gemstone. By filling these cracks, the treatment reduces the visual impact of the fractures, resulting in a stone that appears clearer and more attractive. This is especially significant for gemstones that may have inherent inclusions or fractures that would otherwise detract from their overall appearance and desirability.

Enhancing clarity through fracture filling can significantly influence how a gem is perceived by consumers and can also affect its market value, although the aim here is specifically to address visibility of fractures rather than increasing the gemstone's size or fundamentally altering its color.