Treatment processes are used to enhance the colour, clarity, durability, and appearance of gemstones, ensuring their saleability in a competitive market. While modern treatment methods guarantee the production of more attractive gems, their advancement ensures the challenging nature of treatment detection. Treatments are sometimes undertaken to deceive and defraud consumers. Depending on the treatment process, treated gems may not be durable in routine situations—such as normal jewellery wear and cleaning—and may be even more vulnerable to more extreme procedures such as heating during jewellery repairs.