Satsuma Kiriko is a kind of cut crystal glass first created in Kagoshima during the Edo period. Satsuma Kiriko is made by layering coloured glass over transparent glass and carefully cutting patterns into the outer layer. Master craftsmen use specialized cutting techniques which make the coloured glass appear to melt into the clear glass below. This gradation, which is known as bokashi, is applied to create designs with a unique Japanese aesthetic sense. The elegance and beauty of Satsuma Kiriko are a testament to the immense effort and craftsmanship put into its production.