7013.91 - Of lead crystal:

This HTS category, 7013.91, specifically covers glassware designed for table, kitchen, toilet, office, indoor decoration, or similar purposes, which is not specifically classified under heading 7010 or 7018. The defining characteristic of this subcategory is that the glassware must be made of **lead crystal**. Lead crystal is a type of glass that contains a significant percentage of lead oxide, contributing to its brilliance, clarity, and weight. Items falling within this classification are typically decorative or functional pieces intended for use in households or professional settings.

Within the broader classification of "Other glassware" (7013.9), this category is distinguished from its sibling, 7013.99 ("Other"), by the mandatory inclusion of lead crystal as the primary material. While 7013.99 encompasses glassware made from other types of glass for similar purposes, 7013.91 is exclusively for lead crystal items. This distinction is crucial for accurate tariff assessment, as lead crystal often carries different duty rates.

To further refine classification, the subcategories under 7013.91 are based on the unit value of the individual articles. These subdivisions – "Valued not over $1 each," "Valued over $1 but not over $3 each," "Valued over $3 but not over $5 each," and "Valued over $5 each" – allow customs authorities to apply specific duty rates that are often correlated with the perceived quality and market price of lead crystal glassware. This tiered valuation system ensures that the tariff treatment reflects the economic characteristics of the imported goods.