Color: Pure Zari is usually in a gold or silver color. It is easy to identify by its color. Feel: Pure Zari is soft, smooth, and has a beautiful shine that reflects light, but isn't gaudy. It will also change into different tones under different lights. Tested Zari is stiffer to the touch and won't bend and flow like pure Zari. Quantity and Quality: The percentage of silver and gold content in Zari increases the value of the item. Older sarees tend to have more percentage of silver and gold as they were cheaper in the early days. The quality of the Zari and the quantity of Zari used also affects the value. Certification: You can also check for certification from a trusted organization to verify the authenticity of the Zari.