BIS is a sole agency identified by the Government of India to operate the hallmarking scheme under the BIS Act. The scheme has been synchronized with the international criteria on hallmarking.
Jos Alukkas gold ornaments is 100% 916 (22 ct) with BIS Hallmark.

ISO is a body for quality management systems and is administered by accreditation and certification bodies.

IGI, the oldest institute of its kind is one of the leading gemological institutions worldwide.

The DTC sells diamonds that are based on size, shape, quality and color. The diamonds are the real combination of the 4 C's ( Cut, Clarity, Color, Carat)

SGL provides a credit card sized Quality Grading Certificate containing all the essential information in a summary format about the Diamonds, Gemstones, Precious Metal and Setting used in the Jewelry which may strengthen the customers' buying decisions.

The DTC sorts, values and sells approximately 
40% of the world's rough diamonds by value.