Why partner with Fishtro Instruments Analytical Science?

We help our customers in the jewellery, hallmarking, and refining sectors become more profitable and trustworthy through non-destructive materials analysis solutions that enable fast, accurate, and automated purity verification of Gold (Au), Silver (Ag), and precious alloys.

Precious metals analysis is essential, now more than ever, with volatile gold prices, strict karat certification standards, and society’s growing demand for recycled and hallmarked jewellery. Many of the showrooms and assayers we support are fundamental to maintaining fair trade and consumer confidence across India and global markets.

Under increasing regulatory pressure to verify exact karat weight (Au 24K, 22K, 18K) and purity of Sterling Silver (925, 999) while detecting hazardous substances such as nickel (Ni), lead (Pb), and cadmium (Cd) without destroying ornamental objects, quality control testing becomes critical. An efficient non-destructive X-Ray Fluorescence (XRF) process helps to eliminate product rejection, protect valuable ornaments, and ensure 100% fair transactional pricing without chemical assay or fire assay damage.

We’re an established organization consisting of a team of analytical instrumentation professionals with over 2 decades of experience. Through our Korean Indian Collaboration Technology, our KARAT VISION K-Series spectrometers (K2, K3, K4, K5) combine cutting-edge micro-focus X-Ray tubes and high-resolution Silicon Drift (FSDD PRO+) detectors with robust local Make in India manufacturing and direct support across 8 major cities.

We believe non-destructive evaluation, complete element transparency across all gold and silver spectrums, and localized engineering support are key to a sustainable and thriving precious metals industry.