Diamond & Gemstone Analysis

Looking to evaluate the quality, authenticity, or gain further insight on a gemstone? Our state-of-the-art equipment ensures the provision of precise and reliable answers to your inquiries.

How do we identify gemstones?

We ensure precise measurements of gemstone hardness for our clients with the non-invasive Presidium Gem Tester II, allowing us to provide accurate results without any risk of damage to your precious stone.

FAQs

Is your gemstone certified?

We recognize GIA (Gemological Institute of America) as the benchmark for Gemstone Certification, ensuring that each gemstone is engraved with an ID number and accompanied by proper documentation.

How do we identify karat size?

At Katy Coin, our cutting-edge electronic tools provide precise measurements down to the millimeter, ensuring accurate determination of the carat weight of your gemstone.