Services
We expertise in Gems Testing and certification.
Add-On Gemstone Certification
We offer Add-On Gemstone Certification services for all gemstones listed on our website. We only suggest and grant certification to laboratories that produce accurate and trustworthy results.
Gemstone laboratories assist in determining if gemstones are natural and, if so, how they have been treated. We’ve compiled a list of recommended Gemstone Labs from around the world.
Colour Gemstone Authenticity Report
Color gems are identified based on their qualities. This report mentions the gemstone’s name as well as its attributes such as weight, shape, and cut. Each Report includes an image of the gemstone mentioned in the report for identification. A unique certification ID will be supplied, which can be validated through our website.
Gemstone Identification Report
Gemstones are identified based on their physical and optical qualities. This report mentions the gemstone’s features such as weight, shape and cut, measurement, and so on. Our trained gemologists inspect each gemstone meticulously using internationally established procedures and tools. Each Report includes an image of the stone referenced in the Report for identification.
Jewellery Authentication Report
This report is intended for jewelry goods studded with diamonds and gemstones. This report includes all of the necessary information on the Jewellery Item for both the supplier and the buyer. Expert gemologists analyze each piece of jewellery under stringent guidelines and using specialized equipment.
Diamond Grading Report
Each diamond is graded based on the four C’s: clarity, cut, color, and carat weight. At Criss Lab, each Diamond is meticulously assessed by an experienced Diamond.This report not only covers the four C’s, but it also tells whether the diamond has been treated or upgraded in any way to reach its current status. Criss Lab uses the well known GIA-Grading system to grade diamonds.
Diamond Report
GemsLaboratory Diamond Reports provide a precise assessment of a diamond’s cut, color, clarity, and carat weight based on strict international standards. Regardless of format, all reports are issued in accordance with high international standards.
Colored Diamonds
The job of identifying natural colors in diamonds is highly hard. GemsLaboratory employs cutting-edge technology to evaluate whether a gemstone is naturally mined, laboratory generated, or simulant, as well as whether its color is natural, processed, artificially treated, or synthetic.
Laboratory Grown Diamond Report
Laboratory Grown diamonds, also known as “man-made,” “created,” or “synthetic” diamonds, are diamonds that are grown in a laboratory rather than natural diamonds, which develop naturally on Earth.
Hearts & Arrows Report
Hearts & Arrows features eight consistent patterns at the top and bottom. In its most basic form, it represents the diamond cutter’s search for absolute precision and beauty in a diamond.