Lab certificates assure the quality of natural gemstones and help to identify 100% natural gemstones.
Drishti Gem Lab assures you of natural gemstones and provides you with an authorised certificate in which a unique ID is given for further and more detailed references. In each certificate, each craftsman's consistent hard work represents authenticity and dependability. The certificate includes the weight, dimensions, origin, cut or shape, and specific gravity. You get the holographic seal for the done deal. Get ahead and only buy natural gemstones for maximum benefits. It can also help with the resale value.
The gemstone's description (natural or laboratory-grown) as well as its shape, cutting style, measurements and origin.
Each report has a unique 10 or 11-digit number, e.g. 2021-078888. This individual document number is critical to substantiate a report’s authenticity.
The date on the report identifies the date when the item was received and processed for examination at one of our gemological laboratories.
The examination result of the tested gemstone such as mineral and/or variety name. Stones of natural formation are identified as ‘Natural’ before the item name (e.g. Natural Ruby). Items produced from a synthetic crystal will bear the term ‘Synthetic’ in front of the name (e.g. Synthetic Ruby). Stones that have undergone rigorous treatment will be marked as ‘Treated’ in front of the identifying name (e.g. Treated Natural Ruby).
A full-colour image was captured at the time of gemstone testing. Colour and size of the actual gemstone.
Describes the weight in carat (ct) and dimensions (length, width, depth) in millimetre (mm) of the tested item. The carat weight is shown including two decimal places.
Describes both the shape (girdle outline) and the cut of the tested item. Shapes can be round, oval, octagonal, fancy, etc. Cut refers to the facet pattern, such as brilliant cut, step cut, polished, step/step, etc.
Describes the spectral hue of the tested coloured gemstone (e.g. red, blue, green, yellowish-green, etc.).
Describes observations noted on the gemstone that could signify possible enhancement (e.g. heat-treatment, clarity enhancement using oils or resins, dyeing etc.).
GIA coloured gemstone identification reports include a geographical origin opinion. A gemstone’s determination of authenticity and country of origin is based on testing the physical and chemical properties of that stone. A conclusion is reached after examining the internal characteristics (e.g., inclusions and growth structures) using standard gemological devices and modern analytical instruments (e.g. ED-XRF, FTIR, UV-Vis, PL, and LIBS spectrometers).
A unique QR (Quick Response) code printed on each gemstone report can be used to verify that report's authenticity (License Agreement applies). Using a smart device with a QR-scanner app, scan the code and verify if the report appears in our database.