Terms, Limitations, and Methodology

1. DEFINITIONS:

GRS Gemresearch Swisslab – the Company

• "Gemologist": A qualified professional employed or contracted by the Company to perform physical inspection and operational data collection.

• "Supervising Geoscientist / Underwriter": The European Geologist (EurGeol) who audits the data and signs the report.

• "Audit": The process by which the Supervising Geoscientist verifies, interprets, and takes responsibility for the entire dataset.

2. DETAILED METHODOLOGY:

• Physical Inspection & Data Collection: Every gemstone is physically examined by Gemologists. This examination includes 10-80 times magnification microscopy with fibre optics, visual inspection and color grading with master sets, precise weight determination and dimensions, cut descriptions.  Furthermore, each stone is subjected to a suite of instrumental analyses including, but not limited to, Fourier-Transform Infrared (FTIR) Spectroscopy, UV-Visible Spectrophotometry, and Energy-Dispersive X-ray Fluorescence (EDXRF), and interpreted as being treated and the place of origin opinion is added.

• Chain of Custody & Data Integrity: Each gemstone is assigned a unique barcode. This barcode is activated and scanned at every stage of the testing process. All instrumental data is automatically logged to a secure database, irrevocably linked to that barcode. The entire workflow is locked into a data log that cannot be edited.

• Supervision, Audit, and Final Certification: The Supervising Geoscientist with a professional title (EurGeol) performs a comprehensive audit of the entire dataset generated by the Gemologists (at least 2) and the analytical instruments operators. This audit includes verification of data integrity, internal consistency checks, and professional interpretation. He has set the algorithm of testing and trademarked to the extent possible at GRS Gemresearch Swisslab. The final report represents the geoscientific opinion of the Supervising Geoscientist, based on this audit. The Supervising Geoscientist may also insist on physically inspect the gemstone. The validity of the conclusion is based on the audit of the verified data.

3. LIMITATIONS:

• This report is a Gemstone Data Audit Report. It is a professional opinion based on the data collected and audited at the time of examination.

• The client is informed that the Supervising Geoscientist's role is one of data audit and synthesis, which is a distinct methodology from a traditional gemmological report issued by a signatory who has personally performed the examination. More details on the advantage of the audit in comparison to traditional gemstone testing reports are found on the official terms and limitations website of GRS.