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SGL Security Seal SGL

SGL offers an advanced sealing system for loose diamonds in which a diamond is sealed in a secure and tamper-proof casing. The SGL Certi-Card Sealing System is the best way to safeguard your diamond against being substituted, chipped, fractured, or otherwise damaged before you have it set into jewellery or while it is not in your possession. Once SGL has issued a Diamond Certificate, on your request the diamond is sealed in the Certi-Card casing with its individual SGL Diamond Certificate number and identifying characteristics clearly visible inside the seal. The seal has a number of security features including electrostatic security bars, pressure-sensitive transparent adhesive and Cryptoprint text which only becomes visible after opening the seal. It is therefore impossible to tamper with the seal.

Get True Value For Your Diamond!

SGL Labs diamond evaluation process is recognized throughout the industry and the world for its absolute precision. Diamonds are examined by four different gemologists, using the most advanced technology available.

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Quality that inspires confidence

The integrity of the SGL grading process is absolute. Our diamond lab applies an uncompromising operating code which it supports by using some of the most new technology and qualified graders.

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Online & Reliability; Data

The grading report is available on our website and is kept on the website for 15 years for data availability and certificate reliability check. Check your report on the SGL website.

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Anonymity and Objectivity

The objectivity of the grading results is guaranteed by means of a double coding system: one set of codes is given to the owner, while the other follows the diamond in the lab. Strict anonymity guarantees strict objectivity.

FAQ

It is essential for each diamond proprietor to know the credentials of their diamond in order to obtain confidence and assurance of the integrity of what they have acquired. An SGL Diamond or Gemstone Certificate is a statement issued by one of our independent gemological laboratories documenting the characteristics of the stone as determined by our experienced diamond graders at the time of evaluation.

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