Diamond testing considered a way to prove the true value of diamonds. This contributes to the products having accurate value and not being counterfeited.

Diamond testing


GIA (Gemological Institute of America) - The Gemological Institute of America, founded in 1931, is a non-profit organization that trains and evaluates diamonds, colored stones, pearls and jewelry, leading in the world.

GIA has built a diamond and gemstone inspection system based on 4C standards including 4 factors that determine the quality and value of a diamond: weight (Carat), color (Color). , Clarity and Cut. GIA's 4C standard testing is the most fair, rigorous, famous and popular testing in the world diamond and gemstone market.

  • Diamond Plate
  • Diamond jewelry

GIA-certified diamonds are a certificate of diamond quality that is circulated and valued worldwide. GIA is considered an international accreditation certificate with high objectivity and integrity. Because GIA does not belong to or influence any organization or individual in the world.

  • GIV Inspection Certificate

GIV is considered a mandatory evaluation standard for diamonds circulating in the Vietnamese market. Only when having this confirmation will GIV diamonds be allowed to trade and sell to customers. However, not everyone knows and understands GIV clearly. So what is a GIV certificate and what are the steps to carry out the inspection?

GIV is known as the abbreviation of Vietnam Gem, Gold and Jewelry Institute. This is a specialized facility responsible for the preparation, appraisal and certification of diamonds, gemstones, gold and silver on the market. GIV helps ensure the quality and value of jewelry products when they reach customers.

SEE MORE : Natural colored diamonds

GIV diamond testing is a quality certification for diamond samples performed by the GIV Institute. All diamonds circulating in the Vietnamese market must pass this certification.

After going through the inspection process, the diamond will be awarded a GIV certificate. This is the basis for diamonds to express and authenticate their true value.

The appearance of GIA and GIA is the foundation for certifying and testing international diamond standards. This is necessary to help the market be transparent and products sold at a price consistent with their true value.

Diamond inspection certificate

  • GIA paper

GIA paper is a certificate of authenticity, providing a complete and scientific description of the texture, shape, lines, color, cut, weight and proportion of each diamond. The inspection certificate also contains information about the methods used to process the diamond. This is considered the standard to quantify the origin and value of each diamond on the market.

Considering the influence factor, GIA paper has global value and is chosen by many organizations and shopping centers as a travel document.

There are two types of GIA certificates: Diamond Grading Report (Diamond Grading Report) used to evaluate diamonds over 1 carat and diamond profile (Diamond Dossier) used to evaluate diamonds under 1 carat. .

  • GIV paper

The GIV certificate is a diamond certification that has undergone the GIV inspection process. On this sheet of paper, all parameters related to the diamond sample are recorded. Thanks to the GIV diamond certificate, customers can know more accurate information about diamonds.

GIV Diamond is a diamond quality certification according to the GIV Vietnam Institute. This certification is applicable to most diamond products sold on the market. GIV brings customers the most reliable and prestigious diamond products.

  • How to read GIV inspection certificate?

After inspection, the necessary information will be recorded on GIV paper. If it is a natural gemstone, the product information will be clearly written on the paper and the notes will not include any other information.

If the diamond has been processed, the inspection paper will clearly state with a note what the treatment method is. Besides, there is attached information about the properties of the diamond for users to know.

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