Minerals & Precious Metals Testing

Minerals & Precious metals Testing Benefiting from the extensive geological and mineralogical expertise of our gemologist, we possess the capability to conduct thorough testing on a diverse range of rocks, minerals, crystals and gem roughs. Our objective is to accurately identify these specimens which can be in their original forms, or as carvings and ornaments, […]

Mounted Jewellery

Mounted Jewellery Testing We test gemstones, jade, diamonds and pearls in their mounted jewelley forms, such as rings, brooches, bangles, bracelets, pendants and necklaces or beaded necklaces. To Verify Your Report, Please Proceed To Ngireports.com Mounted Jewellery Testing The activities include: Identify the gems, perform the tests to determine the enhancement /treatment and country of […]

Organic Gemstones

Pearls and other organic gems testing Organic gemstones are special gems that formed with the help of living organisms. Besides pearls, there are other stunning organic gemstones like amber, precious coral, ammolite and shells. These unique gems highlight the beauty and interesting natural processes that happen in living organisms. Pearls are often referred to as […]

Jade

Jade For thousands of years, good quality jade has been a beloved gem due to its rich history, beauty, toughness, durability and rarity. Jade is mainly classified into two categories: jadeite and nephrite. Jadeite Jade is also known as “Fei Cui” in the trade. “Fei Cui” is the traditional Chinese term for jadeite, which is […]

Gemstones

Gemstones General Information For Lab Testing  NGI, led by Zeng C G, the founder, a highly experienced and qualified gemologist in Singapore Applies his extensive knowledge in geology, mineralogy, gemology and effective use of gemological instruments, specialises in conducting professional testing on a wide variety of gemstones and minerals  Delivers a high standard of assurance […]

Diamond Testing and Grading

Diamond Testing and Grading Diamonds have garnered adoration not only for their inherent qualities such as color, brilliance, clarity, hardness, and rarity but also due to the enduring marketing slogan, “diamonds are forever.”  These precious gemstones are naturally formed under extreme high temperature and pressure deep beneath the Earth’s surface over billions of years, and […]