IIGJ Lab reports signify the authenticity of diamonds and coloured gemstones in a finished jewellery piece without relying only on appearance. IIGJ Lab provide comprehensive reports mounted diamonds and coloured stone jewellery to empower manufacturers, retailers, and discerning buyers.
IIGJ Lab reports are structured to provide a comprehensive view of the entire piece, with precise identification of all mounted stones/diamonds.
Diamond Jewellery Screening
Helps determine whether diamonds are natural, laboratory grown, or simulant. IIGJ Lab test rings, earrings, pendants, necklaces, and other mounted pieces.
Diamond Jewellery Grading
IIGL Lab evaluates quality of mounted diamonds using the 4Cs: Cut, Colour, Clarity, and Carat, even when they are mounted in jewellery. The detailed report helps to build consumer trust.
Diamond and Coloured Stone Jewellery
Every gemstone in a jewellery piece undergoes advanced gemmological verification to confirm authenticity. For multi-stone jewellery, a comprehensive report details each stone’s type and colour. Mounted diamonds are screened to distinguish natural, laboratory grown, and simulants, followed by unbiased colour and clarity grading.
Coloured Stone Jewellery
All gemstones, including polki diamonds, are tested for accurate identification. For multi-stone jewellery, a consolidated report details each stone’s colour, variety name, and any treatments such as glass-filling, dyeing, or coating. For rubies, sapphires, and emeralds, treatment status (heating or fissure filling) is clearly specified, when asked.
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