Diamond

Venus Grading System (VGS®)

Introduced in 1996 through extensive research, the proprietary Venus Grading System® (VGS®) was created to bring clarity and consistency to diamond grading. By expanding the simple 4Cs into precise, meaningful sub-grades, VGS® offers a deeper and more transparent understanding of every diamond. This commitment to accuracy led us to pioneer Single-Piece Packaging and, in 1997, to launch venusjewel.com, redefining how polished diamonds are bought online. Today, most of our customers confidently buy online, supported by a system built on the enduring credibility of VGS®.

  • Enables accurate diamond selection based on individual priorities
  • Rationalises value for fair pricing
  • Uses master-diamond benchmarks for consistent assessment
  • Detailed interpretation through (+) and (–) grading within the 4Cs
  • Eliminates the need for physical inspection, re-grading, or third-party assessment
VGS® is our way of transforming expertise into confidence - so every diamond’s value is clearly understood.
3rd decimal in carat weight

Venus Grading System provides carat weight measurements up to the third decimal place, surpassing the industry standard of two decimal places.

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Sub-dividing clarity grades

For each weaker clarity, the visual difference between the two clarity grades increases. With experience, experts can judge whether a stone, for instance, qualifies as a better SI1 or a weaker SI1.

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