
Sign up to save your podcasts
Or
All gemstones can be graded accurately by using the ICSL gemstone grading system except diamonds. The International standard for grading diamonds is the GIA diamond grading system. For more information on the ICSL grading system go to our website www.gemlab.co.za
All gemstones can be graded accurately by using the ICSL gemstone grading system except diamonds. The International standard for grading diamonds is the GIA diamond grading system. For more information on the ICSL grading system go to our website www.gemlab.co.za