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The Pavilion Main Method 5.14
The Pavilion Main Method (5.14)The Pavilion Main Method is another effective way to estimate crown angles without the use of instruments. The elongated kite-shaped “pavilion main” can be viewed through...
The Pavilion Main Method 5.14
The Pavilion Main Method (5.14)The Pavilion Main Method is another effective way to estimate crown angles without the use of instruments. The elongated kite-shaped “pavilion main” can be viewed through...
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Judging Angles 5.13
Judging Angles (5.13)For buying purposes, many dealers rely on their judgment of determining proper specs with only a 10x loupe, cleaning cloth and a pair of tweezers. This takes a...
Judging Angles 5.13
Judging Angles (5.13)For buying purposes, many dealers rely on their judgment of determining proper specs with only a 10x loupe, cleaning cloth and a pair of tweezers. This takes a...
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Proportionscope 5.12
Proportionscope (5.12)A proportionscope, first designed and manufactured by GIA in 1967, is an instrument that casts a silhouetted image of the diamond It allows us to check the proportions of...
Proportionscope 5.12
Proportionscope (5.12)A proportionscope, first designed and manufactured by GIA in 1967, is an instrument that casts a silhouetted image of the diamond It allows us to check the proportions of...