Education

Deep Pavilions 5.19

Deep Pavilions (5.19)Even without the Table Reflection Method, very deep pavilions are easily spotted from a distance. Deep pavilions are noticeably dark due to loss of light and a very...

General Rules for Pavilion Depth Estimation 5.18

General Rules for Pavilion Depth Estimation (5.18)Under 41%: Difficult to distinguish and small. Watch for a fish-eye. (Fish-eyes will be discussed in detail later in this section.41-42%: The reflection will...

Table Reflection Method 5.17

Table Reflection Method (5.17)The Table Reflection Method furnishes a fast and relatively accurate estimate of pavilion depth. In the diamonds that you get the chance to examine, you will see...

The Pavilion Depth 5.16

The Pavilion Depth (5.16)The pavilion depth is the measurement between the top edge of the pavilion (where the lower edge of the girdle ends) and the culet. Some might confuse...

Section 1 The Beginning Stages of the Diamond T...

Section 1   The Beginning Stages of the Diamond TradeEarly Diamond History  The Early Years of De Beers Early Diamond Marketing Famous Mines

Likeliness of Breakage 5.30

Likeliness of Breakage (5.30)Suppose we have a diamond that is extremely fish-eyed and has a Very Thin to Extremely Thin girdle. The likeliness of this stone chipping is very high....