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Why Diamonds Chip
The 25 ° crown angles and the 37 ° bottom angles create a Small to medium sized chip running partly down the pavilion very acute angle as represented in the green arc. Along but not traveling very far into the stone. 7% to10% loss in with an extremely thin to very thin girdle, this is an accident recutting. waiting to happen.
Chips are also caused by stress in the stone, or by an inclusion close to the surface. An extremely thin or very thin girdle is probably the leading cause, regardless of the crown and pavilion angles. When a portion of the diamond is chipped away, it is similar to the cleaver striking a blow and splitting the diamond. When selling a diamond to a private party, it is important to explain that a diamond does chip, and that it is advisable to obtain appropriate insurance.
In addition, some diamond cutters will not guarantee their work, especially when it comes to inclusions that could potentially cause further damage in the recutting process.
