| A | B |
|---|
| 4 C's | evaluation of the quality |
| Cut | facets, and their proportions, on the surface |
| 57 facets | most effective number to optimize light reflection |
| weight of a diamond | carat |
| THE “LARGE ANGLE” EFFECT | flat cut and too large a table |
| THE “NAIL HEAD” EFFECT | the cut of the diamond is too deep |
| shape | outward appearance such as round, emerald |
| Clarity | IF to I3, key measure to overall quality |
| VS1 or VS2 | Very slight inclusion |
| Color | rating scale D to Z |
| metal | 950 platinum or 18K yellow gold |
| SIMPLE SHANK | no accent stones |
| pave | Several small diamonds around the shank |
| mount | Traditionally 4-prong settings |
