Page 107 - Jewellery Review JR211
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CUT                                               DIAM         ND
 Basic Diamond Cuts  切割
                                                                                             GUIDE
 (Brilliant / Step) Cut Difference



 Broadly classified as brilliant cuts and step cuts                      Colour                Clarity
                               Too Deep
                                                                          顏色                    淨度
 A diamond's beauty and brilliance depend on the   minimize weight loss. Rose and briolette cuts are
 cutting of its facets.  A brilliant cut has facets that   traditional cutting styles that do not have crowns or   Ideal
 intersect with the girdle and it reflects a strong,   pavilions.               D
 sparkling brilliance.  A step cut's facets are arranged   DIAMOND ANATOMY                        FL   IF
 in a step-like fashion and its brilliance is less rough   Brilliant cuts and step cuts are styles that have   Diameter  E  Flawless,
                                                                                                  Internally flawless
 diamonds that are transparent and colorless are   succeeded in giving colorless and transparent   Too Shallow
 expensive.  In the world of polishing rounded rough   diamonds more brilliance and dispersion, making   Table  F
 is cut into rounds and oval shapes, while rough   them glitter and sparkle.
 with a straight outline is polished into step cuts to   Crown  Round Brilliant  G                VVS1   VVS2
                                        Girdle
                                                                                                  Very,
                                                                                                  very slightly included
                                        Pavillion
                                                                                H
 Brilliant Cut  Step Cut  Side View
 Faceted cut   Brilliant Cut                             Round                  I                 VS1   VS2
                                                                                                  Very
 with   Crown  A diamond's                                                                        slightly included
 Crown and   Girdle  beauty is   Modified Brilliant                             J
 Pavilion   Step Cut  brought out by
 the interaction
 Pavilion                                                                       K
 between the
 pavilion and crown.                                                                              SI1   SI2
                                                                                L                 Slightly included
 Rose Cut
 Other   Rose Cut Side View  Oval  Marquise/Navetle  Pear/Drop  Heart  Trillion
 Free-Form  Having no pavilion                                                  M
 Faceted Cuts  or crown, the   Step      Mixed
 Briolette Cut                                                                  N                 I1
 triangular facets                                                                                Included
 reflect light.
                                                                                O
                   Emerald   Baguette        Radiant   Princess                 P
 Brilliant Cuts                                                                                   I2
               Other                                                                              Included
 Round  Pear  Marquise  Oval  Heart  Trillion                                   Q

                                                                                R

                                                                                                  I3
                  Rose    Old European                    Old Mine              S-Z               Included
                  (profile)  (profile)  Cushion  Asscher  (profile)
                                                                                                    Carat
 Step Cuts  Other Cuts                                                                              卡拉

 Emerald  Square  Baguette  Tapered Baguette  Rose Cut  Briolette

                 0.01 carat  0.02 carat  0.03 carat  0.05 carat  0.10 carat  0.15 carat  0.20 carat  0.25 carat
                 1.35 mm     1.70 mm     2.00 mm     2.40 mm     3.00 mm     3.40 mm    3.80 mm     4.10 mm




                 0.30 carat  0.40 carat  0.50 carat  0.75 carat  1.00 carat  2.00 carat  3.00 carat  4.00 carat
                 4.40 mm     4.70 mm     5.00 mm     5.8 mm      6.50 mm     8.20 mm    9.50 mm     10.50 mm






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