SERVICES
¦  WELCOME  ¦  RINGS  ¦  NECKLACES  ¦ PENDANTS  ¦  EAR-RINGS  ¦  BRACELETS  ¦  CHAINS  ¦
 
Gems Size & Weight                                                  Site Map
( FRANCAIS )
ABOUT US
INFORMATION
CLASSICAL LINE

 

SHANGRILA

 

DYNAMIC

 

DRAWINGS
JEWEL SETTING

 

PROJECTS

 

SITE MAP

 

WELCOME

 

CONTACT US

GEMSTONE DATA
 
 
                                              Table      Star/ Upper main facet
  Upper girdle facet
 
Girdle
 
Lower girdle facet
Lower main facet
                                               Culet  
  When a stone is cut according     
  to good proportions, the light is       If the stone is cut too thick, If the stone is cut too much flat, the
  reflected from one facet to another        part of the light escapes light escapes from it before to be
  and arises by the top.      outside downwards. returned on another facet.
       USUAL PROPORTIONS .     
                                               Designation of diamond's quality.
TW: Top Wesselton
IF:  TW VVS:  TW VS TW SI
Internally flow less  Very Very small incl. Very small incl. Small incl.
Coloured stones
FL NFL LI1 LI2 MI1
Flaw less Near flaw less Lightly included 1 Lightly included 2 Medium included 1
MI2 MI3 VI1 VI2 HI
Medium included 2 Medium included 3 Very included 1 Very included 2 Highly included
PRINCIPAL COLORING ELEMENTS IN THE GEMS.
    Chromium  Ruby, Emerald,  Pyrope garnet, grossularite and uvarovite, Tourmaline.
    Copper  Dioptase, Malachite, Azurite.
    Iron  Sapphire, Aquamarine, Citrine,  Almandin garnet.                   
    Manganese  Morganite, Pink tourmaline, Spessartite garnet.
    Nickel  Chrysoprase.
    Titanium  Blue Sapphire.
    Vanadium  Green beryl, Blue zoļsite , Garnet.
  
Mechanical cutting. Mechanical shaper.
¦  GEMS SIZE & WEIGHT ¦ GEMSTONES ¦ SAPPHIRE ¦ GARNETS ¦ TOURMALINE ¦ CONTACT US ¦
 
©    All of the pictures on this site have been shot by Darbel du Bourg.
 
  Visit our partner site :      All of our jewels are realized in 750 gold (18 carat)    Gems-Diams quality

 ¦ Top ¦ Ring ¦ Necklace ¦ Pendant ¦ Ear rings ¦ Bracelet ¦ Order ¦ Site map

© 1983 - 2015 Darbel du Bourg company All rights reserved.