Services     SINGLE STONES            PAIRS                     SETS                CABOCHONS         COLLECTOR'S       DESIGNER'S    
 Site map          WELCOME          ORDER TERMS           MINERALS                RESERVE           CONTACT US          ABOUT US    
Usually ships within 24 hours     SEARCH FORM   HELP   INFO. FR   TRACK ORDERS    GEM GUIDE
Average weight for faceted gems
   Size & Weight
(mm) Oval 
(carats) Sapphire
(carats) Emerald
(carats) Ruby
 OTHER FACETED GEMS !
5x3 0.29 0.20 0.29
6x4 0.59 0.40 0.59  
7x5 1.06 0.66 1.06
8x6 1.65 1.13 1.65
9x7 2.36 1.60 2.36
10x8 3.50 2.40 3.50
11x9 4.90 3.40 4.90
12x10 6.80 4.10 6.80
(mm) Round 
(carats) Sapphire
(carats) Emerald
(carats) Ruby 
Why Shop With GGGems ?
2.0 0.04 0.03 0.04
2.5 0.08 0.06 0.08   12-Days Inspection Period
3.0 0.15 0.10 0.15   Gemological Authenticity
3.5 0.22 0.15 0.22   No Risk Payment
4.0 0.34 0.22 0.34   No Risk Return Policy
4.5 0.45 0.32 0.45   Swiss Owned
5.0 0.66 0.45 0.66   24 Hour E-mail Response
5.5 0.83 0.57 0.83   Secure Insured Delivery
6.0 1.09 0.72 1.09   Customer Commitment
6.5 1.36 0.95 1.36   Qualified Gemologists
7.0 1.64 1.10 1.64   English Support by e-mail
7.5 2.12 1.40 2.12
8.0 2.50 1.75 2.50
(mm) Square 
(carats) Sapphire
(carats) Emerald
(carats) Ruby 
Our location
2x2 0.06 0.04 0.06  
3x3 0.22 0.12 0.22
4x4 0.56 0.28 0.56
5x5 0.80 0.50 0.80
(mm)Octagon 
(carats) Sapphire
(carats) Emerald
(carats) Ruby 
Conversion rate
5x3 0.35 0.25 0.35   
6x4 0.70 0.48 0.70 1 millimeter (mm) =  
7x5 1.30 0.87 1.30 0.0393700787 inch (in)
8x6 2.00 1.35 2.00   
9x7 3.10 2.16 3.10 1 inch (in)  = 
10x8 4.40 3.00 4.40 25.4 millimeters (mm)
11x9 6.18 4.00 6.18
12x10 8.30 5.10 8.30 Inches Calculator
(mm)Marquise
(carats) Sapphire
(carats) Emerald
(carats) Ruby 
4x2 0.12 0.08 0.12
4.5x2.5 0.15 0.10 0.15
5x2.5 0.20 0.12 0.20
5x3 0.24 0.16 0.24
6x3 0.29 0.21 0.29
7x3.5 0.45 0.32 0.45    
8x4 0.75 0.50 0.75
9x4.5 1.00 0.65 1.00
10x5 1.30 0.95 1.30
12x6 2.06 1.50 2.06
                                            
  Faceted colored gems Size & Weight
¦ MADAGASCAR GEM SAFARI ¦ MADAGASCAR SAPPHIRE ¦ PAKISTAN SAFARI ¦
Gemology
Cutting Styles
  Fancy styles
  Characteristics
 Crystalline Systems
Amethyst data
  Corundum Data
  Garnet Data
  Tourmaline Data
     Gem-O-Scope
Posters
Visual Catalog
 
 
Will ship Worldwide
  Green Verdict Image
© 1987 - 2023  gggems.com  All rights reserved.