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Emerald Buying Guide
Ruby & Sapphire Buying Guide
Jewellery Buying Guide
Pearl Buying Guide

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By Dr Dominic Mok
By Dr Dominic Mok
By Dr Dominic Mok
by Renée Newman
HK$78.00
HK$78.00
HK$128.00
HK$195.00
Gemstone Buying Guide
Diamond Handbook
RUBY & SAPPHIRE • A Gemologist's Guide
The Heat Treatment of Ruby & Sapphire

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by Renée Newman
by Renée Newman
Ruby & Sapphire: A Gemologist's Guide by Richard W. Hughes
by Ted Themelis
HK$195.00
HK$195.00
HK$1,800.00
HK$1,500.00
Gem Reference Book Understanding Value
 

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HK$338.00
 
  
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