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Handbook of Gemmology 5th Edition Print & Digital Versions

Last post by GlobalTraveller007 « Mon Mar 17, 2025 1:43 pm
Replies: 2
by GlobalTraveller007 » Thu Mar 06, 2025 2:06 pm

2 Replies

6941 Views

Last post by GlobalTraveller007
Mon Mar 17, 2025 1:43 pm
The second of my gemstones that I’m stuck on identifying

Last post by path914 « Wed Feb 26, 2025 5:37 pm
Replies: 1
by Azard_faza » Tue Dec 10, 2024 6:13 am

1 Replies

5818 Views

Last post by path914
Wed Feb 26, 2025 5:37 pm
Introduction

Last post by Barbra Voltaire, FGG « Wed Jan 08, 2025 7:27 pm
Replies: 1
by bulkgemstonesindia » Fri Dec 27, 2024 2:13 am

1 Replies

4379 Views

Last post by Barbra Voltaire, FGG
Wed Jan 08, 2025 7:27 pm
Good vs Bad cutting

Last post by danielle « Wed Dec 25, 2024 1:29 pm
Replies: 2
by Azard_faza » Mon Dec 02, 2024 11:58 pm

2 Replies

3506 Views

Last post by danielle
Wed Dec 25, 2024 1:29 pm
Please can someone help me identify my gemstones?

Last post by Barbra Voltaire, FGG « Wed Nov 13, 2024 1:20 pm
Replies: 3
by Barbra Voltaire, FGG » Sun Nov 10, 2024 1:16 pm

3 Replies

5305 Views

Last post by Barbra Voltaire, FGG
Wed Nov 13, 2024 1:20 pm
Cutting Oregon Sunstones: A Step-by-Step Guide

Last post by Azard_faza « Thu Nov 07, 2024 5:10 am

by Azard_faza » Thu Nov 07, 2024 5:10 am

0 Replies

5192 Views

Last post by Azard_faza
Thu Nov 07, 2024 5:10 am
Collection of Hauyne Hauynite Mending Area

Last post by SteveM « Thu Nov 07, 2024 3:51 am
Replies: 2
by SteveM » Thu Oct 31, 2024 4:47 pm

2 Replies

5175 Views

Last post by SteveM
Thu Nov 07, 2024 3:51 am
Alan Hodginkson passing

Last post by Barbra Voltaire, FGG « Fri Oct 18, 2024 12:46 pm
Replies: 4
by Debbie K » Wed Oct 16, 2024 6:11 pm

4 Replies

5782 Views

Last post by Barbra Voltaire, FGG
Fri Oct 18, 2024 12:46 pm
Pearl Testing in UK

Last post by LucasMount « Tue Sep 24, 2024 11:39 am
Replies: 5
by mrb » Sat Feb 10, 2024 4:17 am

5 Replies

22570 Views

Last post by LucasMount
Tue Sep 24, 2024 11:39 am
Discussion

Last post by Tim Julius « Fri Aug 23, 2024 7:56 am
Replies: 4
by navneetagarwal » Mon Jul 27, 2020 6:49 am

4 Replies

44420 Views

Last post by Tim Julius
Fri Aug 23, 2024 7:56 am
Spectrometry

Last post by eflachbart « Sat Feb 11, 2023 5:30 am
Replies: 10
by eflachbart » Mon Jan 02, 2023 2:33 am

10 Replies

31406 Views

Last post by eflachbart
Sat Feb 11, 2023 5:30 am
Hemicylinder or prism in refractometer

Last post by Valaya99 « Sun Feb 23, 2020 2:16 pm
Replies: 2
by Valaya99 » Sun Feb 23, 2020 1:07 pm

2 Replies

5786 Views

Last post by Valaya99
Sun Feb 23, 2020 2:16 pm
Career Advice for Gemmology

Last post by gemstonebank « Sat Sep 07, 2024 1:39 pm
Replies: 7
by urjazaveri » Sun Jun 30, 2019 1:08 pm

7 Replies

53343 Views

Last post by gemstonebank
Sat Sep 07, 2024 1:39 pm
Medium colored rose garnet black out

Last post by clayboy « Tue Jun 18, 2019 3:17 am
Replies: 12
by clayboy » Sat Jun 15, 2019 12:46 pm

12 Replies

7518 Views

Last post by clayboy
Tue Jun 18, 2019 3:17 am
Stone identification needed

Last post by Adamjlester « Tue Jun 04, 2019 5:23 pm
Replies: 13
by Adamjlester » Sun May 26, 2019 8:18 pm

13 Replies

11403 Views

Last post by Adamjlester
Tue Jun 04, 2019 5:23 pm
citrine tolerance temperature

Last post by Stephen Challener « Sat Aug 04, 2018 12:26 pm
Replies: 3
by Iluvatar » Fri Aug 03, 2018 6:03 pm

3 Replies

20088 Views

Last post by Stephen Challener
Sat Aug 04, 2018 12:26 pm
Vermont State Stone

Last post by Barbra Voltaire, FGG « Wed Jul 19, 2017 3:21 pm
Replies: 1
by jleshe447 » Wed Jul 19, 2017 2:43 pm

1 Replies

5106 Views

Last post by Barbra Voltaire, FGG
Wed Jul 19, 2017 3:21 pm
Irradiated Topaz

Last post by Stephen Challener « Thu Aug 19, 2021 12:32 pm
Replies: 9
by chathurangani » Wed Jul 12, 2017 6:50 am

9 Replies

10052 Views

Last post by Stephen Challener
Thu Aug 19, 2021 12:32 pm
Gem Spectrum resources

Last post by Alan F. « Sun Aug 28, 2016 7:21 am
Replies: 4
by VargaStyle » Wed Aug 17, 2016 3:54 pm

4 Replies

4983 Views

Last post by Alan F.
Sun Aug 28, 2016 7:21 am
Performing Appraisal Work

Last post by Barbra Voltaire, FGG « Thu Sep 22, 2022 2:01 pm
Replies: 4
by Gemology88 » Mon Jun 27, 2016 12:56 pm

4 Replies

21655 Views

Last post by Barbra Voltaire, FGG
Thu Sep 22, 2022 2:01 pm
Peruvian pink opal

Last post by Bluegemz « Fri Jul 07, 2017 8:23 am
Replies: 3
by Majorjim » Tue Feb 23, 2016 12:54 am

3 Replies

4558 Views

Last post by Bluegemz
Fri Jul 07, 2017 8:23 am
Emerald Grading

Last post by Stephen Challener « Sat Apr 09, 2016 6:34 pm
Replies: 37
by raygem » Fri Sep 04, 2015 11:22 am
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3
37 Replies

19402 Views

Last post by Stephen Challener
Sat Apr 09, 2016 6:34 pm
Thank You GO for Networking Results

Last post by Duncan Miller « Wed Jan 27, 2016 1:54 am
Replies: 3
by raygem » Fri Sep 04, 2015 12:19 pm

3 Replies

4498 Views

Last post by Duncan Miller
Wed Jan 27, 2016 1:54 am
Barbara website is offline?

Last post by Barbra Voltaire, FGG « Tue Aug 25, 2015 11:20 am
Replies: 5
by j2000 » Sat Jan 31, 2015 3:30 am

5 Replies

6928 Views

Last post by Barbra Voltaire, FGG
Tue Aug 25, 2015 11:20 am
Aquamarine/Emerald heating/oiling

Last post by navneetagarwal « Mon Aug 17, 2020 1:34 am
Replies: 18
by raygem » Fri Jul 24, 2015 11:03 am
1

2
18 Replies

12309 Views

Last post by navneetagarwal
Mon Aug 17, 2020 1:34 am
Biaxial - 3 Refractive Indices - Trichroic...........

Last post by Barbra Voltaire, FGG « Sat Jan 17, 2015 1:35 pm
Replies: 1
by Gem 14 » Sat Jan 17, 2015 12:27 pm

1 Replies

3598 Views

Last post by Barbra Voltaire, FGG
Sat Jan 17, 2015 1:35 pm
Amber question

Last post by raygem « Sun Sep 06, 2015 11:55 am
Replies: 21
by Cre » Tue Sep 02, 2014 12:10 am
1

2
21 Replies

15815 Views

Last post by raygem
Sun Sep 06, 2015 11:55 am
New to the forum

Last post by Conny Forsberg « Mon Apr 20, 2015 2:33 pm
Replies: 5
by elm » Tue Apr 08, 2014 5:43 pm

5 Replies

5935 Views

Last post by Conny Forsberg
Mon Apr 20, 2015 2:33 pm
Wild Makroskop M420 or M400

Last post by Conny Forsberg « Thu Nov 14, 2013 4:17 pm
Replies: 5
by PammyK » Wed Nov 06, 2013 11:06 pm

5 Replies

6034 Views

Last post by Conny Forsberg
Thu Nov 14, 2013 4:17 pm
I'm Back!

Last post by rashi « Mon Sep 16, 2013 6:56 am
Replies: 10
by gem doc » Sun Apr 14, 2013 9:05 pm

10 Replies

11422 Views

Last post by rashi
Mon Sep 16, 2013 6:56 am
Store Gem Display

Last post by Gem 14 « Fri Sep 19, 2014 5:39 am
Replies: 3
by GemManJake » Sat Jun 08, 2013 3:48 pm

3 Replies

7354 Views

Last post by Gem 14
Fri Sep 19, 2014 5:39 am
Opening for Analytical Tester - Mumbai

Last post by amruta « Tue May 21, 2013 7:49 am

by amruta » Tue May 21, 2013 7:49 am

0 Replies

4960 Views

Last post by amruta
Tue May 21, 2013 7:49 am
New gem chats

Last post by Riccardo Modanesi « Wed May 08, 2013 1:19 pm
Replies: 57
by Frank » Sun Aug 19, 2012 9:03 am
1

2

3

4
57 Replies

35023 Views

Last post by Riccardo Modanesi
Wed May 08, 2013 1:19 pm
Jolyon Ralph

Last post by Riccardo Modanesi « Wed May 08, 2013 1:14 pm
Replies: 12
by Doos » Thu Apr 27, 2006 11:22 am

12 Replies

29746 Views

Last post by Riccardo Modanesi
Wed May 08, 2013 1:14 pm
RosGem Refractometer

Last post by Mdoe755576 « Mon Mar 11, 2013 1:14 pm

by Mdoe755576 » Mon Mar 11, 2013 1:14 pm

0 Replies

4404 Views

Last post by Mdoe755576
Mon Mar 11, 2013 1:14 pm
Sapphire rough

Last post by Barbra Voltaire, FGG « Fri Nov 23, 2012 1:30 pm
Replies: 1
by Lyndon » Fri Nov 23, 2012 1:24 pm

1 Replies

4627 Views

Last post by Barbra Voltaire, FGG
Fri Nov 23, 2012 1:30 pm
ruby faceting

Last post by wfwilson « Wed Mar 26, 2014 10:00 am
Replies: 15
by tanzanite » Sat Sep 29, 2012 3:02 am
1

2
15 Replies

11131 Views

Last post by wfwilson
Wed Mar 26, 2014 10:00 am
New chats have started

Last post by Barbra Voltaire, FGG « Wed Sep 05, 2012 11:51 am
Replies: 21
by Frank » Tue Jan 24, 2012 2:40 pm
1

2
21 Replies

20358 Views

Last post by Barbra Voltaire, FGG
Wed Sep 05, 2012 11:51 am
Untreated Russian Chrome Diopside vs. Synthetic or Imitation

Last post by topaz mountains « Wed Sep 05, 2012 11:53 am
Replies: 3
by sbnet166 » Tue Aug 07, 2012 7:40 pm

3 Replies

6807 Views

Last post by topaz mountains
Wed Sep 05, 2012 11:53 am
Help with changing color Amethyst

Last post by Qld Barry « Mon Jul 16, 2012 11:41 pm
Replies: 3
by Sue H » Thu Aug 18, 2011 11:06 am

3 Replies

7719 Views

Last post by Qld Barry
Mon Jul 16, 2012 11:41 pm
Permission to Use Zircon Photograph Showing Doubling

Last post by GlobalTraveller007 « Wed Jan 04, 2012 2:49 pm
Replies: 11
by GlobalTraveller007 » Tue Dec 13, 2011 3:10 am

11 Replies

10057 Views

Last post by GlobalTraveller007
Wed Jan 04, 2012 2:49 pm
New Gemology Student looking for tips to start GIA

Last post by gaurav1871 « Thu Jul 16, 2015 2:37 pm
Replies: 20
by LindseyMashell » Mon Dec 12, 2011 8:39 pm
1

2
20 Replies

18146 Views

Last post by gaurav1871
Thu Jul 16, 2015 2:37 pm
where can I learn how to use FTIR

Last post by Julie Gowans-Poli « Tue Nov 15, 2011 5:14 am
Replies: 27
by Thu » Mon Oct 10, 2011 6:04 pm
1

2
27 Replies

20464 Views

Last post by Julie Gowans-Poli
Tue Nov 15, 2011 5:14 am
gemstone hardness

Last post by Barbra Voltaire, FGG « Fri Oct 23, 2020 1:13 pm
Replies: 30
by nirmala-raman » Sun Sep 11, 2011 1:11 pm
1

2

3
30 Replies

22629 Views

Last post by Barbra Voltaire, FGG
Fri Oct 23, 2020 1:13 pm
New Gemology Online Chat Room

Last post by chariz « Wed Aug 17, 2011 7:43 am
Replies: 7
by Barbra Voltaire, FGG » Sun Nov 14, 2010 3:18 pm

7 Replies

12835 Views

Last post by chariz
Wed Aug 17, 2011 7:43 am
cast medallion ?

Last post by Alberto « Wed Jul 20, 2011 11:34 am
Replies: 6
by muddy123 » Tue Jul 19, 2011 8:31 pm

6 Replies

6752 Views

Last post by Alberto
Wed Jul 20, 2011 11:34 am
GG help

Last post by nzjoys « Sun Sep 16, 2012 4:14 pm
Replies: 17
by mariana1 » Thu Jul 14, 2011 10:35 am
1

2
17 Replies

15394 Views

Last post by nzjoys
Sun Sep 16, 2012 4:14 pm
Hanneman-Hodgkinson Jadeite Filters

Last post by szmurphygirl « Mon Jul 16, 2018 11:15 pm
Replies: 4
by GlobalTraveller007 » Mon Jun 13, 2011 12:01 pm

4 Replies

6236 Views

Last post by szmurphygirl
Mon Jul 16, 2018 11:15 pm
Vincent Pardieu

Last post by mehoose « Mon Dec 20, 2010 11:28 pm
Replies: 57
by Doos » Fri Nov 25, 2005 2:26 pm
1

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3

4
57 Replies

61809 Views

Last post by mehoose
Mon Dec 20, 2010 11:28 pm
Shakespeare, W. on color grading

Last post by valeria102 « Thu Feb 11, 2010 9:58 pm
Replies: 6
by valeria102 » Sat Mar 21, 2009 5:41 pm

6 Replies

16569 Views

Last post by valeria102
Thu Feb 11, 2010 9:58 pm

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