Tutoring Sessions for Gemology Students and Enthusiasts

Moderators: Stephen Challener, Faceting 101 by Arya, Barbra Voltaire, FGG, Alberto

New Topic

60 topics

Topics

Replies

Views

Last post

How to tell if a Lightning Ridge black opal is real or fake?

Last post by ArmoniaGems « Tue Feb 03, 2026 2:31 am

by ArmoniaGems » Tue Feb 03, 2026 2:31 am

0 Replies

84 Views

Last post by ArmoniaGems
Tue Feb 03, 2026 2:31 am
What Does 925 and 585 Mean on Jewelry?

Last post by Barbra Voltaire, FGG « Thu Jan 15, 2026 8:13 pm
Replies: 1
by ArmoniaGems » Thu Jan 15, 2026 6:15 am

1 Replies

386 Views

Last post by Barbra Voltaire, FGG
Thu Jan 15, 2026 8:13 pm
Regular online platform for gemmology updates

Last post by glhays « Sat Jun 25, 2022 2:33 pm
Replies: 1
by Leel » Sat Jun 25, 2022 2:34 am

1 Replies

46976 Views

Last post by glhays
Sat Jun 25, 2022 2:33 pm
Learning to use Advanced equipment

Last post by 1bwana1 « Sat Aug 28, 2021 12:03 pm
Replies: 2
by Leel » Fri Aug 27, 2021 8:47 pm

2 Replies

21225 Views

Last post by 1bwana1
Sat Aug 28, 2021 12:03 pm
FGA diploma theory exams

Last post by HenkRijneveld « Sat Aug 28, 2021 7:43 am
Replies: 1
by Leel » Fri Aug 27, 2021 8:36 pm

1 Replies

8664 Views

Last post by HenkRijneveld
Sat Aug 28, 2021 7:43 am
Starting Gemology (Please help me to choose the right path)

Last post by Barbra Voltaire, FGG « Tue Mar 30, 2021 1:13 pm
Replies: 10
by mariona193 » Mon Jun 03, 2019 4:13 pm

10 Replies

16890 Views

Last post by Barbra Voltaire, FGG
Tue Mar 30, 2021 1:13 pm
NOVA Documentary - Treasures of the Earth - GEMS

Last post by Barbra Voltaire, FGG « Sat Nov 30, 2019 2:11 pm

by Barbra Voltaire, FGG » Sat Nov 30, 2019 2:11 pm

0 Replies

12620 Views

Last post by Barbra Voltaire, FGG
Sat Nov 30, 2019 2:11 pm
Gem and Jewelry Economics

Last post by OliVDB5590 « Wed Nov 27, 2019 12:31 pm
Replies: 2
by Paulo » Wed Mar 19, 2008 1:11 pm

2 Replies

14529 Views

Last post by OliVDB5590
Wed Nov 27, 2019 12:31 pm
RI Birefringence Flat Facet Testing

Last post by Barbra Voltaire, FGG « Mon May 21, 2018 11:55 pm
Replies: 1
by Bridge59 » Mon May 21, 2018 10:39 pm

1 Replies

11067 Views

Last post by Barbra Voltaire, FGG
Mon May 21, 2018 11:55 pm
Spectrum

Last post by path914 « Thu Dec 28, 2017 10:50 pm
Replies: 2
by kojf » Sat Sep 09, 2017 11:41 am

2 Replies

9985 Views

Last post by path914
Thu Dec 28, 2017 10:50 pm
estimating weight of diamonds

Last post by Dan&Sally « Tue Nov 10, 2015 5:21 pm
Replies: 1
by Dan&Sally » Thu Nov 05, 2015 12:54 am

1 Replies

10343 Views

Last post by Dan&Sally
Tue Nov 10, 2015 5:21 pm
Gemology test

Last post by dchallener « Sun Sep 27, 2015 2:10 pm
Replies: 11
by dchallener » Wed Jul 29, 2015 9:32 pm

11 Replies

15138 Views

Last post by dchallener
Sun Sep 27, 2015 2:10 pm
Let's talk light!

Last post by dchallener « Tue Aug 11, 2015 10:47 pm
Replies: 42
by Brian » Tue Apr 03, 2012 12:50 pm
1

2

3
42 Replies

36663 Views

Last post by dchallener
Tue Aug 11, 2015 10:47 pm
Gemology

Last post by Robin Winter « Fri Jul 10, 2015 10:00 pm
Replies: 1
by Bill Hanneman » Thu Jul 09, 2015 1:38 am

1 Replies

11739 Views

Last post by Robin Winter
Fri Jul 10, 2015 10:00 pm
Stonetes Teslap

Last post by thinslicevolta « Tue Feb 10, 2015 9:34 pm
Replies: 1
by exw23able » Fri Feb 06, 2015 3:58 am

1 Replies

12375 Views

Last post by thinslicevolta
Tue Feb 10, 2015 9:34 pm
The streak continues........

Last post by Barbara O. Ellis « Thu Dec 04, 2014 11:48 pm
Replies: 15
by Julie Gowans-Poli » Fri Aug 20, 2010 3:16 pm
1

2
15 Replies

24861 Views

Last post by Barbara O. Ellis
Thu Dec 04, 2014 11:48 pm
Chat.....

Last post by Frank « Mon Sep 23, 2013 3:03 pm
Replies: 84
by wypwong » Sun Feb 28, 2010 5:38 pm
1

2

3

4

5

6
84 Replies

60562 Views

Last post by Frank
Mon Sep 23, 2013 3:03 pm
Hello

Last post by Nindi « Tue Aug 13, 2013 6:03 am
Replies: 2
by Nindi » Tue Jul 30, 2013 8:37 pm

2 Replies

11307 Views

Last post by Nindi
Tue Aug 13, 2013 6:03 am
band gap theory

Last post by Tim « Sun Jul 08, 2012 2:52 pm
Replies: 3
by Lucy- » Fri Jul 06, 2012 8:03 am

3 Replies

17061 Views

Last post by Tim
Sun Jul 08, 2012 2:52 pm
Crystal Systems - confused with the axes

Last post by Frank « Mon Jul 02, 2012 1:52 pm
Replies: 17
by Lucy- » Mon Jun 25, 2012 4:54 pm
1

2
17 Replies

21184 Views

Last post by Frank
Mon Jul 02, 2012 1:52 pm
Need help.......

Last post by CraftyCritter « Fri Nov 04, 2011 8:02 pm
Replies: 15
by CraftyCritter » Thu Oct 27, 2011 5:44 pm
1

2
15 Replies

14601 Views

Last post by CraftyCritter
Fri Nov 04, 2011 8:02 pm
New chat from Brian

Last post by Brian « Tue Jun 07, 2011 11:19 pm
Replies: 16
by Frank » Sat May 21, 2011 4:26 pm
1

2
16 Replies

16426 Views

Last post by Brian
Tue Jun 07, 2011 11:19 pm
Best Used Scopes?

Last post by G4Lab « Thu May 05, 2011 12:25 pm
Replies: 82
by mitch57 » Tue Apr 12, 2011 10:22 pm
1

2

3

4

5

6
82 Replies

40352 Views

Last post by G4Lab
Thu May 05, 2011 12:25 pm
Chats finished for the duation of the vacation

Last post by Frank « Sat Jul 10, 2010 1:53 pm

by Frank » Sat Jul 10, 2010 1:53 pm

0 Replies

6441 Views

Last post by Frank
Sat Jul 10, 2010 1:53 pm
Chats changing back to Saturday nights.

Last post by Frank « Sat Jun 19, 2010 1:34 pm
Replies: 8
by Frank » Thu May 20, 2010 1:37 pm

8 Replies

8985 Views

Last post by Frank
Sat Jun 19, 2010 1:34 pm
Revision week

Last post by Frank « Sun Jun 06, 2010 1:44 pm

by Frank » Sun Jun 06, 2010 1:44 pm

0 Replies

6358 Views

Last post by Frank
Sun Jun 06, 2010 1:44 pm
crystal symmetry Sunday 7th Feb

Last post by Pedro « Sun Feb 14, 2010 11:49 pm
Replies: 5
by Frank » Wed Feb 03, 2010 3:59 pm

5 Replies

8376 Views

Last post by Pedro
Sun Feb 14, 2010 11:49 pm
revision chats for gem-a students

Last post by Frank « Sun Jan 17, 2010 3:08 pm
Replies: 7
by Frank » Sun Jun 07, 2009 5:29 pm

7 Replies

10272 Views

Last post by Frank
Sun Jan 17, 2010 3:08 pm
back for more chats

Last post by Frank « Sat Dec 19, 2009 11:57 am
Replies: 39
by Brian » Thu Nov 12, 2009 12:42 pm
1

2

3
39 Replies

28713 Views

Last post by Frank
Sat Dec 19, 2009 11:57 am
Using an IRC client to chat instead of the web login

Last post by Julie Gowans-Poli « Fri Nov 06, 2009 5:34 am
Replies: 17
by Julie Gowans-Poli » Wed Nov 04, 2009 8:36 pm
1

2
17 Replies

20620 Views

Last post by Julie Gowans-Poli
Fri Nov 06, 2009 5:34 am
chat tomorow?

Last post by Brian « Tue Nov 03, 2009 12:45 am
Replies: 18
by Pedro » Fri Oct 16, 2009 4:33 pm
1

2
18 Replies

19376 Views

Last post by Brian
Tue Nov 03, 2009 12:45 am
Is there a chat this week?

Last post by Julie Gowans-Poli « Sun Oct 11, 2009 11:18 am
Replies: 6
by Julie Gowans-Poli » Sat Oct 10, 2009 12:57 pm

6 Replies

9878 Views

Last post by Julie Gowans-Poli
Sun Oct 11, 2009 11:18 am
restart of the weekly chats

Last post by Julie Gowans-Poli « Wed Sep 30, 2009 2:43 pm
Replies: 24
by Frank » Mon Sep 14, 2009 4:47 pm
1

2
24 Replies

31826 Views

Last post by Julie Gowans-Poli
Wed Sep 30, 2009 2:43 pm
Coming up: fused chats, gemmology & physics

Last post by Tim « Tue Jul 14, 2009 10:22 am
Replies: 54
by Tim » Mon Apr 27, 2009 2:46 pm
1

2

3

4
54 Replies

92823 Views

Last post by Tim
Tue Jul 14, 2009 10:22 am
New: Sunday chats

Last post by Brian « Mon Apr 27, 2009 2:56 pm
Replies: 271
by Doos » Wed May 30, 2007 10:58 am
1

…

15

16

17

18

19
271 Replies

185646 Views

Last post by Brian
Mon Apr 27, 2009 2:56 pm
Saturday Gemmology Chats

Last post by Tim « Sat Apr 04, 2009 2:24 pm
Replies: 67
by Tim » Mon Aug 11, 2008 3:08 pm
1

2

3

4

5
67 Replies

72393 Views

Last post by Tim
Sat Apr 04, 2009 2:24 pm
UC Berkeley Gemology Class

Last post by Barbra Voltaire, FGG « Mon Mar 02, 2009 7:58 am

by Barbra Voltaire, FGG » Mon Mar 02, 2009 7:58 am

0 Replies

9168 Views

Last post by Barbra Voltaire, FGG
Mon Mar 02, 2009 7:58 am
Saturday Chat???

Last post by Doos « Sun Feb 15, 2009 6:15 am
Replies: 2
by Mr Calloway » Sat Feb 14, 2009 8:18 pm

2 Replies

7589 Views

Last post by Doos
Sun Feb 15, 2009 6:15 am
Directional Properties

Last post by Barbara O. Ellis « Wed Nov 05, 2008 10:47 am
Replies: 6
by natascha » Sun Mar 30, 2008 12:15 pm

6 Replies

12910 Views

Last post by Barbara O. Ellis
Wed Nov 05, 2008 10:47 am
How much time to Allow for GIA Gem ID distance class

Last post by gemlover « Mon Jul 28, 2008 9:01 pm
Replies: 2
by Barbra Voltaire, FGG » Mon Jul 28, 2008 12:22 pm

2 Replies

9432 Views

Last post by gemlover
Mon Jul 28, 2008 9:01 pm
It'll be quiet for a few weeks on the saturday

Last post by Brian « Tue Jul 08, 2008 5:08 pm
Replies: 2
by Tim » Tue Jul 08, 2008 1:25 pm

2 Replies

8120 Views

Last post by Brian
Tue Jul 08, 2008 5:08 pm
LIVE TODAY :

Last post by Tim « Sat Jun 28, 2008 9:36 am
Replies: 13
by Tim » Sat Apr 26, 2008 12:33 pm

13 Replies

15593 Views

Last post by Tim
Sat Jun 28, 2008 9:36 am
Coming up soon: Australasian chat

Last post by Keirkof « Sat Jun 21, 2008 6:57 am
Replies: 1
by Tim » Sat Jun 07, 2008 10:33 am

1 Replies

7982 Views

Last post by Keirkof
Sat Jun 21, 2008 6:57 am
Posted Chat Logs

Last post by Barbra Voltaire, FGG « Tue May 06, 2008 12:44 pm

by Barbra Voltaire, FGG » Tue May 06, 2008 12:44 pm

0 Replies

7895 Views

Last post by Barbra Voltaire, FGG
Tue May 06, 2008 12:44 pm
Tutorial on using mIRC to join the online class

Last post by Tim « Sun Apr 27, 2008 11:51 am
Replies: 3
by Keirkof » Sun Apr 27, 2008 11:08 am

3 Replies

9473 Views

Last post by Tim
Sun Apr 27, 2008 11:51 am
I can't get into the new chatroom

Last post by Tim « Sun Apr 27, 2008 11:15 am
Replies: 6
by Frank » Sat Apr 26, 2008 4:04 pm

6 Replies

10311 Views

Last post by Tim
Sun Apr 27, 2008 11:15 am
Saturday Chats 2 hours earlier

Last post by Barbra Voltaire, FGG « Thu Apr 24, 2008 10:50 am
Replies: 1
by Tim » Thu Apr 24, 2008 3:06 am

1 Replies

9098 Views

Last post by Barbra Voltaire, FGG
Thu Apr 24, 2008 10:50 am
Saturday Chats

Last post by Crystal Star « Wed Apr 23, 2008 4:31 pm
Replies: 49
by wildflower » Tue Oct 16, 2007 4:08 pm
1

2

3

4
49 Replies

52835 Views

Last post by Crystal Star
Wed Apr 23, 2008 4:31 pm
gemology equipments

Last post by Annie « Sun Mar 02, 2008 2:04 am
Replies: 3
by hiromasa » Sat Mar 01, 2008 5:41 am

3 Replies

10663 Views

Last post by Annie
Sun Mar 02, 2008 2:04 am
Sunday Chat

Last post by arainboz « Thu Feb 14, 2008 5:19 pm
Replies: 4
by Snizzer » Sat Nov 05, 2005 5:38 pm

4 Replies

16382 Views

Last post by arainboz
Thu Feb 14, 2008 5:19 pm

New Topic

60 topics

Return to Board Index

Forum permissions

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum