Gemology Online Chats

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

New Topic

74 topics

Topics

Replies

Views

Last post

Montana Sapphires Compared to Australian Sapphires: What Sets Them Apart?

Last post by Armonia « Wed Jul 08, 2026 8:01 am
Replies: 2
by NavneetGems » Wed Nov 19, 2025 7:00 am

2 Replies

9517 Views

Last post by Armonia
Wed Jul 08, 2026 8:01 am
Are Opalescent Stones Natural or Man-Made?

Last post by Armonia « Thu Jun 25, 2026 8:06 am
Replies: 4
by ArmoniaGems » Mon Feb 09, 2026 8:18 am

4 Replies

19732 Views

Last post by Armonia
Thu Jun 25, 2026 8:06 am
Red Garnet Rings Sparkling in Natural Sunlight

Last post by Barbra Voltaire, FGG « Fri Jan 02, 2026 11:58 pm
Replies: 2
by ArmoniaGems » Mon Dec 22, 2025 7:09 am

2 Replies

7315 Views

Last post by Barbra Voltaire, FGG
Fri Jan 02, 2026 11:58 pm
inclusions

Last post by danielle « Wed Dec 17, 2025 5:55 am
Replies: 26
by Bobby » Mon Jul 28, 2025 11:14 am
1

2
26 Replies

17614 Views

Last post by danielle
Wed Dec 17, 2025 5:55 am
How to tell if an Opal is Natural or Synthetic?

Last post by ArmoniaGems « Wed Dec 10, 2025 5:49 am
Replies: 2
by ArmoniaGems » Mon Nov 03, 2025 5:06 am

2 Replies

9331 Views

Last post by ArmoniaGems
Wed Dec 10, 2025 5:49 am
What do you think about Ethiopian opal jewelry?

Last post by NavneetGems « Thu Nov 20, 2025 7:46 am
Replies: 1
by ArmoniaGems » Fri Oct 24, 2025 3:42 am

1 Replies

6963 Views

Last post by NavneetGems
Thu Nov 20, 2025 7:46 am
spectroscope

Last post by path914 « Thu Nov 13, 2025 12:07 pm
Replies: 1
by Bobby » Thu Nov 13, 2025 2:48 am

1 Replies

6325 Views

Last post by path914
Thu Nov 13, 2025 12:07 pm
Yellow Sapphire (Pukhraj Stone)

Last post by ArmoniaGems « Thu Nov 13, 2025 2:18 am
Replies: 4
by thegemjournal » Mon Jul 14, 2025 7:32 am

4 Replies

9651 Views

Last post by ArmoniaGems
Thu Nov 13, 2025 2:18 am
Please can someone help me identify my gemstones?

Last post by Barbra Voltaire, FGG « Fri Nov 07, 2025 2:44 pm
Replies: 4
by Barbra Voltaire, FGG » Sun Nov 10, 2024 1:16 pm

4 Replies

16629 Views

Last post by Barbra Voltaire, FGG
Fri Nov 07, 2025 2:44 pm
Re: Top 10 Questions to Check Before Buying an Opal Gemstone Online

Last post by Barbra Voltaire, FGG « Sun Oct 19, 2025 12:44 pm

by Barbra Voltaire, FGG » Sun Oct 19, 2025 12:44 pm

0 Replies

20150 Views

Last post by Barbra Voltaire, FGG
Sun Oct 19, 2025 12:44 pm
synthetic or natural

Last post by Bobby « Wed Oct 01, 2025 9:13 am
Replies: 13
by Bobby » Sat Sep 13, 2025 8:51 am

13 Replies

9149 Views

Last post by Bobby
Wed Oct 01, 2025 9:13 am
unknown stone

Last post by Bobby « Sun Sep 28, 2025 10:35 pm
Replies: 12
by Bobby » Sun Aug 24, 2025 9:23 am

12 Replies

10203 Views

Last post by Bobby
Sun Sep 28, 2025 10:35 pm
Is it just obsidian?

Last post by Barbra Voltaire, FGG « Sun Sep 28, 2025 10:19 pm
Replies: 2
by obieblue » Thu Sep 18, 2025 10:02 pm

2 Replies

7093 Views

Last post by Barbra Voltaire, FGG
Sun Sep 28, 2025 10:19 pm
unknown old stone

Last post by Barbra Voltaire, FGG « Sun Sep 28, 2025 10:11 pm
Replies: 2
by Bobby » Sun Sep 14, 2025 6:21 am

2 Replies

7238 Views

Last post by Barbra Voltaire, FGG
Sun Sep 28, 2025 10:11 pm
Fire opal or imperial jade

Last post by Barbra Voltaire, FGG « Sun Sep 28, 2025 5:57 pm
Replies: 4
by obieblue » Sat Sep 20, 2025 12:43 am

4 Replies

7595 Views

Last post by Barbra Voltaire, FGG
Sun Sep 28, 2025 5:57 pm
inclusions

Last post by Barbra Voltaire, FGG « Wed Jul 09, 2025 3:24 pm
Replies: 9
by Bobby » Mon Jun 23, 2025 11:22 pm

9 Replies

61700 Views

Last post by Barbra Voltaire, FGG
Wed Jul 09, 2025 3:24 pm
alexandrite

Last post by Bobby « Mon Jun 23, 2025 11:12 pm
Replies: 8
by Bobby » Wed May 28, 2025 8:14 am

8 Replies

86831 Views

Last post by Bobby
Mon Jun 23, 2025 11:12 pm
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

34888 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

15387 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

12737 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

16987 Views

Last post by danielle
Wed Dec 25, 2024 1:29 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

31378 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

16519 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

16366 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

61072 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

54082 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

43994 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

14173 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

71582 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

17456 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

29906 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

28534 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

13191 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

29374 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

13339 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

38110 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

13057 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
1

2

3
37 Replies

44113 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

12952 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

15642 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

26835 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

11690 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

45143 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

14598 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

14661 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

20741 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

23436 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

13186 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

62645 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

41186 Views

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

New Topic

74 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