February 25-26: VALLEJO, CALIFORNIA: Annual show; Vallejo Gem and Mineral Society; Solano County Fairgrounds



THE GEMOLOGY PROJECT
is a free Gemological Encyclopedia
that anyone can edit!

The Gemology Project: Wiki Style Gemology Encyclopedia
JOIN NOW!

 


FREE ONLINE GEMOLOGICAL INFO:

Complete Collection Of Gems & Gemology




Justin K. Prim: MAGUS GEMS




Geminterest

Magnetism in Gemstones






Gill's Historical Index to Gems and Gemology




Inclusions in Gems

Dave Gibson's Mexican Amber


BARBRA VOLTAIRE'S #1 CHOICES
for GEMOLOGICAL INSTRUMENTS



Magi Labs


ESSENTIAL SOFTWARE


Gemology Tools Professional

GemologyOnline's Book Shop

Anything purchased in the bookshop earns a small commission for GO.


DIRECT LINKS TO TOPICS OF INTEREST:

-How to Post a Picture on the Forum

-Alphabetical List: Books on Gems, Minerals, Jewelry,
Sterling and Retated Topics including valuation and
appraisal references.

-GEMS 101:Descriptions of Gems

-Chelsea Filter Reactions

-Crystal Systems

-Diamonds: The 4 C's

-Estimating Carat Weight

-DICTIONARY of GEM TERMS

-Identifying Gems w ⁄o Instruments,W.Wm Hanneman, PhD

-LaShawn Bauer's Guide to Jewelry Appraising

-Mohs' Scale of Hardness

-Properties for Gem ID

-Trade Abbreviations and Acronyms

-Treatments & Enhancements

-Synthetic vs. Imitation Gems

-Useful Gemology Links!

 

GEM and MINERAL SHOW LISTS
Upcoming Gem Shows
Mindat's Upcoming Mineral Shows

 

GEMOLOGY ONLINE STAFF:

Administrators:

Barbra Voltaire, BSc, FGG, GG
Gemologist, Geologist, Jewelry Historian
barbra@gemologyonline.com


Alberto Scarani, IGI, GG
Gemologist, Master Goldsmith, Author
alberto@gemologyonline.com

Moderators:

Conny Forsberg, FGA
Diamond cutter, Gemologist, IT Pro
conny@gemologyonline.com


Jon Rolfe
Master Gem Cutter; Lapidary Supplier
jon@gemologyonline.com

Tom Smith
Master Diamond Cutter; Lapidary Supplier
tom@gemologyonline.com

Stephen Challener
Geologist
Stephen@gemologyonline.com
Welcome to the GemologyOnline.com Forum
A non-profit Forum for the exchange of gemological ideas
It is currently Mon Mar 20, 2023 8:40 pm

View unanswered posts | View active topics


Board index

All times are UTC - 4 hours


View unanswered posts

   Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. NPR interview about lab created gems

in Synthetics and Treatments

Stephen Challener

0

4

Mon Mar 20, 2023 7:40 pm

Stephen Challener View the latest post

There are no new unread posts for this topic. Attachment(s) Facet design called "Robin"

in Lapidary Corner: Colored Stones

salik

0

1903

Wed Mar 01, 2023 5:31 am

salik View the latest post

There are no new unread posts for this topic. Attachment(s) Displacement After Earthquake in Turkey

in General Discussions

Barbra Voltaire, FGG

0

2382

Thu Feb 16, 2023 3:16 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Attachment(s) 2023 Sinkankas Symposium

in Upcoming Shows & Events

Barbra Voltaire, FGG

0

2202

Wed Feb 15, 2023 1:52 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. India's Home-Grown Diamonds

in Diamonds

Barbra Voltaire, FGG

0

1344

Sat Feb 11, 2023 3:02 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. 2023 Tucson Gem Mineral Show

in TUCSON GEM SHOW 2022 SPECIAL SECTION

Greenspinel

0

1753

Tue Jan 10, 2023 6:35 pm

Greenspinel View the latest post

There are no new unread posts for this topic. Attachment(s) GIA Teams with Alan Revere to Revamp Graduate Jeweler Class

in Jeweler's Bench

Barbra Voltaire, FGG

0

3093

Wed Dec 28, 2022 2:41 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Attachment(s) An Update on Sapphires with Unstable Color

in Colored Stones

Barbra Voltaire, FGG

0

1441

Wed Dec 28, 2022 2:24 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. CIBJO's Guide for Natural and Cultured Pearls

in Organic Gems

Barbra Voltaire, FGG

0

3575

Sat Dec 03, 2022 1:22 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Attachment(s) DeBeers Now Offers Diamond Grading

in Diamonds

Barbra Voltaire, FGG

0

1619

Wed Nov 30, 2022 1:05 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Attachment(s) Facets Sri Lanka Gem and Jewelry show 2023

in Upcoming Shows & Events

crescentgems

0

2982

Thu Nov 17, 2022 10:44 am

crescentgems View the latest post

There are no new unread posts for this topic. Attachment(s) Diamond mining results in environmental disaster

in Diamonds

Barbra Voltaire, FGG

0

1903

Thu Nov 03, 2022 12:21 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Imperial by Gem Instruments Faceting Machine

in Lapidary Corner: Colored Stones

glhays

0

5788

Mon Oct 31, 2022 4:58 pm

glhays View the latest post

There are no new unread posts for this topic. My design book, The Secret Teachings, back in stock

in Lapidary Corner: Colored Stones

justinkprim

0

4021

Thu Sep 22, 2022 10:04 am

justinkprim View the latest post

There are no new unread posts for this topic. Looking for Lee index

in Lapidary Corner: Colored Stones

fedathc

0

3938

Mon Sep 19, 2022 9:03 pm

fedathc View the latest post

There are no new unread posts for this topic. Labor Day Well Wishes to all!

in Upcoming Shows & Events

glhays

0

7079

Mon Sep 05, 2022 12:20 am

glhays View the latest post

There are no new unread posts for this topic. USPAP Extended until December 31, 2023

in Appraiser's Corner

Barbra Voltaire, FGG

0

9434

Thu Aug 11, 2022 9:05 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Diamond Grading Lab NY

in GIA (Gemological Institute of America)

Sparkles66

0

6499

Fri Jul 15, 2022 6:26 am

Sparkles66 View the latest post

There are no new unread posts for this topic. Gem Intro

in Gem-A (The Gemmological Association of Great Britain)

Barbra Voltaire, FGG

0

13634

Thu Jul 07, 2022 11:05 am

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. araiba like tourmaline, a misbegotten variety.

in Gems' Color

bruce_tourm

0

7428

Mon Jul 04, 2022 6:46 am

bruce_tourm View the latest post

There are no new unread posts for this topic. autoclave to age baltic amber

in Colored Stones

carver

0

5422

Mon Jul 04, 2022 3:36 am

carver View the latest post

There are no new unread posts for this topic. CASTING DOUBT: METAL CASTING IN THE ANCIENT WORLD

in Vintage & Antique Gemstones, Jewellery and Obects D'Art

Barbra Voltaire, FGG

0

10527

Sun May 22, 2022 10:59 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Attachment(s) Asking your Opinion

in Vintage & Antique Gemstones, Jewellery and Obects D'Art

Anabell

0

10277

Fri May 20, 2022 12:26 pm

Anabell View the latest post

There are no new unread posts for this topic. Tips on FGA exam

in Gem-A (The Gemmological Association of Great Britain)

Leel

0

9827

Thu May 05, 2022 11:32 am

Leel View the latest post

There are no new unread posts for this topic. Attachment(s) Eighteenth Annual Sinkankas Symposium

in Upcoming Shows & Events

Barbra Voltaire, FGG

0

5596

Fri Apr 22, 2022 9:25 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Indicolite Mysteries!

in Beginners Only!

Shifter55

0

5685

Thu Apr 14, 2022 4:44 am

Shifter55 View the latest post

There are no new unread posts for this topic. Brushless Motor mod for a Graves Mark 5XL?

in Lapidary Corner: Colored Stones

Turkinolith

0

5428

Tue Apr 12, 2022 1:33 pm

Turkinolith View the latest post

There are no new unread posts for this topic. Animating Gemstones

in Photography & Photomicrography

Greenspinel

0

14352

Mon Apr 11, 2022 5:11 pm

Greenspinel View the latest post

There are no new unread posts for this topic. Rhapsody in Blue: The art and Science of blue diamonds

in Diamonds

Barbra Voltaire, FGG

0

7426

Thu Apr 07, 2022 11:47 am

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Gran Colorimeter reprogram/manual

in Appraiser's Corner

JSC VCA

0

17466

Fri Mar 25, 2022 2:40 am

JSC VCA View the latest post

There are no new unread posts for this topic. A big hello from Boulder City, Nevada

in Let's Introduce Ourselves!

QIA

0

6000

Fri Mar 25, 2022 2:04 am

QIA View the latest post

There are no new unread posts for this topic. "Bala Koh-I-Noor, or the little Koh-I-Noor"

in Diamonds

Barbra Voltaire, FGG

0

5550

Thu Mar 17, 2022 12:48 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Attachment(s) Latest MasterValuer Course Updates

in Appraiser's Corner

melhuth

0

17434

Tue Mar 15, 2022 6:42 pm

melhuth View the latest post

There are no new unread posts for this topic. Attachment(s) Coral Traceability Using Novel Genetic-Testing Method

in SSEF: Swiss Gemmological Institute

Barbra Voltaire, FGG

0

10766

Mon Feb 14, 2022 1:52 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Will Angola become no. 1 diamond producer in the world?

in Diamonds

Barbra Voltaire, FGG

0

5953

Wed Jan 26, 2022 2:09 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. MasterValuer Contact Information

in Contact Information for Gemology Schools, Labs, Research & Appraisal Facilities

melhuth

0

7923

Wed Jan 19, 2022 3:17 pm

melhuth View the latest post

There are no new unread posts for this topic. Smithsonian's NSF REU Site: Natural History Research

in Employment Opportunities

Barbra Voltaire, FGG

0

14117

Fri Jan 07, 2022 1:49 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Ethan Baxter's: EVERY ROCK TELLS A STORY

in *Meandering Footnotes

Barbra Voltaire, FGG

0

19784

Thu Dec 23, 2021 1:58 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. A Glimmer of Hope: The World's Most Famous Blue Diamond

in GIA Current Research

Barbra Voltaire, FGG

0

8105

Thu Dec 16, 2021 7:46 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. New Covid Variant Forces Rough Prices Up

in Diamonds

Barbra Voltaire, FGG

0

5928

Fri Dec 03, 2021 9:37 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. AGA Anounces Bonnano Winner 2022

in TUCSON GEM SHOW 2022 SPECIAL SECTION

Barbra Voltaire, FGG

0

6294

Thu Dec 02, 2021 6:01 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. MANY BOOKS ETC ONLINE FOR FREE FROM Joseph Gill Gemologist

in Collecting Gem & Jewelry Books

gilljoseph1949

0

12697

Tue Nov 30, 2021 2:50 am

gilljoseph1949 View the latest post

There are no new unread posts for this topic. CIBJO CONFERENCE

in Upcoming Shows & Events

Barbra Voltaire, FGG

0

6505

Sun Nov 14, 2021 1:55 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. CIBJO releases Gemmological Special Report

in Colored Stones

Barbra Voltaire, FGG

0

5739

Wed Oct 20, 2021 2:39 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. SF Gem and Mineral Society: Virtual Turquoise Lecture

in Colored Stones

Barbra Voltaire, FGG

0

5896

Thu Oct 14, 2021 3:56 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. My Design Portfolio

in General Discussions

Arami

0

11138

Wed Oct 13, 2021 5:38 pm

Arami View the latest post

There are no new unread posts for this topic. Attachment(s) Justin Prim Makes the Cover of Journal of Gemmology!

in Gem-A (The Gemmological Association of Great Britain)

Barbra Voltaire, FGG

0

11254

Mon Sep 27, 2021 9:40 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Attachment(s) ASA Releases the 10th Edition of Jewelry Appraisal Handbook

in Appraiser's Corner

Barbra Voltaire, FGG

0

6365

Mon Sep 27, 2021 4:44 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Implications from the Roof Diamond

in Gem-A (The Gemmological Association of Great Britain)

Barbra Voltaire, FGG

0

10739

Mon Sep 13, 2021 11:07 am

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Attachment(s) Cats eye sapphire

in Collector's Corner: Gems

arms

0

6862

Wed Aug 18, 2021 11:52 pm

arms View the latest post

Display posts from previous:  Sort by:  
Page 1 of 20 [ Search found more than 1000 matches ]
Go to page 1, 2, 3, 4, 5 ... 20  Next


Board index

All times are UTC - 4 hours


Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
Gemology Style ported to phpBB3 by Christian Bullock