Our long time member and friend, John LeBourgeois, passed away June 24, 2022. He will be sorely missed by all.



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 Fri Jul 01, 2022 10:50 pm

View unanswered posts | View active topics


Board index » Gemology Schools, Labs, Research & Appraisal Facilities » GGTL Laboratories

All times are UTC - 4 hours




Post new topic Reply to topic  Page 1 of 1
  [ 5 posts ] 
  Print view Previous topic | Next topic 
Author Message
Alberto
 Post subject: GGTL newsletter ALERT - N° 5 March
PostPosted: Thu Mar 26, 2015 6:50 am 
Offline
Site Admin
User avatar

Joined: Fri May 12, 2006 11:24 am
Posts: 7514
Location: Rome, Italy
hola folks,

3 days ago i personally saw the stone at Thomas boot in the diamond show, Basel....

[pdfview]https://www.facebook.com/download/1377248859267486/GGTL_Newsletter_ALERT_No_5_March_2015_%28EN%29.pdf[/pdfview]

_________________
GemmoRaman-532 - GemmoFTIR - GemmoSphere - EXA

Top
 Profile  
Reply with quote  
Barbra Voltaire, FGG
 Post subject: Re: GGTL newsletter ALERT - N° 5 March
PostPosted: Thu Mar 26, 2015 10:58 pm 
Offline
Site Admin
User avatar

Joined: Sun Oct 16, 2005 12:22 pm
Posts: 21289
Location: San Francisco
Good grief....who in a million years would individually test a parcel of 1.6mm diamonds. That is a the perfect con.
Top
 Profile  
Reply with quote  
Stephen Challener
 Post subject: Re: GGTL newsletter ALERT - N° 5 March
PostPosted: Thu Mar 26, 2015 11:53 pm 
Offline
Moderator
User avatar

Joined: Mon Apr 02, 2012 9:31 pm
Posts: 3858
Location: North Carolina
Disclosure is vital, but is the value much different in that size range? I really don't know, sorry if it's a dumb question.

_________________
Rough and cut classic and exotic synthetic gems:https://www.etsy.com/shop/turtleshoard

Top
 Profile  
Reply with quote  
Alberto
 Post subject: Re: GGTL newsletter ALERT - N° 5 March
PostPosted: Fri Mar 27, 2015 3:59 am 
Offline
Site Admin
User avatar

Joined: Fri May 12, 2006 11:24 am
Posts: 7514
Location: Rome, Italy
Scarodactyl wrote:
Disclosure is vital, but is the value much different in that size range? I really don't know, sorry if it's a dumb question.


that's not a dumb question atall........this seems to be an "as grown" so, no further HPHT treatment means no additional costs BUT, methink in that size the natural stuff is still cheaper..........actually HPHT is more scary than CVD in many ways. New improved and cheaper presses are producing bigger and bigger Xls in bunch per cycles.........for not to say about the melee...........

_________________
GemmoRaman-532 - GemmoFTIR - GemmoSphere - EXA

Top
 Profile  
Reply with quote  
Barbra Voltaire, FGG
 Post subject: Re: GGTL newsletter ALERT - N° 5 March
PostPosted: Fri Mar 27, 2015 10:24 am 
Offline
Site Admin
User avatar

Joined: Sun Oct 16, 2005 12:22 pm
Posts: 21289
Location: San Francisco
Wow.
Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  Page 1 of 1
  [ 5 posts ] 

Board index » Gemology Schools, Labs, Research & Appraisal Facilities » GGTL Laboratories

All times are UTC - 4 hours


Who is online

Users browsing this forum: No registered users and 2 guests

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

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