Handbook of Gemmology

Sponsors

We are delighted to welcome the following sponsors:

Diamond Level

National Council of Jewellery Valuers – www.ncjv.com.au
Canadian Gemmological Association – www.canadiangemmological.com
Gem-A – www.gem-a.com
GemDialogue – www.gemdialogue.com
National Association of Jewelry Appraisers (NAJA) – www.najaappraisers.com
Danny J Sanchez Photography – www.dannyjsanchez.com
Scovil Photography – www.scovilphotography.com

Ruby Level

Down to Earth Opals – www.downtoearthopals.com.au
The Australian Opal Centre – www.australianopalcentre.com

Emerald Level

Instituto Gemológico Español – www.ige.org
The Roskin Gem News Report – www.roskingemnewsreport.com
Egor Gavrilenko at Gems-Inclusions – www.gems-inclusions.com
Egor Gavrilenko at Gem-Sphalerite – www.gem-sphalerite.com
GemePrice – www.gemewizard.com
Black Opal Patterns – www.blackopalpatterns.com.au

Pearl Level

Sole-Leone – www.soleleonegems.com
Aly Pascha Gems of Fascination – www.alypascha.com
Estela Pelegrin FCGmA – www.pelegrinjewellery.com

Opal Level

Peter Grumitt at Apsara Gems – www.apsara.co.uk
Gemworld International – Publishers of GemGuide – www.gemguide.com
Thomas Hainschwang/GGTL Laboratories – www.ggtl-lab-org
Tom Chatham at Chatham – www.chatham.com
Lotus Gemmology – www.lotusgemology.com