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Emerald Colours - Gem Related Discussion - IGS Forums The IGS forum and site is full of excellent information… just found this one: International Gem Society How to Re-Oil Emeralds Safely and Easily - International Gem Society Oil treatment is a standard industry practice for enhancing emeralds However, the treatments are not permanent Learn how to re-oil emeralds safely
Qualified gemologist info please - IGS Forums Hello Mr Sanchez and thank you for your positive comments There is AGA interest!! As a LIFE MEMBER of IGS and IGS, PG … I have been attending the AGA Continuing Professional Education conferences and seminars for years and I have personally spoken to many of the AGA members about getting IGS Accredited Since AGA is the Accrediting Body …
Cutting Oregon Sunstones: A Step-by-Step Guide THIS IS REPOST Hello to the IGS Community, Today, I’ll walk you through how we process and cut Oregon Sunstones that were sent to us by a customer from Washington, USA We follow a precise process to ensure the highest quality and best results for the stones Step 1 – Rough Evaluation First, our master cutters carefully assess each rough sunstone This involves evaluating the size, clarity
Alexandrite testing - Gem Related Discussion - IGS Forums The IGS Refractive Index list indicates Spinel can also have a R I = 1 74; therefore, it cannot be ruled out at this point The PRI-M from Presidium is an interesting instrument It can measure the indicated R I of a stone But it has some limitations as it is difficult to measure the birefringence optical sign response