How to tell the difference between Unheated Ruby & Lead Glass Filled Ruby?
5:28
How to Classify a Lead Glass–Filled Ruby by GIA
8:28
Identifier les vraies et fausses pierres (Saphir et rubis)
7:01
How much and what type of inclusions does a 3-carat Unheated Pigeon Blood Mozambique Ruby have?
9:45
First Time Heat Treating Rubies
20:19
OLHA TRANSFORMEI ESSA PEDRA PARECE DIAMANTE
18:54
How much does a one carat ruby cost? - Comprehensive Guide discussing 4Cs plus Origin & Treatment
52:03
Le rubis sang de pigeon de Birmanie documentaire de Patrick Voillot
10:58