Difference Between Unheated & Heated Royal Blue Sri Lankan Sapphire in the 4 to 5-Carat Range
8:28
Differences Between Tanzanite and Sapphire Gemstones
18:54
How much does a one carat ruby cost? - Comprehensive Guide discussing 4Cs plus Origin & Treatment
46:36
Hunting Down A Royal Blue Sapphire: Inside The Gem Trade | In Search Of Precious Stones | Ep 3/4
3:28
How to tell the difference between Unheated and Heated Sapphire by checking Rutile Silk Inclusions
4:43
The Hidden Truth of Ceylon Blue Sapphire Prices
7:11
Heated VS Unheated Sapphires & Rubies + Prices
7:36
How to Determine a Value of Blue sapphire? Based on 4Cs plus OT - A Buying Guide
7:21