The Criterion – Connoisseurship in Ruby & Sapphire
What the cognoscenti look for when evaluating ruby and sapphire.
Ruby Evaluation & Buyer’s Guide – A Primer
Clarities, Enhancements & More
A Brief Introduction To Colored Gemstone Clarity Grading
Enhancements in Ruby & Sapphire ( Part 1)
Beryllium Treatment in Sapphire
How do I Grade and Value the Different Colors And Sizes Of Blue Sapphire?
Valuing Ruby & Sapphire
In this part of the Learn Section we look at the value ranges for ruby and sapphire. Please make sure you are familiar with all the concepts covered within The Criterion, and Clarities, Enhancements & More sections before using this section¹.
The History Of Fine Jewelry
And Its Significant Eras & Biographies Of Revered Fine Jewelry Houses
A Brief History Of Tiffany & Co.
Lalique – The First Master Jeweler?
Musings & Reflections on other Gemstones
Gemstone Advisory
Demantoid Garnet
Spessartite Garnet
Tourmaline