Recently we examined a custom-made ring that contained a cushion cut center diamond surrounded by 28 round fancy pink melee. The ring also contained other round brilliants in the setting. We estimated the center diamond…
Gem NotesRecently a subscriber submitted a cushion cut yellow sapphire weighing 5.13 carats for an estimate of wholesale value. The stone exhibited a fairly even yellow color consistent with GIA GemSet Y4/5. Our initial examination was…
Gem NotesThe lead article in this newsletter on Disclosing and Explaining Treatments has references to the availability pyramid shown below. Along with this chart is a theoretical value chart based on treatment. These charts illustrate the…
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