Ombre is the term used for colors that vary in saturation, typically from a rich to light level of saturation.  These earrings feature eighteen 2.5 mm princess cut sapphires that vary in their levels of blue color saturation with the richest color at the top of the hoops and lightest at the bottom.  The stones are channel set in slight curve that largely covers the face or front of the earrings.  The princess sapphires have excellent clarity and brilliance.  The hoops are made with 4.75 grams of 14KWG and are 25 mm or just a bit less than 1″ in length.         AGTA Gemstone Enhancement Codes N = Not Enhanced E = Routinely Enhanced C = Coating D = Dyeing F = Filling H = Heating HP = Heat & Pressure I = Impregnating L = Lasering O = Oiling/Resin R = Irradiation U = Diffusion W = Waxing/Polishing in Opaque Stones Color Symphony only sells gemstones that qualify as being natural.This includes both heated and unheated or untreated stones (with exception some blue topaz and colored diamonds may also be irradiated).  As a proud member of the American Gem Trade Association we pursue ethical business practices and disclose all gemstone enhancements or treatments to our clients.