This is a Fashion Ring because it isn't solid precious metal and the Emerald isn't Genuine, (the CZs are genuine  however.) They are usually White or Yellow Gold plated some very poorly and the base metal can be poor quality.
This Simulated Gemstone Ring is solid Copper that has been Sterling Silver Filled, then White Gold plated. This imparts a rich finish that looks like White Gold Filled or solid Gold and provides extra staying power to the finish for longer wear. However this jewelry is not good for every day, it is Definitely good for Once in a while.
This is the process described to me by the manufacturer.
This piece is gorgeous!
In real life it looks like a genuine emerald with white diamonds in white gold. It's the perfect proportions for what you might get in 14k white gold. At the very least it looks like a gorgeous Lab Emerald in Rhodium plated Sterling Silver with White Zircon and .5mm Round White Diamonds. The Melee stones look extremely believable as diamonds.
Not all jewelry has to be genuine. But All jewelry has to be Beautiful and this ring is beautiful.
Wt. Gold Plated Silver Filled Copper
Lab Created Emerald Simulant (This Emerald simulant does not test as CZ or even Glass on my smartPro Gem Tester so it is most like a lab sone of some sort. This Emerald simulant is also Hand Cut and not by machine and the Girdles (sides) of the gemstone are highly polished. That simply isnt done, by hand, on cheap gemstone material so it's a quality Simulant.)
Size 6 1/2