Each stone is lovingly crafted to reveal its inherent coloration and set in 18K gold. Length/Size: N/A Stone: Turquoise, Aquamarine Stone Size: 12-14mm Metal: Silver/18k Gold Please note, Nina Nguyen Designs only stocks rings in size 7- any other size will require extra time to produce.Due to the natural state of stones used by Nina Nguyen Designs, each piece will vary. Naturally occurring variations such as shape, color, shading, color concentration, thickness, texture, etc, are to be expected, are not flaws, and are not considered a manufacturer defect.