Seven round brilliant-cut moissanites are prong-set side by side on this solid yellow gold band. The gold ring is made with 14-karat purity and is finished with a high polish. The brilliance of moissanite presents itself with the greatest sparkle known to fine jewelry. As a synthetic clear gemstone it it worthy to note moissanite is hugely superior to other lab-created counterparts such as cubic zirconia or crystals. Moissanite is a very carefully created stone carrying traits similar to or even surpassing that of diamonds in resilience and brilliance DEF Quality Moissanite Comes with a Kobelli Certificate of Authenticity and Limited Lifetime Warranty Card To maintain the bright sparkle of your gemstones if it is to become 'grayish' over time, it simply needs a quick steam cleaning to remove any impurities from the surface.