Item Weight: 3.15Metals Type: Silver ColourMetal Stamp: 925,SterlingGender: WomenMain Stone: AAA+ Cubic Zirconia DiamondsSetting Type: Prong SettingModel Number: R0230Shape\pattern: PLANTRings Type: Wedding BandsOccasion: EngagementRing: Wedding/Engagement/Party/Sterling silver Filled/ silver filled ringOccasion: Party / Office / Valentine's Day Gift / Shopping / DatingSeason: Spring/ summer/ autumn/ winterWeight: About 2.5gGift for: Girl friend / Wife / Mum/ Friends/New Year, Valentine's Day, Easter, Mothers DayColor: sliver, white, blue Like in diamonds, cut, quality, and color affect the grade of Cubic Zirconias. An AAA+-rated CZ stone will surpass a lower grade piece in symmetry, luster, and shine. The AAA+ rating is the most popular grade for high-quality fashion jewelry. AAA+ - “AAA+” grade is assigned to a gemstone that is considered to “being near perfect.” Gemstone grading is assigned by letter. AAA+ is the highest grade while D is the lowest.Though these stones do show some variation in colour, they are clean, well cut and polished. AAA+ grade Cubic Zirconia are usually more expensive, higher quality, and near-perfect. These diamonds are not usually color-enhanced and most of them are faceted cut.Due to its low cost and close visual likeness to diamond, cubic zirconia has remained the most gemologically and economically important diamond simulant since 1976.