A trusted jeweler in 1952, Ross-Simons is dedicated to quality and value. Treat yourself to a unique blend of lab-grown diamonds and mined gemstones at an incredible value. Our gorgeous 4.00 carat rectangular cushion-cut amethyst ring is a true beauty, featuring a sizable center gem flanked by.50 ct. t.w. round brilliant-cut lab-grown diamonds that create a classic three-stone design. Crafted in polished 18kt yellow gold over sterling silver. Lab-grown diamonds are identical to mined diamonds according to their optical, physical and chemical properties. 1/2" wide. Amethyst and lab-grown diamond ring. Each Ross-Simons item arrives in a fine jewelry presentation box. Shop Ross-Simons jewelry risk-free as all items include a 30-day, 100% money-back guarantee.Stone InformationGem Type 1 - AmethystStone Cut 1 - Good-CutStone Color 1 - Violet-BlueStone Clarity 1 - Violet-BlueStone Shape 1 - Rectangular-ShapeStone Creation Method 1 - NaturalStone Treatment Method 1 - Heat-TreatedStone Weight