4.5 mm Lab Grown Diamond Eternity Solstice Ring4. 5 mm Lab Grown Diamond Eternity Band This one off eternity band features fourteen 4. 5 mm round lab grown diamonds in a prong setting and scalloped body design. Made in solid 14k white gold, the ring's exposed interior provides all around brilliance where the light reflects through, allowing for maximum shine coming from the bottom of each stone. It's a show stopping piece that undeniably sparkles from all angles. 4. 88 Carats Total Diamond Weight