Big Bertha is a one off cocktail ring featuring a 20x 20x12mm rutilated quartz and sterling silver. This ring is heavy! and not recommended for beginners. This piece must be bought from my studio as i have to fit it to the wearer...no joke, its an amazing ring and must be fitted correctly. For the connoisseur: this ring was hand carved, not CAD programmed...Not that there's any thing wrong with that :) $1800.