Yes, we specialize in custom jewelry designs and sure can custom make this ring in 18k gold with invisible set princess cut diamonds.Please give us a call toll free in USA: 1-866-423-6262 or outside USA: 1-212-398-3123, our phone support is open Mon-Fri 10am-7pm EST and we will assist you with placing the order, or please reply to the email if you prefer the email correspondence.