Diamond Exchange Houston has this 3.5 CTW Marquise Engagement Ring and Wedding Bands available for only $4000 ***Price reduced for quick sale to $3500***. This ring features a marquise diamond as the main stone. The dual wedding bands give it a large and beautiful look for a great price. We only have 1 set of rings like this available at this price. If you are interested in purchasing this engagement ring or would like to see these ring in person then please fill out our contact form to schedule an appointment or call us today at 281-623-1105. Diamond Exchange Houston has a large selection of wholesale diamonds and engagement rings to choose from.