Semi Mount Diamond Engagement Ring. PLATINUM HEAD IS FOR 6.5MM ROUND STONE.Photos have been enlarged to show detail. We are more than willing to help you with any problems or answer any questions you may have. The item "18k white gold 1ct VS2 H diamond semi mount engagement ring 6.7g vintage" is in sale since Saturday, June 03, 2017. This item is in the category "Jewelry & Watches\Engagement & Wedding\Engagement Rings\Settings Only". The seller is "finerdiamond" and is located in Cincinnati, Ohio. This item can be shipped worldwide.