1.25ct Simulated Sapphire United States Air Force Ring 14k Yellow Gold Plated. Introducing the United States Air Force Blue Center Stone Ring. This luxurious ring is perfect for any Air Force lover. The ring is plated and polished to a high shine and is engraved with the Air Force logo. This ring is made to order. Box shown in image may differ as per availability. The black oxidized part on the ring may or may not be present as final look may vary slightly post manufacturing.