This ring guard has approximately 6mm open space at the top and 3mm open space at the bottom to fit your engagement ring. Diamond Ring Guard 14k White Gold Wedding Engagement Band (1/4 Carat). Diamond Wedding Ring Guard 14k White Gold (1/4 Carat). Brand: Apex Jewels Style: Bands & Sets Occasion: Engagement Resizable: Yes Adjustable: No Size/Dimensions: 9 Metal Stamp: 14 kt Diamond Color: G-J