Women's 1.90 ctw Princess & Round Cut Diamond Halo Engagement Ring 14KT Gold. This ring is a size 6 3/4.

1.04 Ctw Emerald Cut & Round Cut Diamond 10KT White Gold Engagement Ring by JD. This ring is a size 7.

0.85 ctw Princess & Round Diamond Past Present Future 14KT Gold Engagement Ring. This ring is a size 5 7/8. 

1.25 ctw Princess & Round Diamond Octagonal Halo 14KT White Gold Engagement Ring. This ring is a size 9.5. 

0.36 ctw Princess & Round Diamond Octagonal Halo 14KT White Gold Engagement Ring. This ring is a size 7.