2.25 Carat Oval Halo Vintage-Style Engagement Ring With Man-Made Diamond Simulants This 2.25 Carat Oval Halo Vintage-Style Engagement Ring With Man-Made Diamond Simulants ($153) has an eco-friendly diamond that's actually man-made! Image Source: etsy.com 2.25 Carat Oval Halo Vintage-Style Engagement Ring With Man-Made Diamond $153 from etsy.com Buy Now