From the Kimai website: The Semi Hoop is an attention seekers – with 10 lab grown diamonds held in our recycled gold setting it’s the ultimate in guilt-free glitter. The hoop earring hangs underneath your earlobe and curves behind it in a ribbon of shimmer. Sold as single, you can pair these up, or contrast with our Nemo earring for a bolder feel. Materials – The Semi Hoop Earring is set with 10 brilliant-cut diamonds totalling 0.32 carat. The diamonds have a color grade of D-F and clarity VS+. This piece has a total of 1.2g of gold LAB GROWN DIAMONDS Our diamonds are created using cutting-edge technology that replicates natural growing conditions in a lab. This results in diamonds that are chemically and physically identical to the ones sourced from mines. RECYCLED GOLD Gold can be melted and reshaped without losing its quality. By using recycled gold, we cut out the unsustainable mining process of new gold. 18k gold is the most typical type used for high quality luxury fine jewelry. It has a desirable, sunny yellow appearance that is deemed classically attractive. Size and Fit – The Semi Hoop is 16.6mm long and comes with a butterfly back.