United Kingdom Size 12mm Classic Huggie to US: 20G Delicate Stud

United Kingdom Size 12mm Classic Huggie: Features a post thickness of 1 $\text{mm}$ (0.0394 $\text{in}$), hoop inner diameter of 12 $\text{mm}$, drop length of 12 $\text{mm}$, gemstone carat equivalence of Pave Accent, and earring style Huggie / Medium Lobe.

US: 20G Delicate Stud: Features a post thickness of 0.8 $\text{mm}$ (0.0315 $\text{in}$), hoop inner diameter of 0 $\text{mm}$, drop length of 5 $\text{mm}$, gemstone carat equivalence of 0.10 ct - 0.25 ct, and earring style Stud / Minimalist.