United Kingdom Size 45mm Medium Drop to US: 20G Delicate Stud

United Kingdom Size 45mm Medium Drop: Features a post thickness of 0.8 $\text{mm}$ (0.0315 $\text{in}$), hoop inner diameter of 0 $\text{mm}$, drop length of 45 $\text{mm}$, gemstone carat equivalence of 1.00 ct Gemstone, and earring style Drop / Classic Dangling.

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.