What is 18k Rose Gold? 24k Gold is 99.9 percent pure gold. Also known as "fine" gold. But 18k Rose Gold is an exquisite mixture of fine gold, silver and copper. A perfect combination of precious metals to create a beautiful one-of-a-kind Shanklin BowTie. Seventy-five percent fine gold, 3 % silver and 25 % copper. Beautifully Handcrafted. One-of-a-Kind. Perfect with any formal occasion!