Cosmetic World is located at 2825 S Diamond Bar Blvd, Diamond Bar, CA. This business specializes in Cosmetics. Cosmetic World is open Mon, 10am-8pm; Tue, 10am-8pm; Wed, 10am-8pm; Thu, 10am-8pm; Fri, 10am-8pm; Sat, 10am-8pm; Sun, 10am-8pm and accepts All Major Credit Cards, American Express, Cash, Discover, Mastercard and Visa.