Ross-Simons - Plain - 18kt Gold Vermeil Oval Signet Ring Size 7. RS Pure. Modern designs that complete your outfit and complement your personality. Make your mark with our handcrafted 18kt gold vermeil oval signet ring. Our vermeil jewelry is the highest quality available and is crafted with a thick layer of real 18kt gold over sterling silver, perfect for daily wear and long-lasting shine. Made in Italy. 3/8" wide. 18kt gold vermeil personalized oval signet ring.