We're thrilled to bring you this stunning and highly sought after collector's quality Victorian antique engagement ring. It boasts a magnificent old mine cushion weighing an impressive 4.20 carats. Surrounded by a gorgeous halo of old mine cut diamonds. Crafted in 18k yellow gold with English marks for gold. Old mine cushion cut diamonds, especially larger ones like 4 carats with very high crowns and a chunky appearance, are truly rare and distinctive. Their unique characteristics, such as…