This retro flat square black glass onyx ring for men is a classic metal designer piece that is handmade. The ring features a black onyx main stone with a stainless steel metal base, making it durable and suitable for everyday wear. The ring is perfect for special occasions like Father's Day and is signalled with a retro theme. With a total carat weight of 2.00 ctw - 4.99 ctw, this ring is both stylish and quality-made, offering a timeless appeal for any man's jewellery collection.