Best Onyx Rings for Men of 2025

The Amberta Black Onyx Ring is a stunning accessory for the modern gentleman. Crafted from high-quality 925 sterling silver, it features a beautiful natural black onyx stone that adds a sophisticated touch to your look. This signet ring's timeless design makes it a fantastic gift for any occasion, ensuring your loved ones feel cherished. The eco-friendly packaging enhances the unboxing experience, making it perfect for those who appreciate the finer details.

The 555Jewelry Signet Ring features a striking design with a heavy-weight stainless steel body and an oval black onyx seal, making it perfect for everyday wear. You can easily dress it up or down, whether for casual outings or formal events, ensuring you always look your best. Crafted from 316L medical grade stainless steel, this ring is durable and hypoallergenic, providing comfort without irritation. Additionally, it arrives in a quality gift box, making it an ideal present for any occasion.

The Forge & Foundry Signet Ring offers a timeless accessory for men, known as 'The Gentleman's Ring'. Crafted from high-quality 316L stainless steel and polished onyx, this ring resists rust, corrosion, and tarnish, ensuring durability and long-lasting wear. Its waterproof and sweatproof features allow you to wear it worry-free, regardless of your activities. Expertly designed and forged at high temperatures, this ring reflects the craftsmanship of traditional steel forging, making it a unique addition to your collection.

The Black Onyx Signet Ring offers a striking design with its rectangular flat black onyx, creating a bold and masculine appearance. Made from oxidised .925 sterling silver, it ensures durability and style, making it a versatile accessory for any outfit. Its hypoallergenic properties mean that you can wear it comfortably without irritation, as it is lead-free and nickel-free. With a weight of approximately 8-9.5 grams, this ring is both lightweight and easy to wear, perfect for daily use or special occasions.

The WESTMIAJW Onyx Signet Ring features a striking natural black onyx gemstone, making it an eye-catching accessory for daily wear. Its vintage pattern design adds a unique touch, allowing you to express your personal style effortlessly. With its substantial size of approximately 23x20mm, it is perfect for making a statement. Crafted from durable 316L stainless steel, this ring will not rust or tarnish, ensuring it remains a lasting addition to your jewellery collection.

The Black Onyx Signet Ring by Old English Jewellers is a stunning piece crafted from quality 925 sterling silver. It comes with a Certificate of Authenticity, ensuring you receive a genuine product that complies with UK and International Hallmarking laws. Each ring is presented in an elegant Old English Jewellers branded gift box or luxury pouch, making it perfect for gifting. The natural onyx adds a touch of sophistication, while the rhodium overlay enhances durability and shine, ensuring you can wear this ring confidently for any occasion.

The Oidea Signet Ring features a striking black onyx stone set in a modern square design, making it an excellent choice for both men and women. This ring is not only a stylish accessory for everyday wear, but it also serves as a meaningful gift symbolising passion and beauty. Available in various sizes, it offers a comfortable fit for anyone. Made from durable stainless steel, this ring is resistant to discolouration and rust, ensuring it remains a cherished piece of jewellery for years to come.

The Bling Jewelry Signet Ring features a striking black onyx set in a heavy .925 sterling silver band, offering a timeless look that is both edgy and masculine. Its oval flat design makes it easy to pair with any outfit, ensuring you always look stylish. With a comfortable width of 5.3mm, it provides a secure fit for everyday wear. Crafted from high-quality, hypoallergenic materials, this ring is designed to last, making it a perfect gift for special occasions like birthdays and anniversaries.

The Bonlavie Celtic Knot Ring features a timeless design that symbolizes enduring love and unity, making it an excellent choice for meaningful occasions. Crafted from premium 925 sterling silver, this ring is hypoallergenic and nickel-free, ensuring comfort for those with sensitive skin. The 11mm square-cut Black Onyx gem adds a touch of elegance, while the generous 19mm ring face and 5mm band width provide a comfortable fit that stands out. This vintage piece is perfect for gifting on special days or simply treating yourself.

The JeweBella Signet Rings set includes three stylish rings made from durable 316L stainless steel. This material not only ensures strength and longevity but is also hypoallergenic, making them comfortable for daily wear. The classic combination of black and silver tones adds a timeless touch to any outfit, whether for casual or formal occasions. With a vintage minimalist design, these rings are perfect for expressing your personal style effortlessly.