Opal Diamond Rings – Iridescent Beauty, Hatton Garden Crafted

No two opals are alike. With their ever-changing play of colour — shifting from electric blue to fiery orange to deep violet depending on the light — opal is one of the most captivating and individual gemstones in the world. At FineDiam, our opal diamond rings celebrate this extraordinary quality, pairing the iridescent beauty of white opal with the brilliance of carefully selected diamonds, all handcrafted in our Hatton Garden, London workshop.

Whether you are looking for an opal engagement ring, a statement cocktail ring, or an opal and diamond eternity band, our collection offers a range of designs for those who want something genuinely distinctive. Each ring is UK hallmarked by the London Assay Office and crafted to the exacting standards that Hatton Garden is renowned for.

What Makes Opal So Special?

Opal is the only gemstone that displays play-of-colour — a phenomenon where light diffracts through the stone’s internal silica structure, producing a shifting, rainbow-like display that changes with every movement of the hand. No two opals display exactly the same pattern, which means every opal ring from FineDiam is, in the truest sense, one of a kind. White opal, the variety we use in our collection, offers a luminous, pale body tone that allows the play-of-colour to dance across the surface with particular brilliance when set alongside diamonds.

Our Opal Diamond Ring Styles

Opal Halo Engagement Rings

A white opal centre stone surrounded by a halo of brilliant-cut diamonds — one of the most striking combinations in fine jewellery. The diamond halo amplifies the opal’s natural luminosity while adding the sparkle and structure that makes this style a genuine alternative to a traditional diamond halo ring. Available in white gold and platinum.

Opal & Diamond Eternity Bands

Alternating opal and diamond stones set continuously around the band, creating a ring with colour, brilliance, and movement in equal measure. Our opal and diamond eternity bands make a beautiful anniversary gift or a distinctive wedding band for brides who want something beyond the traditional.

Opal Solitaire Rings

A single opal stone, set simply and elegantly to allow the gemstone’s natural beauty to take centre stage. Our opal solitaire rings are available in a range of settings — from classic four-prong to bezel settings that offer maximum protection for the stone — in 9K and 18K gold and platinum.

Opal & Diamond Side Stone Rings

An opal centre stone flanked by diamond side stones — a design that draws the eye to the opal while adding the brilliance and structure of diamonds on either side. A refined, elegant choice that works beautifully as both an engagement ring and a dress ring.

Caring for Your Opal Ring

Opal is a relatively soft gemstone (6.5 on the Mohs scale) and requires a little more care than harder stones such as diamonds or sapphires. We recommend removing your opal ring before swimming, cleaning, or any activity that involves harsh chemicals or impact. Clean gently with a soft, damp cloth and store separately in a soft pouch. With proper care, an opal ring will retain its extraordinary play-of-colour for a lifetime. Our team is always on hand to advise on care and maintenance.

Metal Options & Diamond Choices

Our opal diamond rings are available in 9K white gold, 18K white gold, 18K yellow gold, 18K rose gold, and platinum. Each ring can be set with natural or lab-grown diamond accents, all IGI or GIA certified. Every piece is UK hallmarked by the London Assay Office, guaranteeing the highest standards of metal purity and craftsmanship.

Why Choose FineDiam?

At FineDiam, every opal ring is handcrafted in Hatton Garden by expert jewellers who understand that a gemstone as individual as opal deserves a setting of equal distinction. We offer free UK delivery, a 60-day return policy, free ring resizing, and a 6-month quality guarantee on every piece. Our bespoke design service allows you to work directly with our jewellers to create an opal ring that is entirely your own — choosing your opal, your metal, and your setting style.

Explore our full range of gemstone rings and diamond engagement rings to discover more of what FineDiam has to offer.

Find Your Perfect Opal Ring Today

Rare, radiant, and entirely your own — shop our opal diamond ring collection today and find a ring as unique as the love it represents.