Aquamarine Engagement Rings — Handcrafted in Hatton Garden, London

Serene, luminous, and unmistakably elegant, aquamarine is one of the most beloved gemstones in fine jewellery. Its soft, oceanic blue — ranging from the palest sky blue to a rich, deep teal — has captivated jewellers and gem lovers for centuries. Named from the Latin aqua marina, meaning “water of the sea”, aquamarine has long been associated with clarity, calm, and enduring love — making it a deeply meaningful choice for an engagement ring.

At Finediam, every aquamarine engagement ring in this collection is handcrafted in Hatton Garden, London — the UK’s most prestigious jewellery quarter, with over 300 years of goldsmithing heritage. Each ring is set with carefully selected aquamarines and finished in hallmarked precious metals, certified by the London Assay Office. Whether you are drawn to a classic aquamarine solitaire, a diamond halo design, or a vintage-inspired setting, our collection offers exceptional quality and craftsmanship at every price point.

Why Choose an Aquamarine Engagement Ring?

Aquamarine engagement rings have seen a remarkable rise in popularity among UK buyers in recent years — and it is easy to understand why. The stone’s cool, ethereal blue offers a striking and distinctive alternative to the conventional diamond solitaire, while its exceptional clarity and natural brilliance ensure it holds its own as a centrepiece gemstone.

Aquamarine belongs to the beryl family of minerals — the same family as emerald — and rates 7.5 to 8 on the Mohs hardness scale, making it a durable and practical choice for everyday wear. Its natural clarity is exceptional: aquamarines are one of the few gemstones that are routinely found in eye-clean quality, meaning inclusions are rarely visible to the naked eye. The result is a stone of remarkable transparency and depth, with a glassy, almost liquid quality that is unlike any other gem.

As the birthstone of March and a traditional gift for the 19th wedding anniversary, an aquamarine engagement ring carries genuine gemological and sentimental significance — a choice that is both beautiful and deeply personal.

Our Aquamarine Engagement Ring Collection

Finediam’s aquamarine engagement ring collection spans a wide range of styles, settings, and metals — from understated solitaires to elaborate halo and three-stone designs. All rings are available in your choice of hallmarked precious metals and can be customised to your preferred ring size and specification.

Styles Available:

• Aquamarine Solitaire — a single aquamarine as the centrepiece, allowing the stone’s colour and clarity to take centre stage; available in four-claw, six-claw, and bezel settings
• Aquamarine Halo Ring — a central aquamarine surrounded by a halo of pavé-set diamonds, amplifying the stone’s brilliance and visual presence
• Aquamarine with Diamond Shoulders — an aquamarine centre stone flanked by diamond-set shoulders for a glamorous, three-dimensional effect
• Aquamarine Three-Stone Ring — an aquamarine flanked by two diamonds or gemstones, symbolising the past, present, and future of a relationship
• Vintage-Inspired Aquamarine Ring — intricate milgrain detailing, floral motifs, and antique-style settings that complement the stone’s timeless, romantic quality
• Aquamarine Cluster Ring — multiple aquamarines and diamonds arranged in a decorative cluster for a bold, statement look

Browse our full range of engagement rings or explore our gemstone ring collection for further inspiration.

Aquamarine Colour, Cut & Quality

Not all aquamarines are equal — and at Finediam, we select only stones that meet our exacting quality standards. The most prized aquamarines display a vivid, medium-deep blue with excellent transparency and minimal inclusions. The finest specimens, known as Santa Maria aquamarines (originally from the Santa Maria de Itabira mine in Brazil), are celebrated for their intense, saturated blue colour — though exceptional stones are now also found in Mozambique and Zambia.

Aquamarines are most commonly cut in emerald cut and oval shapes, which showcase the stone’s natural clarity and depth of colour to best effect. Round brilliant, cushion, and pear cuts are also popular choices, each offering a different character and visual impact.

All aquamarines used in Finediam rings are independently assessed for colour, clarity, cut, and carat weight, ensuring complete transparency and confidence in your purchase.

Metals & Hallmarking

Every aquamarine engagement ring in this collection is crafted in hallmarked precious metals, certified by the London Assay Office — the oldest assay office in the world and the gold standard for precious metal certification in the UK. UK Hallmarking is your guarantee of metal purity, quality, and authenticity.

• 9K & 18K White Gold — the most popular choice for aquamarine rings; the cool, bright tone of white gold harmonises beautifully with aquamarine’s blue hues
• 9K & 18K Yellow Gold — a warm, classic metal that creates a striking contrast with the stone’s cool blue tones
• 9K & 18K Rose Gold — a romantic, blush-toned metal that pairs unexpectedly well with aquamarine’s serene blue
• 950 Platinum — the most prestigious and durable of all jewellery metals; naturally white, hypoallergenic, and exceptionally long-lasting

White gold and platinum are the most popular metal choices for aquamarine engagement rings, as their cool tones complement and enhance the stone’s natural blue colour. Yellow and rose gold offer a warmer, more distinctive contrast for buyers seeking something truly individual.

Customisation & Bespoke Aquamarine Rings

Every Finediam aquamarine engagement ring can be customised to your exact requirements. Choose your preferred metal, aquamarine size and shade, setting style, and ring size — or work with our Hatton Garden team to create a fully bespoke design from scratch.

Ring size customisation is available on all orders at no additional charge, and our complimentary resizing service ensures your ring will always fit perfectly. For personalised engravings, unique band designs, or one-of-a-kind commissions, please speak to our Hatton Garden team — we work with clients across the UK and worldwide to bring their vision to life.

Why Choose Finediam?

• Hatton Garden, London — handcrafted in the UK’s most prestigious jewellery quarter, with over 300 years of goldsmithing heritage
• Ethically sourced gemstones — independently assessed aquamarines with full provenance transparency
• UK Hallmarked — every piece certified by the London Assay Office, guaranteeing metal purity and craftsmanship
• Free UK delivery — fully tracked and signed for, with discreet, secure packaging
• Free worldwide delivery — insured and signed for, to over 100 countries
• 30-day hassle-free returns — shop with complete confidence
• Free resizing — complimentary ring size adjustments for the lifetime of your ring
• Thousands of verified reviews — trusted by customers across the UK and beyond

Serene. Luminous. Unmistakably Finediam.

Browse the collection below — or speak to our Hatton Garden team for personalised guidance, gemstone selection advice, and bespoke requests.