Engagement Rings in White or Yellow Gold - 18K

The most sought-after engagement ring styles are solitaire, halo, trilogy, coloured gemstones and modern designs such as east-west or marquise.

• Solitaire: a central diamond in a prong setting, with a classic, timeless design, perfect for anyone looking for an understated yet deeply symbolic ring.
• Halo: a central diamond surrounded by smaller stones, creating greater visual impact and making the centre stone appear larger.
• Trilogy: three stones representing the past, present and future, with a strong symbolic meaning.
• Coloured gemstones: sapphire, ruby, emerald or other gemstones for a distinctive character and a touch of colour.
• East-west / marquise: horizontally set stones or elongated, pointed marquise cuts, a current trend for those seeking more modern lines.

18K gold can be yellow, white or rose; the best choice is the one that suits her style and enhances the sparkle of the diamond or centre stone.

18K gold contains 75% pure gold, blended with other metals to ensure durability and a lasting shine for everyday wear. Each colour has its own character and complements different styles:

• 18K Yellow Gold Engagement Rings: a timeless classic, with a warm glow that complements both fair and darker skin tones, perfect for those who appreciate tradition.
• 18K White Gold Engagement Rings: modern and understated, creating a perfect contrast with diamonds and pairing well with silver-toned watches and jewellery.
• 18K Rose Gold Engagement Rings: romantic and soft, ideal for a delicate look and a popular contemporary choice.

For added sophistication, also consider diamond engagement rings, available in all colours of 18K gold, with combinations that enhance the sparkle of the centre stone or multiple stones in halo or pavé settings.

To choose the perfect engagement ring, take note of her style, choose the right metal, check her ring size and consider the emotional significance of the proposal.

Start by considering the bride-to-be’s personal style and personality: whether her everyday look is more classic, modern, minimalist or maximalist. Explore current trends — solitaire rings, vintage-inspired designs, chunky rings or coloured gemstones — while keeping in mind what she truly enjoys wearing. Identify her preferred metal (yellow or white gold) by looking at the jewellery she already owns. Think about the sentiment you want the proposal to convey, too: something more traditional and understated, or a ring that makes a bold visual statement. Check the correct ring size (you can refer to our Size Guide) and finish with a small but meaningful personal touch by engraving names, dates or a special message inside the band.

Use a ring she already owns, ask someone you trust for help or try the string-and-ruler method to find out her ring size without spoiling the surprise.

Finding the right size without raising suspicion may seem challenging, but there are several discreet and effective methods that ensure accuracy. The simplest approach is to use a ring she regularly wears on her ring finger — take it to one of our BlueBird stores, and our team will measure it on the spot. If you cannot access one directly, ask a close friend or trusted family member who could temporarily “borrow” one of her rings. Another practical option is the string-and-ruler method: wrap a thin piece of string around her finger while she is asleep or distracted, mark where the ends meet, measure it with a ruler and compare the measurement with our size guide. For complete peace of mind, all our jewellery comes with free size exchanges within 60 days of purchase.

A surprise is romantic, while choosing together offers confidence in the style and size; a combined approach balances emotion and certainty.

The big dilemma when planning a proposal is deciding whether to keep the element of surprise or involve your partner in the choice. A surprise preserves the romance of an unexpected moment, but carries the risk of choosing the wrong size, style or gemstone; it works well when you know her taste and have discreet support from friends or family. Choosing together ensures the ring is exactly what she wants in terms of design, size and gemstone, removing doubts and creating a shared memory from the start. A combined approach is becoming increasingly popular: you choose the metal (white, yellow or rose gold) and set the budget, while she helps select the design and gemstone, keeping an element of surprise in the final result.

The 4Cs of a diamond — cut, colour, clarity and carat — define its sparkle, colour, clarity and weight, influencing its beauty and price.

A good cut is the most important factor for sparkle; colours between G and H maintain a colourless appearance while offering good value for money; clarity grades VS2–SI1 ensure inclusions are difficult to see with the naked eye; and the carat weight should suit your budget and desired style.

Clean your ring regularly, avoid chemicals and impacts, and store it in a suitable jewellery case to preserve its shine and keep the stone secure.

Clean your ring with a soft cloth and warm water with mild soap, rinsing and drying it thoroughly before wearing it again. Avoid contact with chemicals, swimming pools, seawater and physical impacts during activities such as gym workouts or heavy housework. Store your ring in a lined jewellery case or velvet pouch, separately from other jewellery to prevent scratches. Have it professionally inspected from time to time to check the settings, prongs and overall condition.

Does an engagement ring have to feature a diamond?

No; an engagement ring can feature a diamond or other gemstones, as long as it reflects the couple’s style and story.

Not necessarily. Although diamonds are the most traditional choice for their sparkle and durability, sapphires, rubies, emeralds and other gemstones are elegant, meaningful alternatives, each with its own unique character. The choice should reflect her style and the message you want to convey, creating a truly special and personal ring for this unforgettable moment.

How much should an engagement ring cost?

There is no fixed amount; the best approach is to set a realistic budget and choose the best combination of materials and design within it.

The famous “three months’ salary” myth originated in advertising campaigns in the 1930s and has no real basis or grounding in tradition. The ideal amount is one that allows you to offer a quality piece within your budget, whether an elegant design with a smaller diamond or a more striking coloured gemstone. BlueBird offers options for every budget, from affordable designs to premium pieces, always with certification and a quality guarantee.

How can I find out her ring size without her knowing?

Use a ring she already owns, ask someone close to her for help or try the string-and-ruler method to estimate her size.

There are several discreet and effective methods: use a ring she wears regularly as a reference, ask a close friend or trusted family member for help, or try the string-and-ruler method at night while she sleeps. BlueBird also offers a ring size exchange guarantee within 60 days of purchase, giving you complete peace of mind if a different size is needed for the perfect fit.

Can an engagement ring be personalised?

Yes; messages can be engraved inside the band and, for some designs, the design, metals and gemstones can also be customised.

Yes, all engagement rings can be personalised with an engraving inside the band, whether a name, a special date, initials or a symbol with a unique meaning for the couple. Some models also allow changes to the design, combinations of metals or the selection of specific gemstones. Products eligible for personalisation are clearly marked on their product pages, and the service ensures an impeccable, discreet finish.

Natural or lab-grown diamonds: which should you choose?

Lab-grown diamonds offer sparkle and durability comparable to natural diamonds, at a more affordable price and with a more sustainable origin.

Lab-grown diamonds offer the same quality as natural diamonds in terms of sparkle, clarity and durability, but cost less and are produced more sustainably, without compromising the beauty of the piece. Both can be certified by independent laboratories such as GIA or IGI, making the final choice a matter of personal values, available budget and ethical preferences.

White or yellow gold for an engagement ring?

White gold is modern and creates contrast with diamonds; yellow gold is classic and warm, complementing gold-toned jewellery.

White gold creates a perfect contrast with diamonds and offers a modern, understated look, pairing well with silver-toned jewellery and watches; yellow gold is a timeless classic, with a warm glow that complements both fair and darker skin tones. If she tends to wear gold-toned pieces every day, yellow gold makes perfect sense as a natural extension of her style; if she prefers neutral, contemporary tones, white gold fits in perfectly.

Where can I buy engagement rings in Portugal?

You can buy BlueBird engagement rings at 14 physical stores in Portugal or online at bluebird.pt with secure delivery.

Visit one of the 14 BlueBird stores in mainland Portugal (Norte Shopping, Centro Colombo, Braga Parque, Mar Shopping, Arrábida Shopping, Gaia Shopping, 8ª Avenida, Palácio do Gelo, Leiria Shopping, Alma Shopping, Algarve Shopping, Nosso Shopping, UBBO, Arena Shopping) to try on the designs in person, or shop online at www.bluebird.pt with fast, secure delivery. Use the store locator to find your nearest store.

How do I buy an engagement ring at BlueBird?

Set a budget, choose the style and metal, confirm the ring size and get support from the BlueBird team in-store or online.

Choosing the perfect engagement ring may seem challenging, but BlueBird makes the whole process simple. Start by setting a realistic budget that balances emotion with financial investment. The team will then show you all the options suited to her taste and personality — classic solitaire, halo, trilogy and pavé rings, or coloured gemstones. Choose between 18K yellow, white or rose gold, and confirm her size by bringing one of her rings or using the size guide. BlueBird is here to make this decision memorable and stress-free.

Which gemstone should I choose besides a diamond?

Sapphire, emerald, ruby and aquamarine are popular alternatives to diamonds, each with its own meaning.

Beyond the traditional diamond, there are gemstones with unique and special meanings for engagement rings. Sapphire symbolises fidelity and wisdom, making it an elegant and meaningful choice. Emerald, with its intense green hue, represents love, hope and renewal. Ruby, with its vibrant red colour, evokes passion, courage and eternal love. Aquamarine, with its soft blue hue, conveys tranquillity, harmony and clarity. Each gemstone carries its own message — choose the one that best reflects the couple’s love story.

What is a certified diamond ring? What does GIA/IGI mean?

It is a ring whose diamond has been assessed by an independent laboratory, with a GIA or IGI report documenting its carat weight, colour, clarity and cut.

A certified diamond ring comes with an official assurance of the quality of that individual diamond, assessed by an independent laboratory that issues a comprehensive report detailing its carat weight, colour, clarity, cut and other essential characteristics. GIA (Gemological Institute of America) and IGI (International Gemological Institute) are two of the world’s most recognised laboratories. A diamond with a GIA or IGI certificate stands for complete transparency, trust and the stone’s true value. These reports mainly apply to rings with diamonds over 0.40 carats.