Why Choose an Opal Engagement Ring? Styles, Meaning and Buying Tips

An opal engagement ring is a good option for someone who wants something a little different from the usual diamond centre stone. Opals have their own character, with flashes of colour that can look different depending on the light and the stone. For an Australian couple, an opal can also feel especially fitting because Australian opals are closely associated with the country’s jewellery and gemstone history.

But choosing an opal ring is about more than its appearance. The type of opal, ring setting, gold colour, lifestyle and care requirements all deserve some thought before buying.

Why choose an opal for an engagement ring?

Diamonds have long been the traditional choice for engagement rings, but they are not the only option. An opal gives you a chance to choose a centre stone based on colour and character rather than following a standard engagement-ring style.

Every natural opal can have its own pattern and colour play. Some show flashes of blue and green, while others can display warmer tones. This means two opal rings with similar settings can still look quite different.

Opal also works well with different types of jewellery design. A simple gold setting can keep the gemstone as the main focus, while small diamonds or other gemstones can be added for extra detail.

Purple May's opal collection includes several styles in 18K gold, including classic rings, open rings, stackable designs and an opal ring set with sapphire. The collection also includes different gold colours, giving shoppers more choice when deciding on the overall look.

What does an opal symbolise?

The meaning attached to gemstones can vary between cultures and personal traditions, so it is best to treat gemstone symbolism as a personal choice rather than a fixed rule.

Opals are often associated with individuality because of their changing colours and patterns. For an engagement ring, that idea can make sense. The ring marks a relationship that is personal to two people, and choosing a gemstone that looks different from one ring to the next can make the piece feel more personal.

Opal is also the birthstone associated with October, which may make it an appealing choice for someone born in that month.

For many buyers, though, the simplest reason is enough: they like the way the stone looks.

Opal engagement ring styles to consider

There is no single style that works for every opal. The setting can change how much attention the stone receives and how practical the ring feels for everyday wear.

Simple opal solitaire

A simple setting puts most of the attention on the centre stone. This can work well if you like jewellery that feels clean and uncomplicated.

A gold band with an oval or round opal can create a classic shape without relying on a large number of surrounding stones.

Opal and diamond designs

If you like the colour of opal but still want some of the sparkle associated with a traditional engagement ring, a combination of opal and diamonds is worth considering.

Purple May's Chloe II is an example of this approach. It combines an opal with diamonds in an 18K gold ring and is available in rose, yellow and white gold.

Opal and sapphire

Opal does not have to be paired with diamonds. Sapphire can bring a deeper colour contrast to the design.

Purple May's collection includes the Clover 18K Opal Sapphire Ring, giving an example of how a second coloured gemstone can be used alongside opal.

If you already like sapphire rings, an opal and sapphire combination may be worth considering if you want two different gemstone colours in one ring.

Open and stackable designs

An open ring or stackable design can give the ring a less traditional appearance. These styles may also appeal to people who enjoy wearing several rings together.

Purple May currently lists both an opal open ring and an opal stackable ring within its collection.

Which gold colour should you choose?

The same opal can look quite different depending on the metal around it.

Yellow gold gives the ring a warmer appearance and can create a strong contrast with lighter opals.

Rose gold has a softer pink tone and can give the gemstone a warmer overall feel.

White gold creates a cleaner, cooler appearance and lets the colours in the opal take more attention.

There is no universal right answer here. Look at the colours that you already wear in your other jewellery. If most of your rings and bracelets are yellow gold, choosing the same metal can make a new engagement ring easier to wear with the rest of your collection.

What should you check before buying an opal engagement ring?

Buying an opal ring requires a little more attention than simply choosing a shape you like.

Look closely at the opal

Pay attention to the stone's colour, pattern and play of colour. Natural opals can vary considerably, so it is worth looking at the actual stone rather than relying only on a general description of opal.

Ask about the type and origin of the opal if those details are important to you.

Purple May states that its opals are natural Australian opals and identifies sources including Lightning Ridge, Coober Pedy and Queensland. The collection also notes that authenticity certificates are provided for stones over 2ct.

Consider the setting

Think about how the opal is held in place and how much protection the setting provides around the stone.

If you plan to wear the ring frequently, a setting that suits your day-to-day routine is worth considering. Someone who works with their hands, for example, may have different requirements from someone who mainly wears their engagement ring for social occasions.

Choose the right ring size

An engagement ring should feel comfortable enough for regular wear. If you are buying the ring as a surprise, finding the correct size can be tricky.

Borrowing a ring that your partner already wears on the same finger can help, but remember that finger sizes can vary from one hand to the other.

If you are choosing the ring together, trying different sizes in person is the simplest approach.

How does an opal compare with other engagement-ring gemstones?

The best gemstone depends on the look and practical qualities you want from the ring.

A diamond is known for its hardness and strong sparkle. Sapphire is another popular choice and is also harder than opal.

Opal has a different appeal. Its colour play is the main attraction, rather than the sharp sparkle associated with a diamond. This makes it a good option for someone who wants a gemstone with a softer and more varied appearance.

An opal ring can also feel more connected to Australian jewellery culture, particularly when the stone is an Australian opal.

If you are considering an opal engagement ring alongside a traditional diamond or another coloured gemstone, compare the stones in person if possible. Seeing them side by side can make the differences in colour and appearance much easier to judge.

Can an opal engagement ring be worn every day?

It can be worn regularly, but opal needs sensible care.

Purple May recommends cleaning opal jewellery with mild soap, lukewarm water and a soft cloth. The brand also advises avoiding ultrasonic cleaners, harsh chemicals and sudden temperature changes. Its care guidance recommends removing opal jewellery before swimming, showering or applying cosmetics and storing pieces separately in a soft pouch.

That does not mean you have to keep your ring hidden away. It simply means you should be aware of the gemstone's care requirements before choosing it as an everyday ring.

If you want a ring that can be worn constantly with very little thought about care, it is worth comparing opal with harder gemstones before making your decision.

What other rings can you wear with an opal engagement ring?

The wedding band is another part of the decision that is easy to overlook.

A simple gold band can keep attention on the opal. A shaped band may work better if the engagement ring has a larger or unusual setting.

You can also think about the jewellery you already own. If your everyday pieces include coloured gemstones, a plain gold wedding band ring may give you more flexibility.

For couples who want their rings to feel connected, a matching couple ring style can also be considered, although your engagement ring and wedding band do not need to match exactly.

The key is to check how the two rings sit together. A band that looks great on its own may not sit comfortably beside a particular engagement-ring setting.

Is an opal engagement ring right for you?

An opal ring makes sense if you like colour, unusual gemstones and jewellery that has a little individuality. It is also worth considering if you have a connection with Australia and like the idea of choosing an Australian gemstone.

If you want to see different settings and gemstone combinations before making a decision, you can explore the [Purple May opal ring collection] to compare the available styles, including 18K gold designs and rings featuring opal with other gemstones.

Before buying, focus on the stone itself, the setting, the metal colour, the ring size and how you plan to wear it. Those details will tell you much more about whether an opal engagement ring is a good fit than a trend or a standard engagement-ring rule.

An engagement ring should feel right for the person wearing it. If an opal's changing colours and individual character are what catch your eye, there is no reason to choose a diamond simply because it is traditional.