Opals are one of the most mesmerising gemstones in the world; they are known for their remarkable “play of colour.” They have a kaleidoscope of hues that shine and shift with the movement of light. Known since ancient times, opals are highly valued in modern and traditional jewellery, often set into rings, earrings, pendants, and other fine pieces. But if you look into them, you might discover that they are not the same. When you buy opal, you may come across terms like solid opals, opal doublets, and opal triplets. Understanding what each means is important when it to making an informed and lasting investment in your gemstone collection.
Solid Opals
Solid opals are the most natural and valuable form of opals. It is a single uninterrupted piece of opal cut from the ground, shaped into a cabochon or gemstone. They are prized based on their purity, durability, and natural beauty. They have various types, including black opal, white opal, crystal opal, and boulder opal, each has its unique colour and origin. Many of them are found in renowned Australian opal fields like Lightning Ridge, Coober Pedy, and Queensland. At Cove Jewellery, we celebrate the unmatched beauty of these natural wonders with our exquisite collection of solid opal rings and pendants.
Opal Doublets and Triplets
In contrast, opal doublets have two layers with a thin slice of natural opal bonded to a backing material such as black potch, ironstone, or resin. This backing can enhance the colour contrast of the opal and allows jewellers to use thinner slices that would otherwise be too fragile on their own. Additionally, opal triplets go a step further with a third layer, which is a clear cap, typically made of glass or quartz, over the opal to protect it and magnify its colour.
Each of these opals has a different aesthetic and practical purpose, and the right choice depends on the budget, lifestyle, and taste.
Visual Difference and Identification Tips
Opal doublets, triplets, and solid opals have a similar appearance at first glance, but with careful observation, you may be able to reveal the key differences between them. One of the most noticeable visual distinctions is the side profile of the stone. A solid opal normally has a natural appearance all around. If you look at the edge of it, the colour continues seamlessly through the body, without any layered structure.
But opal doublets display a visible line of separation between the opal layer and its dark backing. From the side, you may be able to observe a clear contrast between the colourful top layer and the opaque backing material underneath. They also tend to be slightly thicker than triplets, with a more natural look but still showing signs of being layered.
Opal triplets have a domed, shiny surface that reflects light more like glass than gemstones. This glossy finish is due to the clear quartz or glass cap applied over the opal slice. When viewed from the side, you will see three distinct layers which are the clear cap, the opal slice in the middle, and the dark backing.
Quick Visual Cues to Remember:
- Solid opals are uniformly thick with no layering.
- Doublets have two layers and are less glossy on top. Check out our Australian opal doublets to see the vibrant colours for yourself.
- Triplets are glossy and domed, with visible layering.
If you have any doubts, examine the opals under good lighting conditions and consult a jeweller for confirmation, or go to an authentic jewellery boutique like Cove Jewellery for genuine opals.
Which Type of Opals are Best for You?
It is important to choose the right type of opal depending on your personal preferences, budget, and how you plan to wear or use it. If you are looking for long-term value, durability, and natural value, solid opals are the best choice out there. They are entirely natural and have no added layers, making them the most desirable and valuable option. Additionally, opals such as Australian black opals or white opals are ideal for fine jewellery and heirloom pieces.
But if you are seeking a more affordable alternative that can showcase the vibrant play of colour opals that they are known for, opal doublets are a great option. Doublets have a thin slice of natural opal adhering to a dark backing, which enhances the colour and gives a more vivid appearance. They are good for regular wear, but you need to be careful while using them and avoid water damage.
Furthermore, opal triplets are the most budget-friendly and are great for fashion jewellery. They have a protective, clear cap, which makes them sparkle more but also feel less like a natural gem. However, they can scratch or delaminate over time.
In Summary:
- Solid opals: best quality and longevity. Perfect for a timeless investment.
- Doublets: good balance of quality and cost.
- Triplets: affordable and flashy, but less durable.
Care & Maintenance
Opals are beautiful and delicate; they require mindful care to preserve their brilliance and longevity. Unlike harder stones like diamonds or sapphires, opals contain a significant amount of water (up to 20% according to the Gemological Institute of America) and are more vulnerable to scratches, cracking, or losing their lustre if not handled properly. But solid opals are more resilient compared to doublets and triplets, but all types should be treated gently. Doublets and triplets, which are layered, should be kept away from prolonged exposure to water or chemicals, as moisture can weaken the glue and cause separation.
Tips for Maintaining Your Opals:
- Avoid harsh chemicals: Remove opal jewellery before using cleaning products or swimming in chlorinated water.
- Don’t expose to sudden temperature changes: Extreme shifts can cause cracks (known as “crazing”).
- Clean with a soft, damp cloth: Avoid ultrasonic cleaners and abrasives.
- Store separately: Wrap in a soft cloth to avoid scratches from harder jewellery.
- Avoid soaking: Especially for doublets and triplets—moisture can get between the layers.
With proper care, opals can last for generations, retaining their captivating play-of-colour and natural charm. For more details, you can explore our guide to opal durability and care.
Conclusion
With their captivating beauty and variety, opals can be a unique gemstone that deserves thoughtful care. Whether you choose solid opals, a doublet, or a triplet, if you understand their characteristics, you can maintain their brilliance for a long time. With proper maintenance and mindful handling, your opal jewellery can remain a timeless and cherished part of your collection.
Why Buy Opal Jewellery From Cove Jewellery?
At Cove Jewellery, we pride ourselves on offering high-quality, ethically sourced opal jewellery that is both stunning and affordable. Our collections showcase vibrant colours, expert craftsmanship, and durability, making them a great choice for everyday wear or special occasions. Explore our extensive range of opal types and find the perfect piece that speaks to you.