Real Sapphire Rings Versus Fake

Four small Sapphire gem stones

Real sapphires are – unfortunately – very difficult to distinguish from fake sapphires. This doesn’t mean, however, that it’s impossible to discern whether the antique sapphire ring you just inherited is the real deal or an imposter.

Let’s take a look at a few ways you can test the validity of your sapphire.


The vast majority of fake sapphires are made out of a material called lead glass. This glass does pass the visual test, bearing a surprising resemblance to genuine sapphires. Glass does have some differences to sapphire in its properties that you can utilise to try and identify the material from which your stone was made.

Breathe out on your gemstone and count how long it takes for the stone to become clear again after being fogged up by your breath. A genuine sapphire will clear up very quickly, whereas glass – which retains moisture more effectively than sapphires do – will take longer to clear. If your stone takes perhaps five or six seconds to start to clear up, it could be made from lead glass.

Look Closer

Since lead glass is the most common material for sapphire fakes, there are a few ways of checking for the presence of glass. If you look very closely at your sapphire, you might see some bubbles within it; they could even be very small and difficult to spot with the naked eye. These bubbles are air pockets, and they’re a sure sign that what you’re looking at is glass. It is very difficult to create glass in the specific shapes of sapphires without generating at least some air bubbles in the process, although they can be very small.

Another thing to look for within the sapphire is white lines. These lines are essentially thread-like connectors that will appear to be holding the stone together. If these are present in your gemstone, unfortunately, it is likely because it is holding the stone together, and what you have is not a genuine sapphire but a composite sapphire.

Antique Sapphire and diamond cluster ring

Real Sapphires

While the breath test and the presence of air bubbles are ways of determining if a sapphire is a fake, here are a few ways of knowing if it’s real. In a dark room, use a direct light to shine on your gemstone. A sapphire will reflect blue light, appearing to sparkle with blue colours. Glass, however, will sparkle and reflect a variety of colours. While the rainbow-style sparkle is very visually appealing, unfortunately, it may be a sign you don’t have the genuine article.

The term ‘real’ when used to describe sapphires is something of a misnomer since there are sapphires that aren’t naturally formed in the ground that are still considered to be real. These sapphires are created in a lab by scientists, but their properties are still the same as sapphires that are mined from the ground. Some people are put off by these lab-created sapphires, finding them too ‘perfect’. Genuine sapphires that have minor chips or scratches here and there are often more valued than lab-created sapphires that have no flaws.

The Best Way

Without a doubt, the absolute best way to establish whether or not your sapphire is real or fake is to take it to a professional. Jewellers might be able to give you some information, but a gemmologist with proper certification can give you a plethora of information about whether your sapphire is real or not, as well as what the quality of the stone is if it is the genuine article.

When buying sapphires, it’s important to buy responsibly. Most quality jewellery shops will sell their jewellery with proper certification, confirming that you are getting what you pay for when it comes to luxury jewellery like sapphire jewellery.

Armed with this knowledge, you can do your best to identify any sapphires you come across. Good luck with your examinations; you never know – you might just end up finding a new passion!

*This is a collaborative post*

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