Want to Know Whether a Diamond Is Real or Not? Read This

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La Marquise diamond jewelry set
Photo: Courtesy of La Marquise

No gemstone is as valuable and coveted worldwide as the diamond – but have you ever wondered how to determine if one was real or not? Savoir Flair reached out to the skilled experts at La Marquise for a quick and easy guide to figuring out if your stones are real or (sadly) not. Read on to see what they had to say.

Expert Eye

The preferred and most reliable way to determine whether a diamond is real or not is to take it to a known and experienced jeweler or gemologist who can give you a confirmed answer. You may also opt for an independent appraisal of your stone from a trusted authority to gain absolute confidence. However, there is a cost attached to this time-consuming process.

Buying diamonds that are certified is always recommended so that you don’t have to worry about getting them certified later. However, not all diamonds are certified, especially smaller ones. Solitaires usually carry certification, as do loose diamonds. Make sure your diamonds are certified by a trusted authority such as the GIA (Gemological Institute of America), IGI (International Gemological Institute), or HRD Antwerp.

Aside from certification, which does not come with all diamonds, it is always best to purchase stones from a reputed and trusted jeweler. At La Marquise, expert technicians and jewelers rely entirely on their experience and exposure to diamonds and other gemstones over the years to gauge the genuineness of a diamond.

La Marquise diamond ring
Photo: Courtesy of La Marquise

Visual Inspection

Experts are able to determine the genuineness of a diamond simply by looking at it through a loupe, a type of magnifying glass specifically used by jewelers. Through visual inspection, elements such as imperfections, luster, brilliance, and the fire of a diamond are checked.

One important indication of a fake stone is that it is too perfect. Most real diamonds have slight imperfections and inclusions that will be visible through a loupe. The way a diamond sparkles is the best indicator of a real diamond – this is referred to as the luster of diamonds, and diamonds will retain this luster over decades. The luster is more than that of most other stones, which makes it easy for an experienced jeweler to identify real diamonds.

There are two facets of sparkle in a diamond: brilliance and fire. Brilliance refers to the sparkle of gray and white inside the diamond, and fire refers to the rainbow sparkle that is reflected onto other surfaces from the diamond. If the rainbow sparkles are inside the stone, then it is generally not a diamond.

For the ordinary shopper, there is almost no way to confirm whether or not a diamond is real by just looking at it. There are a few tests you can conduct yourself that do not require any specific equipment, but these provide only an indicator of the stone’s genuineness. Experienced professionals who handle diamonds daily often use these methods as a source of confirmation after visual inspection.

La Marquise diamond ring
Photo: Courtesy of La Marquise

Read-Through Test

This is only possible with a loose diamond. You have to turn the stone over a piece of paper with some text, like a newspaper. If you’re able to read the letters through the stone, then it is not an authentic diamond. However, if you cannot read through the stone, then it could possibly be a real diamond. This is the case because real diamonds refract light, which prevents you from seeing anything clearly through them.

Fog Test

If you breathe lightly on a real diamond, the fog should disappear almost instantly. On a fake diamond, in contrast, the fog lingers for a while. This is because diamonds do not retain heat. To be 100 percent sure, however, get a trusted jeweler to inspect your diamond.

If you’re interested in diamonds, you’ll definitely want to read this.

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