How to check if Emerald is Treated or Not?

Many "emeralds" are actually other green gems, green glass, or fakes made of a variety of materials. Perform numerous tests before deciding one way or the other, as results aren't always conclusive without expert gemology equipment. If you're interested in buying natural emerald gemstone, you might want to see if it's a natural gem or a lab-created construct.

1. Using a magnifying lens or a jeweler's loupe - Examine the stone under magnification, ideally with a jeweler's loupe with a 10x triple-lens. Hold it so that light strikes it at an oblique angle, preferably in a single narrow beam. If the stone has minor faults or uneven patterns, it is most likely a genuine gem, though not necessarily an emerald. It's possible that your gem is a synthetic emerald as when you buy emerald online (man-made yet real), or that it's not a gemstone at all, if it's exceptionally clear and has nearly none of these "inclusions."

2. Look for a glistening finish. Real emeralds have little to no "fire," or bright bursts of colour when exposed to light. If your jewel flashes like a rainbow, it's not an emerald.

3. Look at the colour. If the mineral beryl is dark green or blue-green, it is called emerald. Heliodor is the name given to yellow-green beryl, while light green beryl is simply referred to as green beryl. Olivine or green garnet are examples of yellow-green gems.

4. Examine the facets for signs of wear. Glass and other brittle materials degrade rapidly. If the facets' edges appear soft and worn, the gem is most likely artificial. Fake glass "gems" frequently have a dimpled "orange peel" feel with slightly rounded facet edges. Look for these characteristics with a magnifying glass.

5. Make sure there are no layers. Imitation gems known as "Soudé" are made up of two or three layers of different materials, with a green layer sandwiched between two colourless stones. If the stone isn't mounted, soaking it in water and looking at it from the side will reveal these layers. In a mounted stone, it's more difficult to observe this, but you can look for unusual colour changes around the girdle.

6. Using a dichroscope, look at the emerald if you have bought it from any panna stone online. Some gemstones appear to be different colours when viewed from different angles, but you'll need a dichroscope to see this. While looking through the viewing window, hold the gemstone close to one end of the dichroscope. A powerful, diffuse light source that is as white as possible, such as an overcast sky, must illuminate the gemstone. To see the gemstone from all angles, rotate the dichroscope and the gemstone. Dichroic emeralds seem blue-green from one perspective and a somewhat yellow green from another.

7. Be wary of low-cost options. Trust your intuition if an offer appears too good to be true. A natural, brilliantly green emerald with a beautiful sheen normally costs a lot depending upon the country. You're probably looking at glass or crystal, not emeralds, if the price appears suspiciously low.

8. Arrange for the stone to be evaluated. If you're still unsure, take the gemstone to a jeweller and have it assessed properly. The jeweller for example Brahma gems who provides best quality stones will be able to use sophisticated tools to provide you with a definitive response as well as a detailed description of your gemstone.

OTHER TESTS:

1. Take a look at the inclusions. In comparison to the many minor faults seen in genuine emeralds, early synthetic emeralds featured very few inclusions. [16] Although later procedures produced additional inclusions, some inclusions are exclusively seen in natural emeralds. If feasible, look for these with a gem microscope or a jeweller’s loupe:

• You have a natural emerald if you observe a "pocket" in the gem that contains both gas bubbles and crystals. A "three-phase inclusion" is what this is referred to as.

• Some crystals can only be found in natural emeralds: pyrite crystal cubes, mica flakes, or bamboo-like green actinolite threads

2. Use a blacklight to illuminate the emerald. You'll need a "long wave" blacklight for this test, which is the cheapest and most widely accessible type. Place your emerald in a dimly lit or darkly lit area. Watch the hue of the fluorescence when you shine the blacklight on the gem.

TIP: 

• A gem refractometer is a great instrument for identifying gemstones, but it can be costly and difficult to use if you aren't familiar with it. If you can, see if the gemstone has a refractive index of 1.565 to 1.602, which is the range for natural emeralds. Also, make sure the birefringence (double refraction) is close to 0.006. Synthetic emeralds typically have a birefringence of 0.006 or less, and a refractive index of 1.561 to 1.564, though it can be as high as 1.579. The stone is most likely phoney if the findings fall significantly outside of these ranges.