How Do I Know If My Moissanite Is Real

How Do I Know If My Moissanite Is Real?

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Moissanite, an exquisite gemstone often chosen as an alternative to diamonds, has gained significant popularity for its brilliance, durability, and affordability. However, as the demand for moissanite continues to rise, it becomes crucial to understand how to authenticate the gemstone in your possession. In this informative article, we will explore various methods to help you determine the authenticity of your moissanite, ensuring you make an informed investment.

What is Moissanite?

Moissanite, a naturally occurring mineral composed of silicon carbide, was initially discovered in a meteor crater by scientist Henri Moissan in 1893. Renowned for its exceptional brilliance and fire, this gemstone closely resembles diamonds, making it a preferred choice for engagement rings and various other forms of jewelry.

How Do I Know If My Moissanite Is Real?

Verify the Certification

To ensure the authenticity of your moissanite, begin by obtaining a certification from a reputable dealer, issued by a recognized Gemological laboratory. This certification explicitly identifies your stone as moissanite, distinguishing it from diamonds and other gemstones.


Visual Examination

A visual examination serves as one of the primary steps in determining the authenticity of your moissanite. Consider the following factors during this evaluation:

Brilliance and Sparkle: Moissanite exhibits exceptional brilliance and sparkle, thanks to its high refractive index. It beautifully reflects light, creating a mesmerizing play of colors resembling a rainbow.

Color: Typically, moissanite appears colorless or near-colorless. However, some stones may display a slight yellow or green hue. If your stone exhibits intense color or a brownish tint, it may indicate that it is not authentic.

Double Refraction: Moissanite possesses a higher double refraction compared to diamonds. When looking through a moissanite gemstone, you may notice a doubling effect or slight blurriness at the edges.

Fire: Moissanite has a remarkable ability to disperse light, resulting in vivid flashes of spectral colors. If your stone displays vibrant flashes, it is likely authentic moissanite.

Utilize a Tester for Enhanced Authenticity

A diamond tester is a portable device specifically designed to differentiate between diamonds and other gemstones. This tool operates based on the fact that various gemstones conduct heat at different rates. Here’s how to use a moissanite tester effectively:

Testing Process: The tester features a heated metallic tip that is placed on the cool surface of the diamond or moissanite, cubic zirconia (CZ), or any other test material. By analyzing the heat transfer rate through the stone, the tester determines whether it is a diamond or moissanite.

Interpreting Results: Observe the instrument’s reaction closely. If more than nine lights remain illuminated and accompanied by a beep, it indicates a genuine diamond or moissanite. Conversely, if the total number of bright diodes is less than nine, and the instrument remains silent, it signifies a counterfeit or imitation.

Click here to learn more about how to use a diamond tester


Determining the authenticity of your moissanite gemstone is essential to ensure a wise investment. By considering visual examination, utilizing moissanite testers, and obtaining professional gemological testing, you can confidently identify whether your moissanite is real. In case of uncertainty, consulting a reputable jeweler or gemologist will provide you with expert guidance.


Q: Can moissanite be mistaken for a diamond?

A: Yes, due to its similar optical properties to diamonds, moissanite can be challenging to differentiate without proper testing.

Q: How durable is moissanite?

A: Moissanite boasts exceptional durability, ranking high on the Mohs scale of hardness. It is resistant to scratches, making it ideal for everyday wear.

Q: Can I clean my moissanite jewelry with regular cleaning solutions?

A: Yes, you can clean your moissanite jewelry using mild soap and water or commercial jewelry cleaning solutions.

Q: Does moissanite lose its sparkle over time?

A: No, moissanite retains its brilliance and sparkle over time, ensuring it remains a dazzling gemstone option.

Q: Can moissanite be used in engagement rings?

A: Absolutely! Moissanite is a popular choice for engagement rings, renowned for its beauty, durability, and affordability.

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Ring Size Guide

ring size guide
ring size guide

This is a chart that will be extremely helpful for you to determine the ring size that you need. You can either make use of a tape or a small piece of string to measure the area that will be occupied by the ring. When it becomes a complete circle, make a mark on such string. This will be helpful for you to compare with the chart that is mentioned below.

Inside Dia. Inside Circ. Size
14.1 44.2 3 F 44 4.25
14.5 45.5 3.5 G 45.5 5.5
14.9 46.8 4 H 47 6.75
15.3 48 4.5 I 48 8
15.7 49.3 5 J-1/2 50 9.25
16.1 50.6 5.5 K-1/2 51 10.5
16.5 51.9 6 L-1/2 52 11.75
16.9 53.1 6.5 M-1/2 53 13.25
17.3 54.4 7 N-1/2 54 14.5
17.7 55.7 7.5 O-1/2 56 15.75
18.1 57 8 P-1/2 57 17
18.5 58.3 8.5 Q-1/2 58 18.25
19 59.5 9 R-1/2 60 19.5
19.4 60.8 9.5 S-1/2 61 20.75
19.8 62.1 10 T-1/2 62 22
20.2 63.4 10.5 U-1/2 63 23.25
20.6 64.6 11 V-1/2 64 24.75
21 65.9 11.5 W-1/2 66 26
21.4 67.2 12 X-1/2 67 27.25
21.8 68.5 12.5 Z 68 28.5
22.2 69.7 13 Z+1 70 29.75
22.6 71 13.5 Z+1.5 71 31
23 72.3 14 Z+2 72 32.25
23.4 73.5 14.5 Z+2.5 73.5 33.5
23.8 74.8 15 Z+3 75 34.75

Other Tips

1) Measure your finger in warm temperatures at the end of the day.

2) If your knuckle is a lot larger than the base of your finger, measure both the base of your finger and your knuckle and select a size between the two.

3) When considering a wide band, move up a size from your measurement, for comfort’s sake.