How to evaluate blue topaz

Blue topaz is one of the most popular types of topaz because of its beautiful color, which ranges from light sky blue to dark sapphire color. If you want to buy topaz jewelry, you must learn how to evaluate a blue topaz. The following are some instructions.
1. Let’s start with the color of the blue topaz. Color is one of the factors that influence the quality of blue topaz. Generally speaking, blue topaz in darker and purer color is more valuable. And an ideal blue topaz should be in deep, clear turquoise color that reminds people of the ocean instantly. But some people prefer topaz in light blue and are happy to wear light blue topaz.
2. Next let’s talk about the clarity of the stone. As we know, clarity is the most important factor that influences the brilliance of the diamond. But when it comes to blue topaz, the clarity is not that important. This is because the inclusions and other flaws in colored stone don’t impair its appearance very much.
3. The cut is one of the major factors that influence the value of blue topaz. Blue topaz is relatively hard and thus easy to cut and shape. Therefore, you can find blue topaz in various cuts. Among them, a round, entirely smooth surface or complicated shapes like heart are more expensive.
4. The surface of the blue topaz should be taken into consideration. The surface of gemstone decides on its ability to reflect light. Therefore, blue topaz with flawless and smooth surface is much more valuable.
5. At last, the carat weight. Like diamonds and other gemstones, blue topaz is also measured by carat weight. Larger stone are generally more expensive than smaller ones.
In conclusion, when evaluating the blue topaz, you can start from the aspect of color, clarity, cut, surface as well as carat.