London blue topaz is considered as the most valuable and highly sought-after color variety of blue topaz gemstone. Its color ranges from medium deep and intense dark blue with some greenish or greyish secondary tones. It is an outstanding jewelry gemstone that looks good in every jewelry setting.
Thereof, what is the difference between London blue topaz and blue topaz?
These varieties are known as London Blue and Swiss Blue, and the most obvious difference between them is the colour. London Blue topaz is a deeper hue of blue with a moderate to dark tone and saturation. On the other hand, Swiss Blue topaz is almost electric sky blue.
Subsequently, how hard is London blue topaz?
By definition, London Blue Topaz is topaz stone that has a specific medium blue color. … Topaz itself is a fluorinated aluminum silicate, and has a Mohs hardness of 8. This makes it harder than quartz, but not as hard as corundum (e.g. sapphire or ruby) or diamonds.
How can you tell if a London blue topaz is real?
Swiss blue topaz has more of an “electric” pop within the blue color, where a London blue topaz is a deeper richer color of blue. The RI for topaz is 1.609 – 1.643 which is higher than the RI of glass. If the rings are vintage and set in gold (not plated) more than likely it is a genuine topaz.
Why is blue topaz so cheap?
So why is an aquamarine more expensive than a blue topaz? Simply because a blue topaz is more accessible than an aquamarine. This is due to the fact that a blue topaz is usually produced by colouring a white topaz through irradiation and intense heat.
Does London blue topaz scratch easily?
Topaz’s hardness (8 on the Mohs scale) makes it durable and means that it does not scratch easily. To clean your topaz, simply use soapy water and a soft cloth.
Who should not wear blue topaz?
Capricorn and Aquarius Ascendant. If you were born in Capricorn ascendant then Jupiter becomes lord of the 3rd house of courage, siblings, journey and the 12th house of expenditure and losses so that Topaz gemstone should not be wear.
How do you care for a London blue topaz?
Blue topaz gems can be cleaned with water and soap:
- First, add some soap to a bowl of warm (not hot) water.
- Put the ring in the bowl and let it soak for 20-30 minutes.
- Take the ring out and clean the gemstone by gently rubbing it with a soft cloth or by scrubbing it with a soft toothbrush.
Does London blue topaz sparkle?
Sky blue is a paler pastel baby blue color. London blue is darker in tone. … Because blue topaz is lighter in color, look for eye clean gems with no visible inclusions. Cut quality is very important: a well-cut blue topaz will sparkle evenly across the entire gemstone with no dull, washed out, or lifeless areas.
Why do they call it London blue topaz?
London blue topaz is typically produced by exposure to radiation in a nuclear reactor. When topaz is exposed to fast neutrons, the radiation changes the color centers, producing the deep blue color.
What does London blue topaz signify?
London blue topaz is by nature a romantic gem and often figures in love stories as well as for honeymoon escapades. This gem signifies beauty uniqueness affluence and reveals a sense of endurance. One leading magazine “The Colored Stone ” reported blue topaz as the second most popular colored gemstone in the world.
Can blue topaz be worn everyday?
Blue topaz is a beautiful blue gemstone that is excellent for daily wear in jewelry. Some of the most popular ways to wear blue topaz include in engagement rings, cocktail rings, pendant necklaces, and earrings.
What color blue topaz is most valuable?
The most sought after blue topaz stones are Swiss Blue, a bright blue stone with a light tone, and London Blue Topaz. London Blue Topaz stones are dark blue and have a moderate to dark tone and saturation.
