Calibrated London Blue Topaz
Specify size, shape and quality when ordering. Prices are subject to change without notice. Actual carat weight may vary from the average carat weight listed.
LONDON BLUE TOPAZ
London blue topaz (Aluminum silicate fluoride hydroxide) is the darkest blue variety of topaz. Most blue topaz is silver topaz that has been irradiated and heat treated, but some stones are blue naturally.
London Blue Topaz is the darkest blue variety of topaz.
~ M ~
Malachite is an opaque semi-precious stone with various shades of green, often banded. It is about 57% copper.
London Blue Topaz Dinner Ring
by Emerald Pixie
D is for ...
Dinner Ring
An alternative name for a Cocktail Ring (see
Cocktail Ring, Part 4) ...
* London Blue Topaz - this slightly grayish medium dark to dark blue topaz results from treating colorless topaz with neutrons produced in nuclear reactors. This process is also followed by heat treatment.
London Blue Topaz, the darker blue of the Topaz family is also used for Decembers birthstone. Blue Topaz is a natural Topaz that is irradiated to create a range of colors.
[Heated (sky, Swiss and London blue topazes): blues are heated post-irradiation, "pinked" precious topaz] ...
London Blue Glass
With its soothing blue-gray color, this glass is an inexpensive substitute for London blue topaz.
Pink Ice Glass (-402)
This powerfully pink glass is brighter and much more translucent than rose quartz.
As well as the renowned sky blue topaz, the more intense coloring of Swiss blue and London blue topaz are also becoming increasingly popular.
Glacier Topaz™ ...
Light blue topaz and is sometimes referred to by its brand names - Sky blue topaz (light blue), Swiss blue topaz (deep blue) and London blue topaz (deep ink blue).
C
Cabochon ...
 See also: Gemstone, Stone, Color, Blue topaz, Gemstones
  
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