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Gemtype Color Shape Weight Size Clarity Price Origin
You Selected (71): London Blue Topaz Gems - Topaz Clear All
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4 pcs
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0.9ct Oval Facet London Blue Topaz Gem (ID: 480537)
0.94 ct (total 3.77ctw) Topaz
7.1 x 5.1 mm
$ 30.16
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2 pcs
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0.8ct Pear Facet London Blue Topaz Gem (ID: 498698)
0.84 ct (total 1.68ctw) Topaz
7.1 x 5 mm
$ 11.76
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1 pc
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4.8ct Pear Facet London Blue Topaz Gem (ID: 505625)
4.75 ct Topaz
12.2 x 9.2 mm
$ 35.01
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4 pcs
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0.7ct Pear Facet London Blue Topaz Gem (ID: 499762)
0.70 ct (total 2.81ctw) Topaz
6.9 x 4.9 mm
$ 19.67
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4 pcs
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0.8ct Pear Facet London Blue Topaz Gem (ID: 498714)
0.77 ct (total 3.07ctw) Topaz
6.9 x 5 mm
$ 21.49
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4 pcs
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1ct Oval Facet London Blue Topaz Gem (ID: 480539)
0.97 ct (total 3.87ctw) Topaz
7 x 5.1 mm
$ 30.96
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4 pcs
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0.8ct Pear Facet London Blue Topaz Gem (ID: 499759)
0.76 ct (total 3.05ctw) Topaz
7 x 5.1 mm
$ 21.35
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1 pc
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3.9ct Pear Facet London Blue Topaz Gem (ID: 414704)
3.90 ct Topaz
12 x 8.1 mm
$ 45.75
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4 pcs
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1ct Oval Facet London Blue Topaz Gem (ID: 480534)
1.01 ct (total 4.04ctw) Topaz
7.1 x 5.1 mm
$ 32.32
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2 pcs
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0.8ct Pear Facet London Blue Topaz Gem (ID: 499657)
0.79 ct (total 1.57ctw) Topaz
6.9 x 5.1 mm
$ 10.99
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5 pcs
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0.9ct Oval Facet London Blue Topaz Gem (ID: 480518)
0.89 ct (total 4.45ctw) Topaz
7 x 5 mm
$ 35.60
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2 pcs
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0.8ct Pear Facet London Blue Topaz Gem (ID: 498702)
0.76 ct (total 1.51ctw) Topaz
7 x 5.1 mm
$ 10.57
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2 pcs
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0.8ct Pear Facet London Blue Topaz Gem (ID: 498701)
0.82 ct (total 1.63ctw) Topaz
7 x 5 mm
$ 11.41
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4 pcs
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0.7ct Pear Facet London Blue Topaz Gem (ID: 498716)
0.68 ct (total 2.72ctw) Topaz
7 x 5 mm
$ 19.04
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4 pcs
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1ct Oval Facet London Blue Topaz Gem (ID: 480619)
0.97 ct (total 3.89ctw) Topaz
7 x 5.1 mm
$ 31.12
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4 pcs
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0.9ct Pear Facet London Blue Topaz Gem (ID: 499760)
0.85 ct (total 3.38ctw) Topaz
6.9 x 4.9 mm
$ 23.66
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4 pcs
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0.8ct Pear Facet London Blue Topaz Gem (ID: 498720)
0.78 ct (total 3.13ctw) Topaz
7 x 5.1 mm
$ 21.91
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4 pcs
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0.8ct Pear Facet London Blue Topaz Gem (ID: 499755)
0.80 ct (total 3.21ctw) Topaz
6.9 x 5 mm
$ 22.47
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2 pcs
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0.8ct Pear Facet London Blue Topaz Gem (ID: 498699)
0.75 ct (total 1.50ctw) Topaz
7 x 5 mm
$ 10.50
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4 pcs
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0.7ct Pear Facet London Blue Topaz Gem (ID: 499763)
0.68 ct (total 2.72ctw) Topaz
6.8 x 4.9 mm
$ 19.04
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4 pcs
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0.7ct Pear Facet London Blue Topaz Gem (ID: 498727)
0.72 ct (total 2.89ctw) Topaz
6.9 x 5 mm
$ 20.23
Item in Stock
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London Blue Topaz Gems
In general, blue topaz is one of the most popular and best value gemstones available today. Since natural blue topaz is extremely rare and often pale in color, the colors of London blue, Swiss blue, Electric blue and Sky blue topaz are formed through an artificial irradiation enhancement process. London blue topaz is considered 'natural topaz' although it has been treated, and through enhancement, it remains as one of the more affordable gemstones on the market, even in larger sizes; especially when compared to the prices of other popular blue gemstones, such as aquamarine, blue zircon and most especially, blue sapphire. It is in fact, the second most popular blue gemstone on the market, next to blue sapphire. Topaz is one of December's official birthstones. The topaz family of gemstone is indeed one of the most important gems in the world of colored stones. It is one of the hardest gems available (8 on Mohs scale), although its perfect cleavage can leave it vulnerable to hard knocks and blows, a trait it shares with diamond.

Blue topaz is available in a wide range of vivid blue hues, and not only does it occur with excellent transparency, it also exhibits a striking vitreous luster when cut and polished. Of all the many different colors of blue topaz, London blue is the most prized and usually the most valuable. However, since all blue topaz is relatively affordable, price differences between other color varieties are usually quite minimal. Blue topaz is traded under specific color varietal trade names such as Sky-blue, Swiss-blue and London-blue. London blue is the deepest of blue topaz colors and is described as being a medium to dark grayish-blue, sometimes referred to as 'inky' blue. London blue topaz gems will often have a slight secondary greenish tone when viewed from certain angles.

Certified Customer Reviews
Overall Rating -> 9 star ratings
My selection was made quickly and efficiently.
Posted By JimC in November, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
GemSelect has a great selection at reasonable prices. Gemstones are always as beautiful as pictured.
Posted By GemLover in November, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
Colors and qualities of gems are very well represented online. Easy to use website. Great selections!
Posted By in November, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
This was my second purchase from GemSelect and definitely won’t be my last! They have a very wide variety of gems and you can always find what you are looking for with ease and the prices are very good.
Posted By Jill in November, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
Loved the wide selection of product
Posted By Miki in November, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
finally bought the last rock to complete my ring idea; needed another white one after giving the big diamond to my daughter. a diamond that size is out of my retired-school-teacher budget, so i bought a white zircon. went back to the same place that i got my loose sapphire-- great selection, good prices, good delivery!
Posted By Ptcmom in November, 2018
Source: Bizrate
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Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

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Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

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