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Gemtype Color Shape Weight Size Clarity Price Origin
You Selected (4844): Red Gemstones Clear All
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1.2ct Marquise Facet Red Pyrope Garnet Gem (ID: 478952)
1.16 ct Pyrope Garnet
10 x 5 mm
$ 9.28
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1 pc
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1.9ct Oval Facet Raspberry Red Rhodolite Garnet Gem (ID: 383662)
1.89 ct Rhodolite Garnet
7.9 x 6 mm
$ 80.21
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2 pcs
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1.2ct Marquise Facet Red Pyrope Garnet Gem (ID: 479535)
1.20 ct (total 2.39ctw) Pyrope Garnet
10.1 x 5.2 mm
$ 19.12
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1.7ct Oval Facet Pinkish Red Ruby Gem (ID: 503076)
1.72 ct Ruby
7.8 x 5.9 mm
$ 43.00
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4 pcs
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1ct Heart Facet Deep Red Pyrope Garnet Gem (ID: 456441)
0.96 ct (total 3.83ctw) Pyrope Garnet
6 x 6 mm
$ 26.81
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2 pcs
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0.6ct Oval Facet Pinkish Red Ruby Gem (ID: 503613)
0.55 ct (total 1.10ctw) Ruby
5.9 x 3.9 mm
$ 331.29
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4 pcs
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1.3ct Oval Facet Pink Red Ruby Gem (ID: 483133)
1.25 ct (total 5.01ctw) Ruby
7 x 5.1 mm
$ 115.23
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1.4ct Octagon Step Cut Red Rhodonite Gem (ID: 503642)
1.35 ct Rhodonite
12.9 x 3.7 mm
$ 921.70
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0.9ct Trillion Facet Pinkish Red Spinel Gem (ID: 503515)
0.87 ct Spinel
10.3 x 6 mm
$ 243.60
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1.5ct Octagon Step Cut Red Ruby Gem (ID: 459796)
1.47 ct Ruby
7.6 x 4.9 mm
$ 3,632.81
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1.6ct Oval Facet Raspberry Red Rhodolite Garnet Gem (ID: 383830)
1.55 ct Rhodolite Garnet
7.2 x 5.7 mm
$ 65.78
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10 pcs
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0.8ct Oval Facet Red Almandine Garnet Gem (ID: 371641)
0.84 ct (total 8.42ctw) Almandine Garnet
7 x 5 mm
$ 42.10
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7.8ct Oval Cabochon Purplish Red Star Ruby Gem (ID: 468605)
7.81 ct Star Ruby
12.3 x 10 mm
$ 62.48
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2 pcs
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1.2ct Oval Facet Raspberry Red Rhodolite Garnet Gem (ID: 500931)
1.16 ct (total 2.32ctw) Rhodolite Garnet
7.1 x 5.2 mm
$ 46.40
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1.9ct Marquise Facet Red Pyrope Garnet Gem (ID: 462025)
1.89 ct Pyrope Garnet
12.1 x 6 mm
$ 17.07
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2ct Oval Facet Pinkish Red Ruby Gem (ID: 500730)
1.98 ct Ruby
8.2 x 6.1 mm
$ 45.54
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15.4ct Octagon Step Cut Pinkish Red Mystic Topaz Gem (ID: 484926)
15.37 ct Mystic Topaz
15.9 x 11.9 mm
$ 138.33
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2 pcs
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0.5ct Round Facet Pinkish Red Ruby Gem (ID: 499745)
0.54 ct (total 1.08ctw) Ruby
4.8 mm
$ 316.98
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5.2ct Round Facet Red Strawberry Quartz Gem (ID: 474908)
5.24 ct Strawberry Quartz
11.9 mm
$ 36.68
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2 pcs
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1.7ct Oval Facet Red Pyrope Garnet Gem (ID: 466028)
1.67 ct (total 3.34ctw) Pyrope Garnet
8.1 x 6.1 mm
$ 26.72
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2 pcs
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1.6ct Round Facet Red Strawberry Quartz Gem (ID: 475141)
1.61 ct (total 3.22ctw) Strawberry Quartz
8.1 mm
$ 22.54
Item in Stock
Red Gemstones
Without a doubt, the best-known red gemstone is ruby, which is red corundum; all other varieties of corundum being referred to as sapphire. Corundum is the second hardest substance on the Mohs scale, with a rating of 9. It is this combination of excellent hardness and the rich color and silky shine that make fine ruby gems so valuable.

Rubies range in color from pinkish to orangey and purplish and brownish red, depending on the chromium and iron content of the stone. Most experts expect a medium to medium-dark color tone in a very good ruby gemstone.

Red gemstones are actually quite rare, and other red gems include spinel, fire opal and garnet. There is some very fine red tourmaline (sometimes called rubellite). Many red gems are only slightly reddish, while others can occur with very pure red color. For example, rhodolite garnet is a purplish-red color, while hessonite garnet and fire opal are red-orange or vice versa.

From this page, you can use the search tools to find red gems by gem type, shape, size, carat weight and other factors. The check boxes at the top of the page can be used to filter single gems, matched pairs, gem lots and cabochons. All items shown are available and ready to ship.
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
Popular Gemstones
All Gemstones (144)
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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

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

Note: 1ct = 0.2g

Size Comparison Chart