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Gemtype Color Shape Weight Size Clarity Price Origin
You Selected (1180): Red Ruby Gemstones - Ruby, Star Ruby Clear All
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1 pc
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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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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 pc
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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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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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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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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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100 pcs
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0ct Diamond-Cut Pinkish Red Ruby Gem (ID: 500484)
0.01 ct (total 1.25ctw) Ruby
1.4 mm
$ 110.00
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4.2ct Round Cabochon Purplish Red Star Ruby Gem (ID: 468547)
4.21 ct Star Ruby
8.8 mm
$ 46.31
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1.8ct Octagon Step Cut Red Ruby Gem (ID: 459798)
1.76 ct Ruby
8.2 x 4.5 mm
$ 3,479.59
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1 pc
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1.2ct Oval Facet Red Ruby Gem (ID: 466558)
1.21 ct Ruby
6.7 x 4.9 mm
$ 27.83
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1 pc
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5.8ct Oval Cabochon Purplish Red Star Ruby Gem (ID: 473588)
5.80 ct Star Ruby
10 x 9 mm
$ 63.80
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10 pcs
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0.2ct Round Facet Pink Red Ruby Gem (ID: 399368)
0.18 ct (total 1.75ctw) Ruby
3.4 mm
$ 297.45
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1 pc
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1.7ct Octagon Step Cut Red Ruby Gem (ID: 459794)
1.68 ct Ruby
6.4 x 5.2 mm
$ 3,320.00
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1.2ct Oval Facet Pink Red Ruby Gem (ID: 483112)
1.24 ct Ruby
6.9 x 5.1 mm
$ 28.52
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2.9ct Oval Facet Pinkish Red Ruby Gem (ID: 495603)
2.85 ct Ruby
9.1 x 7.2 mm
$ 65.55
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2 pcs
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0.4ct Round Facet Pinkish Red Ruby Gem (ID: 494952)
0.42 ct (total 0.84ctw) Ruby
4.3 mm
$ 164.22
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4 pcs
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1.5ct Oval Facet Pinkish Red Ruby Gem (ID: 495343)
1.50 ct (total 5.99ctw) Ruby
7.2 x 5.2 mm
$ 167.72
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1.5ct Octagon Step Cut Red Ruby Gem (ID: 459800)
1.52 ct Ruby
8.2 x 4.8 mm
$ 3,005.10
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1 pc
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1.3ct Oval Facet Red Ruby Gem (ID: 466575)
1.26 ct Ruby
6.9 x 5.2 mm
$ 28.98
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2 pcs
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Click for Product Video (494956)
0.5ct Round Facet Pinkish Red Ruby Gem (ID: 494956)
0.49 ct (total 0.98ctw) Ruby
4.5 mm
$ 191.59
Item in Stock
Red Ruby Gemstones
Red Ruby has long-been famed for its remarkable brilliance and silky to vitreous luster, as well as its excellent durability and versatility. Red ruby is without doubt one of the most valuable and wearable of all gemstones as very few gemstone types can even compare to the appealing qualities of fine red ruby. Historically, ruby has been one of the most important gemstone types of all time. In fact, for most of time, all red gemstones were believed to be ruby.

Ruby is composed of corundum, the same material which sapphire is composed of. The name 'corundum' originates from the ancient Sanskrit word 'kuruvindam'. Ruby is the red gem-quality variety of corundum, while all other colors are referred to as 'sapphire'; both gem types are ranked 9 on the Mohs scale of mineral hardness, making them the second hardest natural known substances on earth. Red ruby, along with sapphire, emerald and diamond, is grouped as one of the 'precious four' gems, although the use of the terms precious and semi-precious gems is no longer recognized by most professional gem and jewelry organizations, including the AGTA (American Gem Trade Association). Red ruby gems can be found in various shapes and cutting styles, including rounds, ovals, pears, trillions and fancy hearts. Oval-shaped rubies are most common because oval shapes are typically cut to maximize carat weight, and since most gems are bought and sold on a price per carat basis, the shape greatly affects the end price for retail consumers. Fine quality red rubies can be very expensive, especially gemstones with top color, clarity and cut. Heavily treated rubies, which usually are sourced from Africa, are very affordable gems, especially due to the introduction of fracture-filling treatment, many rubies can be found in very large gem sizes, even gems weighing 10 carats or more.

Most experts agree that ruby from Myanmar (Burma) is the finest ruby available, particularly "pigeon's-blood" ruby mined from the Mogok region of Burma. Red rubies mined from the Mong Hsu region of Burma are also very popular and they often exhibit a slightly bluish or purplish hue. Mong Hsu rubies weren't as well-received by international markets when they were first introduced to the ruby markets just before the turn of the century, especially when compared to the top color seen in the Burmese ruby gems sourced from Mogok. However, after processing them with routine heat treatment, Thai gem suppliers discovered that Mong Hsu Burmese rubies can exhibit excellent color and clarity, often comparable to that of the Mogok Burma ruby. Red star rubies are also a rarity and very valuable, particularly star ruby with sharp, clear asterism. Many of the star rubies available today are sourced from Thailand, as well as Sri Lanka (Ceylon) and Tanzania.

Certified Customer Reviews
Overall Rating -> 9 star ratings
My selection was made quickly and efficiently.
Posted By JimC in November, 2018
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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
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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

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

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