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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (77): Ruby Gems from Madagascar Ruby, Star Ruby Clear All
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ID: 4411481 pcs
6.09ct Ruby
10.18 x 9.14 x 6.42mm
USD 182.70
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ID: 4255842 pcs
2.45ctw Ruby
7.06 x 5.11 x 3.53mm
USD 49.00
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ID: 4215001 pcs
1.73ct Ruby
7.74 x 6.07 x 4.00mm
USD 34.60
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ID: 4408861 pcs
3.00ct Ruby
8.86 x 6.92 x 5.25mm
USD 90.00
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ID: 4211361 pcs
1.78ct Ruby
7.68 x 5.93 x 4.06mm
USD 35.60
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ID: 4258821 pcs
1.45ct Ruby
7.09 x 5.14 x 4.22mm
USD 29.00
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ID: 4408821 pcs
4.54ct Ruby
10.05 x 8.26 x 6.05mm
USD 136.20
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ID: 4406171 pcs
2.65ct Ruby
9.04 x 7.06 x 4.50mm
USD 79.50
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ID: 4407361 pcs
2.66ct Ruby
8.81 x 6.98 x 4.81mm
USD 79.80
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ID: 4406081 pcs
3.52ct Ruby
10.01 x 8.10 x 4.74mm
USD 105.60
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ID: 4406101 pcs
2.89ct Ruby
9.18 x 7.26 x 4.64mm
USD 86.70
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ID: 4213911 pcs
1.69ct Ruby
7.68 x 6.05 x 3.87mm
USD 33.80
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ID: 4213321 pcs
1.72ct Ruby
7.73 x 6.05 x 4.16mm
USD 34.40
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ID: 4407421 pcs
2.46ct Ruby
9.02 x 7.19 x 4.00mm
USD 73.80
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ID: 4214131 pcs
1.69ct Ruby
7.77 x 6.08 x 3.86mm
USD 33.80
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ID: 4405141 pcs
5.02ct Ruby
11.05 x 9.00 x 5.46mm
USD 248.79
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ID: 4410001 pcs
2.89ct Ruby
9.16 x 7.17 x 4.72mm
USD 143.23
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ID: 4408801 pcs
4.55ct Ruby
10.17 x 8.24 x 5.58mm
USD 136.50
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ID: 4406091 pcs
3.88ct Ruby
10.21 x 8.24 x 4.73mm
USD 116.40
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ID: 4408811 pcs
3.88ct Ruby
10.12 x 8.12 x 4.91mm
USD 116.40
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ID: 4408891 pcs
8.94ct Ruby
13.24 x 10.99 x 6.88mm
USD 443.07
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Ruby Gems from Madagascar
With a hardness of 9 on the Mohs scale, rubies are made up of corundum , the second hardest natural material known to man. Red gem-quality corundum is traded as natural ruby, while all other colors are traded as sapphire. The name 'corundum' was derived from the ancient Sanskrit word 'kuruvindam'. Ruby is sourced from many regions of the world, including Afghanistan, Australia, Brazil, India, Cambodia, Kenya, Thailand, Myanmar (Burma), Sri Lanka (Ceylon), Tanzania, Malawi, Mozambique, Nepal, Pakistan, Zimbabwe, Tajikistan, the USA, Vietnam and Madagascar. Madagascar is one of the newer sources for ruby gemstones.

Madagascar is located approximately 400 km off the coast of Southeast Africa, and as of recent times, it has become one of the most important sources for fine-quality colored gemstones , particularly ruby and sapphire. Historically, Madagascar's economy was fueled by agriculture, but around the early 1990s, gemstone mining began to become commercialized. Shortly after in 1998, an enormous sapphire deposit was discovered in the tiny village of Ilakaka, which came as a complete surprise and led to a gemstone-fever reminiscent of the mid-19th century gold rush in California. In fact, Madagascar is believed to have some of the richest untapped gemstone reserves in the world.

The two important ruby deposits of Madagascar are located in the eastern regions of Vatomandry and Andilamena. The first rubies from Andilamena were discovered in October of 2000, but they were not well-received by the general public owed to the poor quality of material, which lacked transparency and most were rather dark. In January 2001, better quality rubies were discovered and weeks later, there were nearly 40,000 miners actively working in the Andilamena area. Rubies from this region were found in well-formed tabular crystals with slightly rounded edges, averaging around 2-3 carats each. In addition to fine ruby and sapphire, a large variety of other gemstone types have been discovered in Madagascar, including fine tourmaline, aquamarine, emerald, garnet, chrysoberyl, alexandrite, topaz, andalusite, apatite, kyanite, zircon, amethyst and citrine.
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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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