Natural 1 Carat Ruby Gemstones
Discover premium 1 carat ruby gemstones in rich red colors, perfect for fine jewelry and investment pieces.
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Bi-color
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Black
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Blue
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Brown
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Golden
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Gray
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Green
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Multicolor
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Orange
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Pink 1 ct Ruby
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Purple 1 ct Ruby
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Red 1 ct Ruby
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Turquoise
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Violet
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White
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Yellow
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Single |
Pairs |
Lots |
Faceted |
Cabochons |
1.09ct Red Ruby, Oval, SI
7 x 5 mm (calibrated)
$ 666.78
1.07ct Red Ruby, Marquise, VS-SI
9 x 4.7 mm
$ 693.89
1.01ct Red Ruby, Pear Shape, VS-SI
7 x 5 mm (calibrated)
$ 720.47
1.09ct Red Ruby, Oval, SI
6.5 x 5.5 mm
$ 800.14
1.08ct Red Ruby, Pear Shape, VS-SI
7 x 5 mm (calibrated)
$ 96.81
1.02ct Red Ruby, Marquise, SI
8.8 x 5.1 mm
$ 748.75
1.04ct Red Ruby, Oval, SI
7 x 5 mm (calibrated)
$ 763.43
1.06ct Pink Ruby, Oval, VS
7 x 5 mm (calibrated)
$ 95.02
1.08ct Red Ruby, Emerald Cut, VS
7 x 4.7 mm
$ 96.81
1.06ct Red Ruby, Oval, SI
7 x 5 mm (calibrated)
$ 778.12
1.06ct Pink Ruby, Round, VS
5.7 mm
$ 95.02
1.08ct Red Ruby, Marquise, VS-SI
9.6 x 4.6 mm
$ 828.27
1.04ct Red Ruby, Emerald Cut, VS
6.1 x 4.2 mm
$ 93.23
1.04ct Red Ruby, Round, SI
5.5 mm (calibrated)
$ 357.45
1.09ct Red Ruby, Oval, VS
7.1 x 5.3 mm
$ 108.56
1.08ct Red Ruby, Pear Shape, VS-SI
7 x 5 mm (calibrated)
$ 96.81
1.03ct Red Ruby, Round, VS-SI
5.5 mm (calibrated)
$ 354.00
1.06ct Red Ruby, Oval, SI
7 x 5 mm (calibrated)
$ 778.12
1.02ct Red Ruby, Oval, VS-SI
6.7 x 5.2 mm
$ 782.26
1.09ct Red Ruby, Oval, VS
6.7 x 4.9 mm
$ 108.56
1.04ct Pink Ruby, Oval, VS
7 x 5 mm (calibrated)
$ 93.23
2.10ctw Red Rubies, Oval, VS
7 x 5 mm (calibrated)
$ 209.16
1.05ct Red Ruby, Oval, VS-SI
7 x 5 mm (calibrated)
$ 805.27
1.08ct Red Ruby, Emerald Cut, VS
6.6 x 4.8 mm
$ 96.81
Why Buy 1 Ct Ruby from GemSelect?
- Trusted Worldwide Since 2003
- Supplying natural gemstones to jewelers and collectors in 120+ countries
- Verified natural gemstones
- View All GemSelect Reviews on Bizrate
- Secure checkout and insured worldwide delivery
- 30-day returns and satisfaction guarantee
Natural 1 Carat Ruby Stones
Our natural 1 carat ruby gemstones are carefully selected for color, clarity and cut. Each stone is 100% genuine, with any treatments fully disclosed for complete transparency and buyer confidence.
Why Choose a 1 Carat Ruby?
A 1 carat ruby offers an ideal balance between presence and wearability. It is large enough to create a striking focal point in rings or pendants, while remaining practical for everyday jewelry.
1 Carat Ruby for Engagement Rings
A 1 carat ruby is a popular choice for engagement rings thanks to its durability (Mohs 9) and intense red color. Rubies symbolize love and passion, making them a meaningful alternative to traditional diamonds.
Red Ruby Color & Quality
The value of a 1 carat ruby depends primarily on color. Highly saturated red hues with good clarity are the most desirable. We offer rubies in various shades, from deep crimson to vibrant red.
Faceted and Cabochon Options
Choose from faceted 1 carat rubies for maximum brilliance or cabochon stones for a smooth, classic appearance. Available shapes include round, oval, cushion and pear.
Certified Loose 1 Carat Rubies
All our loose 1 carat ruby gemstones are inspected and verified for authenticity. Optional gemological reports are available for buyers seeking additional assurance.
Worldwide Shipping & Secure Checkout
Buy 1 carat ruby gemstones online with confidence. We offer secure checkout, competitive pricing and worldwide shipping to jewelers and collectors.
Learn more about origin, treatments and care on our Ruby Information Page.
FAQs
How big does a 1 carat ruby look?
A 1 carat ruby typically measures around 6 to 7 mm in diameter for a round cut, depending on proportions. Exact size varies by shape and cut style.
Is a 1 carat ruby suitable for daily wear?
Yes. With a hardness of 9 on the Mohs scale, ruby is highly durable and well suited for everyday rings and other jewelry.
Are 1 carat rubies treated?
Many rubies on the market are heat treated to improve color and clarity. Any treatments are always clearly disclosed for each individual gemstone.
What affects the price of a 1 carat ruby?
Price depends on color intensity, clarity, cut quality, origin and whether the ruby is untreated. Strong, vivid red stones typically command higher values.
Can I buy multiple 1 carat rubies for matching jewelry?
Yes, we regularly stock matching pairs and calibrated 1 carat ruby gemstones suitable for earrings and coordinated designs.
GemSelect Certified Store Reviews
GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!
Overall Rating -> 10 
I love the products. I've bought them as gifts and people love my gifts
Overall Rating -> 10
Love how easy the site is to use. Really love that the pictures are of actual product.
Overall Rating -> 9 
Plan on purchasing on an ongoing basis. So far.....so good....
Overall Rating -> 9
Will know more once order received
Overall Rating -> 10
GemSelect offers excellent choices, prices & service- highly recommended! Unfortunately, prior to ordering a replacement gemstone, my jeweler neglected to mention it needed to be one that was a'cushion cuta' to fit the existing mount. Have yet to return/exchangea'
Overall Rating -> 10
So far So good
