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Home Gemstones Gemstones By Weight 1 ct Ruby

Natural 1 Carat Ruby Gemstones

Discover premium 1 carat ruby gemstones in rich red colors, perfect for fine jewelry and investment pieces.

1 ct Ruby Weight
1 ct Ruby Size
1 ct Ruby Clarity
1 ct Ruby Price
1 ct Ruby Treatment

Size Explained

Choose Size or Size Range
For Example: 6-7
For Example: 8-9
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Pink 1 ct Ruby
Purple 1 ct Ruby
Red 1 ct Ruby
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1.07ct Red Ruby, Marquise, VS-SI

9 x 4.7 mm

$ 693.89

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1.01ct Red Ruby, Pear Shape, VS-SI

7 x 5 mm (calibrated)

$ 720.47

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1.09ct Red Ruby, Oval, SI

7 x 5 mm (calibrated)

$ 666.78

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1.08ct Red Ruby, Emerald Cut, VS

7 x 4.7 mm

$ 96.81

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1.09ct Red Ruby, Oval, VS-SI

7 x 5 mm (calibrated)

$ 800.14

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1.03ct Pink Ruby, Oval, VS-SI

7 x 5 mm (calibrated)

$ 92.33

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1.03ct Red Ruby, Round, VS-SI

5.5 mm (calibrated)

$ 354.00

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1.06ct Red Ruby, Oval, SI

7 x 5 mm (calibrated)

$ 778.12

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2.12ctw Red Rubies, Oval, VS

6.7 x 4.9 mm

$ 116.13

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1.09ct Red Ruby, Round, VS-SI

5.5 mm (calibrated)

$ 334.37

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1.04ct Red Ruby, Pear Shape, VS-SI

7 x 5 mm (calibrated)

$ 93.23

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2.16ctw Red Rubies, Oval, VS

7 x 5 mm (calibrated)

$ 215.14

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1.06ct Red Ruby, Marquise, SI

9.3 x 4.6 mm

$ 589.48

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1.09ct Red Ruby, Oval, VS

6.7 x 4.9 mm

$ 108.56

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1.04ct Red Ruby, Oval, VS-SI

7 x 5 mm (calibrated)

$ 809.32

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1.01ct Red Ruby, Round, VS

5.5 mm (calibrated)

$ 273.15

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1.06ct Red Ruby, Round, VS-SI

6 mm (calibrated)

$ 778.12

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1.01ct Red Ruby, Pear Shape, VS-SI

7 x 5 mm (calibrated)

$ 90.54

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1.04ct Red Ruby, Oval, VS

7 x 5 mm (calibrated)

$ 103.58

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1.05ct Red Ruby, Marquise, SI

9.2 x 4.4 mm

$ 770.77

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1.08ct Red Ruby, Pear Shape, VS-SI

7 x 5 mm (calibrated)

$ 828.27

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1.05ct Red Ruby, Oval, VS-SI

7 x 5 mm (calibrated)

$ 805.27

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1.06ct Red Ruby, Round, VS-SI

6 mm (calibrated)

$ 669.52

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1.06ct Red Ruby, Emerald Cut, VS

6.1 x 4.2 mm

$ 95.02

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Why Buy 1 Ct Ruby from GemSelect?

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 Gemstones for Fine 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 -> 7 star ratings

Could not get it to work 25 times.

Posted By Dock in July, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I liked the selection of gems, and price. I did not like your PayPal process. I already have a PP account and you want me to sign up for another.

Posted By CLTCJH in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I have a beautiful emerald I purchased from a company names gemselect and they are awesome! You should try them out?

Posted By Lynn in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Good, hope gem quality is good and genuine

Posted By Varun in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Great! Affordable

Posted By Spinellope in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

It was great

Posted By Nik in June, 2026
Source: Bizrate
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