90,000+Happy Customers
20+Years
WorldwideShipping
Cart
Free Report Included
Worldwide Shipping
30 Day Returns
Help Center Shipping Payment and Checkout Returns Certificates Contact Us
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
Bi-color
Black
Blue
Brown
Golden
Gray
Green
Multicolor
Orange
Pink 1 ct Ruby
Purple 1 ct Ruby
Red 1 ct Ruby
Turquoise
Violet
White
Yellow
Single
Pairs
Lots
Faceted
Cabochons
X
Clear All

1.03ct Red Ruby, Oval, VS-SI

6.4 x 5.4 mm

$ 756.10

View Gem

1.01ct Pink Ruby, Oval, VS

7 x 5 mm (calibrated)

$ 90.54

View Gem

1.01ct Red Ruby, Round, VS

5.3 mm

$ 90.54

View Gem
1 2 3
...
6
1 - 6

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 -> 10 star ratings

Found a rock that met my need. Bought it!

Posted By Skot in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

On the clarity options it goes "and better" so if youre looking for si specifically and you click si and better it still shows you basically everything. It just removes the opaques. Itd be nice if it was vs only, vss only, si only, etc

Posted By Iamnotakrustykrab in December, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

It was a good interaction I got a good gemstone for cheap

Posted By Jon in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

All items were delivered on time with all items meeting or exceeding my expectations. Cut, clarity and color were very close to the photos and description.

Posted By Bob D in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Navigating the site was very easy and the photos of the exact gem you would be purchasing was well done.

Posted By HVeeder in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Found a beautiful opal at a great price. I was not disappointed when it arrived. Even better in person.

Posted By Fried Rice in August, 2025
Source: Bizrate
Enlarged Gemstone Image