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Home Gemstones Single Center Stones

Single Center Stones

Browse natural loose gemstones suited for single center-stone jewelry, from classic ring and pendant designs to custom one-of-a-kind settings.

Single Center Stones Weight
Single Center Stones Size
Single Center Stones Clarity
Single Center Stones Price
Single Center Stones Treatment

Size Explained

Choose Size or Size Range
For Example: 6-7
For Example: 8-9
Bi-color Single Center Stones
Black Single Center Stones
Blue Single Center Stones
Brown Single Center Stones
Golden Single Center Stones
Gray Single Center Stones
Green Single Center Stones
Multicolor Single Center Stones
Orange Single Center Stones
Pink Single Center Stones
Purple Single Center Stones
Red Single Center Stones
Turquoise Single Center Stones
Violet Single Center Stones
White Single Center Stones
Yellow Single Center Stones
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6.10ct Purple Star Ruby, Oval, Opaque

11.5 x 9.3 mm

$ 80.19

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1.04ct Green Sphene, Oval, Transparent

6.6 x 5.5 mm

$ 5.18

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0.75ct Yellow Citrine, Heart, Transparent

6 x 6 mm (calibrated)

$ 5.23

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3.50ct Yellow Citrine, Oval, VVS-VS

11 x 9 mm (calibrated)

$ 24.40

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4.72ct Multicolor Agate, Oval, Opaque

12.6 x 11.7 mm

$ 4.70

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5.48ct Violet Amethyst, Marquise, VS

17.6 x 8.8 mm

$ 42.03

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6.76ct Brown Moonstone, Oval, Translucent

14 x 9 mm (calibrated)

$ 14.59

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0.80ct Red Ruby, Round, VS-SI

5.5 mm (calibrated)

$ 505.30

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1.55ct Yellow Citrine, Oval, VVS

9 x 7 mm (calibrated)

$ 10.81

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0.34ct Blue Tanzanite, Pear Shape, VS

5 x 4 mm (calibrated)

$ 20.32

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0.73ct Orange Zircon, Oval, VVS

6 x 4 mm (calibrated)

$ 10.91

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4.15ct Brown Smoky Quartz, Round, VVS-VS

11 mm (calibrated)

$ 6.82

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1.88ct Green Tourmaline, Emerald Cut, VS-SI

18.6 x 3.7 mm

$ 45.32

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2.01ct Yellow Citrine, Square, VS

7 x 7 mm (calibrated)

$ 13.21

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2.96ct Yellow Citrine, Cushion, VVS-VS

11.8 x 6.8 mm

$ 22.70

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1.06ct Red Ruby, Round, VS-SI

6 mm (calibrated)

$ 669.52

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7.35ct Black Star Diopside, Round, Opaque

11 mm (calibrated)

$ 36.60

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0.66ct Yellow Color-Change Diaspore, Emerald Cut, VVS-VS

6.7 x 4.1 mm

$ 23.17

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0.98ct Green Emerald, Oval, Translucent

7.1 x 5.3 mm

$ 78.09

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4.20ct Black Onyx, Heart, Opaque

10.4 x 10.3 mm

$ 4.18

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3.93ct Multicolor Opal, Oval, Translucent

17.3 x 10.8 mm

$ 97.86

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0.73ct Green Emerald, Emerald Cut, SI

6 x 4 mm (calibrated)

$ 181.77

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5.22ct Brown Smoky Quartz, Emerald Cut, VVS-VS

12.9 x 9.8 mm

$ 22.87

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0.73ct Gray Spinel, Cushion, VVS-VS

5.8 x 5 mm

$ 60.59

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Why Buy Single Center Stones from GemSelect?

Shop Natural Gemstones for a Focal Design

A single center stone is the main gemstone in a jewelry design. Whether it will be set in a solitaire ring, a pendant, a statement cocktail ring or a custom mounting, the center gem sets the tone for the finished piece. This category brings together natural loose gemstones that work well as the primary visual focus of a design.

Choose by Shape, Color and Presence

Center stones are often selected for their balance of beauty, size and wearability. Round, oval, cushion, pear, emerald-cut, trillion and other shapes can each create a different style. Color is equally important: vivid, subtle, deep or pastel tones can change the entire character of a design. Use the gemstone details to compare measurements, carat weight, clarity, cut and overall appearance before choosing the stone that best fits your project.

Natural loose gemstones suitable for single center stone jewelry

For Rings, Pendants and Custom Jewelry

Single center stones are a flexible choice for many types of jewelry. A well-proportioned gem can stand alone in a simple setting, while a more dramatic stone may be paired with accent gems or decorative metalwork. If you are working with a jeweler, the loose gemstone’s dimensions are especially important for planning the setting and final design.

Review the Gem Details Before Buying

Every gemstone type has its own character, including differences in hardness, brilliance, transparency and typical inclusions. For jewelry that will be worn often, consider the intended use as well as the gem’s durability. Always check the individual product information for measurements, shape, treatment notes and other specifications relevant to your purchase.

Single Center Stone FAQs

What is a single center stone?

A single center stone is the main loose gemstone intended to be the focal point of a jewelry piece, such as a ring, pendant or custom design.

How do I choose the right size center stone?

Look at the gemstone’s millimeter measurements as well as carat weight. Two stones with the same carat weight can face up differently depending on shape, cut and gemstone type.

Which gemstone shapes are popular for center stones?

Round, oval, cushion, pear, emerald-cut and trillion shapes are common choices, but the best shape depends on the setting style and the look you prefer.

Can these stones be used for engagement rings?

Many natural gemstones can be used in engagement-style rings, but durability varies by gem type. For everyday wear, discuss setting protection and gemstone suitability with your jeweler.

Should I buy the stone before the setting?

For custom jewelry, many buyers choose the loose center stone first so the setting can be made to fit its exact shape and measurements.

GemSelect Certified Store Reviews

GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!

Overall Rating -> 9 star ratings

Plan on purchasing on an ongoing basis. So far.....so good....

Posted By Jim in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Very neat and to the point

Posted By Botha in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Great site for finding specific stones and sizes for individual pieces of jewelry

Posted By Designer in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

this site is awesome. I was able to look at the products think about purchasing and come back and find the same products. With the amount of inventory gem select has. Its awesome to be able to filter the way that they allow you too.

Posted By Tommyp in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

GemSelect is always my first choice for purchasing gemstones. The fact that the gems are always exactly as described and pictured on the website has earned my trust many times over. Even when I don't buy, I still love browsing all the beautiful stones. My new favorites are the bright green Tsavorites!

Posted By Lkcisneros in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Easy and good price

Posted By Bry_guy in March, 2026
Source: Bizrate
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