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5 mm Gemstones for Jewelry

Browse our selection of precisely calibrated 5 mm gemstones, ideal for consistent and professional jewelry designs.

5 mm Gemstones Weight
5 mm Gemstones Size
5 mm Gemstones Clarity
5 mm Gemstones Price
5 mm Gemstones Treatment

Size Explained

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For Example: 6-7
For Example: 8-9
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Black 5 mm Gemstones
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Green 5 mm Gemstones
Multicolor 5 mm Gemstones
Orange 5 mm Gemstones
Pink 5 mm Gemstones
Purple 5 mm Gemstones
Red 5 mm Gemstones
Turquoise 5 mm Gemstones
Violet 5 mm Gemstones
White 5 mm Gemstones
Yellow 5 mm Gemstones
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Pairs
Lots
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0.61ct Orange Sphalerite, Round, VS-SI

5 mm (calibrated)

$ 36.60

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0.50ct White Rainbow Moonstone, Square, Transparent

5 x 5 mm (calibrated)

$ 21.00

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3.62ctw Pink Sapphire, Pear Shape, VVS-VS

4.9 x 3.2 mm

$ 311.08

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0.51ct Blue Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 413.93

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0.71ct Green Sapphire, Heart, VS

5 x 5 mm (calibrated)

$ 46.79

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2.58ctw Purple Rhodolite Garnet, Trillion, VS

5 x 5 mm (calibrated)

$ 27.24

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0.38ct Orange Sapphire, Pear Shape, VVS-VS

5 x 3.8 mm

$ 25.54

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0.44ctw Orange Sapphire, Marquise, VS

5 x 2.5 mm (calibrated)

$ 30.26

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0.45ct Green Sapphire, Emerald Cut, VS

5.2 x 3.2 mm

$ 51.30

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0.87ctw Yellow Citrine, Heart, VS

5 x 5 mm (calibrated)

$ 7.31

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0.58ctw Purple Sapphire, Oval, VVS-VS

4.9 x 3.2 mm

$ 76.56

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0.53ct Blue Sapphire, Oval, VVS-VS

5 x 4 mm (calibrated)

$ 80.72

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0.66ct Blue Sapphire, Round, VVS

5 mm (calibrated)

$ 430.31

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1.34ctw White Zircon, Round, VS

5 mm (calibrated)

$ 42.46

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1.47ctw Red Pyrope Garnet, Square, VVS-VS

5 x 5 mm (calibrated)

$ 13.58

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0.44ct Yellow Color-Change Diaspore, Cushion, VVS

5 x 4.4 mm

$ 27.98

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0.41ct Green Sapphire, Emerald Cut, VVS

5.1 x 3.2 mm

$ 46.74

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0.61ct Red Pyrope Garnet, Heart, VVS

5 x 5 mm (calibrated)

$ 5.86

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0.24ct Violet Iolite, Baguette, VS

5 x 3 mm (calibrated)

$ 11.52

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2.83ctw Blue Topaz, Oval, VS

5 x 3.1 mm

$ 15.57

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0.42ct Pink Morganite, Round, VS-SI

5 mm (calibrated)

$ 21.00

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1.10ctw Blue Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 925.07

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3.09ctw Green Peridot, Round, VVS-VS

5 mm (calibrated)

$ 61.19

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0.44ct Green Sapphire, Oval, VVS-VS

5 x 4 mm (calibrated)

$ 39.19

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Why Buy 5 Mm Gemstones from GemSelect?

Precision Cut 5 mm Gemstones

Our 5 mm gemstones are expertly cut to precise dimensions, making them ideal for standardized jewelry settings such as rings, earrings, and bracelets.

Shop 5mm Loose Gemstones Online

Discover a wide range of 5mm loose gemstones available in many varieties, colors, and shapes, all ready for immediate shipment worldwide.

Perfect Size for Jewelry Settings

The 5 mm size is one of the most popular choices for jewelry, offering a balance between visibility and wearability for rings, studs, and pendants.

Wide Variety of Gemstone Types

Choose from sapphires, garnets, amethyst, citrine, peridot, and many other gemstones, all available in calibrated 5 mm sizes.

Faceted and Cabochon Options

Our 5 mm gemstones are available in both faceted cuts for maximum brilliance and cabochon finishes for a smooth, classic appearance.

Calibrated Gemstones for Easy Setting

Calibrated 5mm gemstones ensure a consistent fit in pre-made jewelry mounts, saving time and ensuring professional results for jewelers.

Natural and Certified Gemstones

All our gemstones are natural and carefully sourced, with full disclosure of any treatments to ensure transparency and trust.

Wholesale 5 mm Gemstones

We offer competitive pricing for bulk purchases, making our 5 mm gemstones an excellent choice for jewelry manufacturers and resellers.

Learn more about gemstone cuts, sizes, and quality on our Gemstone Cut Information Page.

FAQs

What does 5 mm mean in gemstones?

5 mm refers to the diameter or size of the gemstone, commonly used for round stones, making it a standardized size for jewelry settings.

Are 5 mm gemstones considered large?

5 mm gemstones are considered medium-sized, offering a noticeable presence while remaining comfortable for everyday wear.

Are 5mm gemstones calibrated?

Yes, most 5mm gemstones are precision-cut to calibrated sizes, ensuring they fit standard jewelry mounts without adjustment.

Which gemstones are available in 5 mm size?

Many gemstones are available in 5 mm, including sapphire, ruby, garnet, amethyst, citrine, peridot, and more.

Can I use 5 mm gemstones for engagement rings?

Yes, 5 mm gemstones are a popular choice for engagement rings, especially for those seeking a balanced and practical stone size.

Do 5 mm gemstones work with standard settings?

Yes, calibrated 5 mm gemstones are designed to fit standard jewelry settings, making them easy to use in pre-made mounts.

Are your 5 mm gemstones natural?

All our gemstones are natural, with any treatments clearly disclosed to maintain transparency and customer confidence.

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

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

Enjoy viewing the selections. Excellent product

Posted By ToRa.62 in April, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

The purchasing process is fairly quick and straightforward and for me user friendly so it probably took more or less than 3 minutes to purchase and pay for the items. I wish there was a discount offer for multiple items to encourage us buyers to purchase more an incentive and add more sales in your end. Besides that, it's been a great purchasing experience and will continue to shop as I am a repeat customer and have bought from your store many times before. Thank you.

Posted By Emmanuel in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I was looking for high-quality amethyst on this site, and I was able to compare size, color, and weight in detail before making a purchase.

Posted By Atsuhisa in January, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

They have literally everything on this website! The prices are also pretty good, I was able to find plenty of nice stones that I could afford!

Posted By JC in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Easy to conduct search, good amount of stock to select from along with variety of prices.

Posted By Que in June, 2025
Source: Bizrate
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