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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

Choose Size or Size Range
For Example: 6-7
For Example: 8-9
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Black 5 mm Gemstones
Blue 5 mm Gemstones
Brown 5 mm Gemstones
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Gray 5 mm Gemstones
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
Single
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Lots
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1.54ctw White Zircon, Round, VVS
Zircon Product Video (594857)

1.54ctw White Zircon, Round, VVS

5 mm (calibrated)

$ 37.96

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0.19ct Violet Amethyst, Marquise, Transparent
Amethyst Product Video (610605)

0.19ct Violet Amethyst, Marquise, Transparent

5.2 x 2.6 mm

$ 1.22

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0.46ct Yellow Citrine, Heart, VVS

0.46ct Yellow Citrine, Heart, VVS

5 x 5 mm (calibrated)

$ 3.67

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2.86ctw Orange Spessartite Garnet, Round, VS

2.86ctw Orange Spessartite Garnet, Round, VS

5 mm (calibrated)

$ 97.14

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2.27ctw Green Peridot, Round, VVS-VS

2.27ctw Green Peridot, Round, VVS-VS

5 mm (calibrated)

$ 37.31

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0.75ct Orange Sphalerite, Round, SI

0.75ct Orange Sphalerite, Round, SI

5 mm (calibrated)

$ 37.35

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0.44ct Yellow Citrine, Heart, VVS-VS

0.44ct Yellow Citrine, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 3.50

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2.23ctw Blue Apatite, Oval, VS

2.23ctw Blue Apatite, Oval, VS

5 x 4 mm (calibrated)

$ 48.99

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0.66ct Green Sapphire, Heart, VS

0.66ct Green Sapphire, Heart, VS

5 x 5 mm (calibrated)

$ 36.11

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0.58ct Green Sapphire, Oval, VVS-VS

0.58ct Green Sapphire, Oval, VVS-VS

5 x 4 mm (calibrated)

$ 42.88

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1.40ctw Blue Apatite, Oval, VS-SI

1.40ctw Blue Apatite, Oval, VS-SI

5 x 4 mm (calibrated)

$ 28.93

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1.74ctw Orange Sapphire, Marquise, VS

1.74ctw Orange Sapphire, Marquise, VS

4.8 x 2.6 mm

$ 38.25

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2.89ctw Green Peridot, Square, VS

2.89ctw Green Peridot, Square, VS

5 x 5 mm (calibrated)

$ 28.78

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0.64ct Red Pyrope Garnet, Heart, VS

0.64ct Red Pyrope Garnet, Heart, VS

5 x 5 mm (calibrated)

$ 15.94

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1.28ctw Yellow Sapphire, Round, VVS-VS

1.28ctw Yellow Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 84.21

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0.37ct Orange Sapphire, Pear Shape, VVS-VS
Sapphire Product Video (731965)

0.37ct Orange Sapphire, Pear Shape, VVS-VS

5.2 x 4.1 mm

$ 55.28

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0.57ct Red Pyrope Garnet, Heart, VS

0.57ct Red Pyrope Garnet, Heart, VS

5 x 5 mm (calibrated)

$ 14.19

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0.47ct Blue Kyanite, Round, SI

0.47ct Blue Kyanite, Round, SI

5 mm (calibrated)

$ 11.70

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0.48ctw Purple Sapphire, Oval, VVS-VS

0.48ctw Purple Sapphire, Oval, VVS-VS

5 x 3 mm (calibrated)

$ 52.59

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0.29ct Violet Amethyst, Emerald Cut, VS-SI

0.29ct Violet Amethyst, Emerald Cut, VS-SI

5 x 3 mm (calibrated)

$ 1.68

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0.90ctw Yellow Citrine, Heart, VVS

0.90ctw Yellow Citrine, Heart, VVS

5 x 5 mm (calibrated)

$ 7.17

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2.70ctw Red Pyrope Garnet, Square, VS

2.70ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 20.71

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0.36ct Orange Spessartite Garnet, Oval, VS

0.36ct Orange Spessartite Garnet, Oval, VS

5.1 x 3.2 mm

$ 12.55

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0.66ct Green Sapphire, Heart, VS

0.66ct Green Sapphire, Heart, VS

5 x 5 mm (calibrated)

$ 36.11

View Gem

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

It was good. There was a large selection at prices I could afford.

Posted By Zorah in February, 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

Overall Rating -> 10 star ratings

Great selection. Maybe too great i kept adding and deleting stuff because i found better looking ones

Posted By Edsor works in October, 2025
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 -> 9 star ratings

Always a good quality stone. Priced fairly and shipped promptly. Answers emails quickly

Posted By Ron T in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Would have bought an indigo and selenite, but neither listed. But, you do offer quite a large assortment otherwise.

Posted By JD in July, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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