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 Size › 5 mm Gemstones

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
Bi-color
Black 5 mm Gemstones
Blue 5 mm Gemstones
Brown 5 mm Gemstones
Golden
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
Pairs
Lots
Faceted
Cabochons
Clear All
0.54ct Red Pyrope Garnet, Heart, VVS-VS

0.54ct Red Pyrope Garnet, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 13.45

View Gem
0.35ct Green Emerald, Oval, Translucent

0.35ct Green Emerald, Oval, Translucent

4.8 x 3.9 mm

$ 23.24

View Gem
0.48ct Green Sphene, Oval, VS

0.48ct Green Sphene, Oval, VS

5 x 4 mm (calibrated)

$ 21.03

View Gem
1.56ctw Blue Kyanite, Round, SI

1.56ctw Blue Kyanite, Round, SI

5 mm (calibrated)

$ 38.84

View Gem
0.51ct Blue Sapphire, Round, VVS

0.51ct Blue Sapphire, Round, VVS

5 mm (calibrated)

$ 343.56

View Gem
0.54ct Blue Sapphire, Round, VVS-VS

0.54ct Blue Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 363.76

View Gem
0.90ctw Red Rubies, Oval, VS-SI

0.90ctw Red Rubies, Oval, VS-SI

5.2 x 3.9 mm

$ 250.99

View Gem
2.20ctw Blue Apatite, Oval, VS

2.20ctw Blue Apatite, Oval, VS

5 x 4 mm (calibrated)

$ 48.32

View Gem
2.42ctw Yellow Sapphire, Round, VVS-VS

2.42ctw Yellow Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 159.21

View Gem
1.72ctw Multicolor Andalusite, Oval, VS
Andalusite Product Video (390559)

1.72ctw Multicolor Andalusite, Oval, VS

5 x 3 mm (calibrated)

$ 91.89

View Gem
0.45ct Yellow Sapphire, Baguette, VVS-VS

0.45ct Yellow Sapphire, Baguette, VVS-VS

5 x 3 mm (calibrated)

$ 29.39

View Gem
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

View Gem
1.56ctw Yellow Sapphire, Round, VS

1.56ctw Yellow Sapphire, Round, VS

5 mm (calibrated)

$ 84.93

View Gem
2.37ctw Orange Sapphire, Round, VVS-VS

2.37ctw Orange Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 155.92

View Gem
0.71ct Purple Spinel, Cushion, VS

0.71ct Purple Spinel, Cushion, VS

5 x 5 mm (calibrated)

$ 49.50

View Gem
3.23ctw Purple Rhodolite Garnet, Round, VS

3.23ctw Purple Rhodolite Garnet, Round, VS

5 mm (calibrated)

$ 70.77

View Gem
0.62ct Multicolor Sapphire, Cushion, VS

0.62ct Multicolor Sapphire, Cushion, VS

5 x 4 mm (calibrated)

$ 49.40

View Gem
1.41ctw Red Pyrope Garnet, Square, VS

1.41ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 10.81

View Gem
0.55ct Blue Sapphire, Round, VS

0.55ct Blue Sapphire, Round, VS

5 mm (calibrated)

$ 327.39

View Gem
0.66ct Green Sapphire, Heart, VS

0.66ct Green Sapphire, Heart, VS

5 x 5 mm (calibrated)

$ 36.11

View Gem
0.35ct Pink Morganite, Round, VS-SI

0.35ct Pink Morganite, Round, VS-SI

5 mm (calibrated)

$ 14.53

View Gem
0.73ct Blue Sapphire, Cushion, VS

0.73ct Blue Sapphire, Cushion, VS

5 x 5 mm (calibrated)

$ 87.25

View Gem
1.35ctw Red Pyrope Garnet, Square, VS

1.35ctw Red Pyrope Garnet, Square, VS

4.8 x 4.7 mm

$ 10.36

View Gem
0.27ct Violet Iolite, Emerald Cut, VS

0.27ct Violet Iolite, Emerald Cut, VS

5 x 3 mm (calibrated)

$ 10.76

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

The stones are very nice.

Posted By Mvk in August, 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 -> 10 star ratings

Good, hope gem quality is good and genuine

Posted By Varun in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I love the ability to choose from many options of shapes, gemstone type, color, and so forth. It is fun!

Posted By Geof in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

overall great

Posted By SR in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Filters need to be improved but rest of website is great

Posted By Rock hound in December, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
Enlarged Gemstone Image