X
Gemstone Search

Your Details

Please fill in your email address

Please fill in a password

Forgot your password?

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
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
0.67ct Yellow Grossularite Garnet, Round, VS

0.67ct Yellow Grossularite Garnet, Round, VS

5 mm (calibrated)

$ 18.17

View Details
0.64ct Purple Spinel, Round, VS

0.64ct Purple Spinel, Round, VS

5 mm (calibrated)

$ 33.14

View Details
0.39ct Orange Spessartite Garnet, Oval, VS

0.39ct Orange Spessartite Garnet, Oval, VS

5 x 3.5 mm

$ 15.96

View Details
0.59ct Yellow Zircon, Oval, VVS

0.59ct Yellow Zircon, Oval, VVS

5.2 x 4 mm

$ 10.62

View Details
0.37ct Blue Tanzanite, Pear Shape, VS

0.37ct Blue Tanzanite, Pear Shape, VS

5 x 4 mm (calibrated)

$ 26.64

View Details
0.73ctw Yellow Color-Change Diaspore, Cushion, VS

0.73ctw Yellow Color-Change Diaspore, Cushion, VS

5 x 4.2 mm

$ 46.43

View Details
1.21ctw Yellow Sapphire, Round, VS

1.21ctw Yellow Sapphire, Round, VS

5 mm (calibrated)

$ 80.11

View Details
0.44ct Green Sapphire, Oval, VS

0.44ct Green Sapphire, Oval, VS

5 x 4 mm (calibrated)

$ 39.19

View Details
0.48ct Green Sapphire, Oval, VVS

0.48ct Green Sapphire, Oval, VVS

5 x 4 mm (calibrated)

$ 42.76

View Details
1.98ctw Blue Sapphire, Briolette, VS

1.98ctw Blue Sapphire, Briolette, VS

5 x 3.2 mm

$ 78.41

View Details
0.62ct Blue Sapphire, Round, VVS

0.62ct Blue Sapphire, Round, VVS

5 mm (calibrated)

$ 444.66

View Details
0.50ct Yellow Citrine, Cushion, VVS-VS

0.50ct Yellow Citrine, Cushion, VVS-VS

5 x 5 mm (calibrated)

$ 4.50

View Details
2.31ctw Yellow Sapphire, Round, VS

2.31ctw Yellow Sapphire, Round, VS

5 mm (calibrated)

$ 183.11

View Details
0.36ct Blue Tanzanite, Pear Shape, VS

0.36ct Blue Tanzanite, Pear Shape, VS

5.1 x 3.8 mm

$ 25.92

View Details
0.40ct Green Sapphire, Oval, VVS-VS

0.40ct Green Sapphire, Oval, VVS-VS

5 x 4 mm (calibrated)

$ 35.63

View Details
0.51ct Orange Spessartite Garnet, Oval, VS

0.51ct Orange Spessartite Garnet, Oval, VS

5 x 4 mm (calibrated)

$ 18.36

View Details
1.04ctw Violet Amethyst, Cushion, Transparent

1.04ctw Violet Amethyst, Cushion, Transparent

5 x 5 mm (calibrated)

$ 8.74

View Details
1.39ctw Red Rhodolite Garnet, Square, VS

1.39ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 12.22

View Details
2.16ctw Green Tsavorite Garnet, Oval, VS

2.16ctw Green Tsavorite Garnet, Oval, VS

5 x 3 mm (calibrated)

$ 142.56

View Details
3.02ctw Red Rhodolite Garnet, Square, VS

3.02ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 31.85

View Details
0.36ct Yellow Sapphire, Emerald Cut, VVS

0.36ct Yellow Sapphire, Emerald Cut, VVS

5 x 3.1 mm

$ 43.20

View Details
0.64ct Blue Sapphire, Round, VVS
Sapphire Product Video (467454)

0.64ct Blue Sapphire, Round, VVS

5 mm (calibrated)

$ 519.43

View Details
1.18ctw Blue Sapphire, Round, VS
Sapphire Product Video (441523)

1.18ctw Blue Sapphire, Round, VS

5 mm (calibrated)

$ 623.04

View Details
0.40ct Yellow Citrine, Heart, VVS-VS

0.40ct Yellow Citrine, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 3.84

View Details

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 was able to find what I wanted very easily!

Posted By Lenny in January, 2026
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

Web site is very simple to navigate Selection is terrific

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

Overall Rating -> 9 star ratings

Everything was good, the purchase was what I expected and what they show is what you get.

Posted By Mr. in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

love the site, the experience and the products.

Posted By Ckingpots in July, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Been using them for years! Very satisfied with the products.

Posted By PI SC in May, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
Enlarged Gemstone Image