X
Gemstone Search

Your Details

Please fill in your email address

Please fill in a password

Forgot your password?

Buy Round Shape 15 mm Gems

Round Shape 15 mm Gems Weight
Round Shape 15 mm Gems Size
Round Shape 15 mm Gems Clarity
Round Shape 15 mm Gems Price

Size Explained

Choose Size or Size Range
For Example: 6-7
For Example: 8-9
Bi-color
Black Round Shape 15 mm Gems
Blue Round Shape 15 mm Gems
Brown Round Shape 15 mm Gems
Golden Round Shape 15 mm Gems
Gray Round Shape 15 mm Gems
Green Round Shape 15 mm Gems
Multicolor Round Shape 15 mm Gems
Orange Round Shape 15 mm Gems
Pink Round Shape 15 mm Gems
Purple
Red
Turquoise
Violet Round Shape 15 mm Gems
White Round Shape 15 mm Gems
Yellow Round Shape 15 mm Gems
Single
Pairs
Lots
Faceted
Cabochons
Clear All
  • Actual Product Photos
  • Reliable Quality
  • Full Transparency
  • Large Selection
  • Affordable Prices
  • Fast, Secure Global Shipping
ID: 675817
Weight: 14.70ct (total)
Size: 14 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 41.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 710368
Weight: 8.84ct
Size: 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 25.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 435419
Weight: 10.27ct
Size: 15 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 33.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 700719
Weight: 23.42ct
Size: 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 22.49
Item in Stock
More Options & Item Details
Add to Cart
ID: 692652
Weight: 13.33ct
Size: 15 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 111.97
Item in Stock
More Options & Item Details
Add to Cart
ID: 602443
Weight: 9.66ct
Size: 15 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 46.93
Item in Stock
More Options & Item Details
Add to Cart
ID: 669284
Weight: 28.22ct (total)
Size: 15 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 507.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 601421
Weight: 7.93ct
Size: 15 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 38.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 692449
Weight: 12.13ct
Size: 15 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 101.89
Item in Stock
More Options & Item Details
Add to Cart
ID: 721638
Weight: 20.47ct
Size: 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 24.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 514932
Weight: 8.91ct
Size: 15 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 13.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 413740
Weight: 14.16ct
Size: 15 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 467.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 447652
Weight: 14.16ct
Size: 15 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 467.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 514948
Weight: 11.72ct
Size: 15 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 17.17
Item in Stock
More Options & Item Details
Add to Cart
ID: 714836
Weight: 13.45ct
Size: 15 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 34.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 414725
Weight: 13.99ct
Size: 15 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 369.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 685283
Weight: 10.80ct
Size: 15 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 12.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 408306
Weight: 10.65ct
Size: 15 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 25.16
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
Choose Page
1 - 3

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 very good and concise.

Posted By Whydothey in August, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I've made several purchases through GemSelect in the past, although not within the last six months. Their gems are always beautiful and I have never had an issue with their prices or their stones. Even when I'm not buying, I love scrolling through their website, which is very user friendly. I especially appreciate being able to change the listing order to your own liking, such as most to least expensive, largest to smallest, etc. As with most online orders, however, I think the shipping charges are not commensurate with the actual weight of the items shipped.

Posted By DrLHS in November, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I was able to find what I was looking for

Posted By Lincolnpremier in January, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

It is a good experience, it is easy to view the item, and easy to check out.

Posted By Neo in November, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I am never let down by GemSelect. I love that you get the exact stone you want. Shipping is always in a few days. I have spread the word about GemSelect on social media jewelry creating groups that I attend. This sapphire is going to make one gorgeous ring

Posted By Desertchick in April, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

Easy website to navigate, lots of different varieties and options to choose from.

Posted By Brian in July, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Always excellent quality and service from GemSelect

Posted By Mike B. in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

very good

Posted By Son Gift in January, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

Loved the lot buy options

Posted By BDG in October, 2024
Source: Bizrate

How are 15 mm Round Shape Gems Sold ?

GemSelect’s Round Shape Calibrated 15mm gems for new designs or replacements available at competitive prices. Our selections are available as single stones, pairs, and lots in this large calibrated size. Select from Faceted Gemstones, Drilled-Spheres, and Sphere-Ball Cut Jewels in a variety of both semiprecious and precious stones.

We have a large selection of Cabochons available in 15 mm Round and Calibrated Size too!

What are Good Designs for 15mm Round Gems?

We suggest using round gemstones of this size in necklace designs, earrings, large rings, bracelets, and as pendants or elements to a larger arrangement. Our selections include many different materials with varying properties and design applications and always at affordable prices.

What are Good Ideas for GemSelects 15 mm Round Shape?

GemSelect's round stones can create extraordinary pieces when combined in multi-color or single color compositions. A 15mm stone can be striking on its own when used as a pendant enabling the color of the gem and metal used make the beauty in the design. For rings, we find a 15mm center stone in a single stone composition beautiful.

As always, jewelry is the most popular gift for your loved ones as Anniversary gifts, and our quality stones are sure to impress your customers allowing them to find something genuinely stunning for their special occasions. Another excellent idea for all Natural Gemstone Jewelry is Birthstone Gifts; please check out our page for information on which gem type to select.

Details About Calibrated Sizes.

GemSelect’s Round 15mm Calibrated gemstones range in size from 15.5mm - 14.4mm in all of our selected precious and semi-precious stones. Our inventory includes large amounts of Color-Change Fluorite, Smoky Quartz, Rutile Quartz, and many other unique jewels of this 15mm size.

GemSelect Welcomes Your Questions and Suggestions.

Please contact us if you have any questions, comments, or suggestions directly at help@gemselect.com. Thank you for choosing GemSelect!

Read All

Over 19 Years in the Gemstone Business!

Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

It was very good and concise.

Posted By Whydothey in August, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I've made several purchases through GemSelect in the past, although not within the last six months. Their gems are always beautiful and I have never had an issue with their prices or their stones. Even when I'm not buying, I love scrolling through their website, which is very user friendly. I especially appreciate being able to change the listing order to your own liking, such as most to least expensive, largest to smallest, etc. As with most online orders, however, I think the shipping charges are not commensurate with the actual weight of the items shipped.

Posted By DrLHS in November, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I was able to find what I was looking for

Posted By Lincolnpremier in January, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

It is a good experience, it is easy to view the item, and easy to check out.

Posted By Neo in November, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I am never let down by GemSelect. I love that you get the exact stone you want. Shipping is always in a few days. I have spread the word about GemSelect on social media jewelry creating groups that I attend. This sapphire is going to make one gorgeous ring

Posted By Desertchick in April, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

Easy website to navigate, lots of different varieties and options to choose from.

Posted By Brian in July, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Always excellent quality and service from GemSelect

Posted By Mike B. in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

very good

Posted By Son Gift in January, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

Loved the lot buy options

Posted By BDG in October, 2024
Source: Bizrate
Enlarged Gemstone Image