search
  • Sign In
    Sign Up
  • English speaking customer support only

    Toll Free - USA & Canada only:
    1-800-464-1640

    International:
    +66-39303404

  • Change Language
  • USD

Buy Round Shape 15 mm Gems

(160)
Gem Type Weight Size Clarity Price Origin
More
Single
Pairs
Lots
Faceted
Cabochons
Sort By:
Clear All
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Multicolor Pietersite Gem - 15.3ct Round Cabochon (ID: 427972)

Round Multicolor Pietersite

15.3ct
14.5 mm
$ 53.62
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Click for Product Video (447652)
Bright Blue Color-Change Fluorite Gem - 14.2ct Round Facet (ID: 447652)

Round Blue Color-Change Fluorite

14.2ct
15.1 mm
$ 354.00
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Click for Product Video (470844)
Light Grey Star Sapphire Gem - 21.2ct Round Cabochon (ID: 470844)

Round Gray Star Sapphire

21.2ct
14.7 mm
$ 743.05
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Click for Product Video (309721)
Light Brownish Golden  Zircon Gem - 21.8ct Round Facet (ID: 309721)

Round Golden Zircon

21.8ct
14.5 mm
$ 1,502.82
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Dark Blue Color-Change Fluorite Gem - 13.4ct Round Facet (ID: 414402)

Round Blue Color-Change Fluorite

13.4ct
15 mm
$ 267.40
Item in Stock
Click for Details
Compare
3 pcs
Add to Cart
Buy Now
Click for Product Video (422984)
Multicolor White Howlite Gem - 23.1ct Drilled Sphere (ID: 422984)

Sphere / Ball White Howlite

23.06 ct (total 69.17ctw)
14.5 mm
$ 55.34
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Click for Product Video (498382)
Cool Emerald Green Emerald Gem - 13.1ct Round Cabochon (ID: 498382)

Round Green Emerald

13.1ct
15.1 mm
$ 5,877.00
Item in Stock
Click for Details
Compare
2 pcs
Add to Cart
Buy Now
Multicolor White Howlite Gem - 23ct Drilled Sphere (ID: 422982)

Sphere / Ball White Howlite

23.02 ct (total 46.04ctw)
14.5 mm
$ 36.83
Item in Stock
Click for Details
Compare
2 pcs
Add to Cart
Buy Now
Multicolor White Howlite Gem - 23.4ct Drilled Sphere (ID: 470042)

Sphere / Ball White Howlite

23.36 ct (total 46.72ctw)
14.5 mm
$ 24.29
Item in Stock
Click for Details
8 pcs
Select pcs
Add to Cart
Buy Now
Reddish Brown Smoky Quartz Gem - 9.2ct Round Facet (ID: 514443)

1 pc (avg. 9.23 ct) Brown Smoky Quartz

14.5 mm
$ 36.90
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
White Quartz Gem - 10.4ct Diamond-Cut (ID: 408359)

Round White Quartz

10.4ct
14.6 mm
$ 16.18
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Medium Brown Smoky Quartz Gem - 11.3ct Diamond-Cut (ID: 408303)

Round Brown Smoky Quartz

11.3ct
14.8 mm
$ 20.26
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Medium Brown Smoky Quartz Gem - 11.7ct Round Facet (ID: 514948)

Round Brown Smoky Quartz

11.7ct
15.5 mm
$ 13.01
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Medium-Light Brown Smoky Quartz Gem - 9.9ct Round Facet (ID: 426899)

Round Brown Smoky Quartz

9.9ct
15.2 mm
$ 14.90
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Yellowish Gold Rutile Quartz Gem - 10.3ct Round Cabochon (ID: 435419)

Round Golden Rutile Quartz

10.3ct
14.9 mm
$ 25.47
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Click for Product Video (413697)
Bright Blue Color-Change Fluorite Gem - 15.1ct Round Facet (ID: 413697)

Round Blue Color-Change Fluorite

15.1ct
15 mm
$ 377.50
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Very Light Tawny Brown Rutile Quartz Gem - 24.9ct Drilled Sphere (ID: 423026)

Sphere / Ball Brown Rutile Quartz

24.9ct
15.3 mm
$ 24.91
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Warm Brown Smoky Quartz Gem - 8.9ct Round Facet (ID: 463863)

Round Brown Smoky Quartz

8.9ct
14.8 mm
$ 13.32
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Bright Blue Color-Change Fluorite Gem - 12.6ct Round Facet (ID: 413734)

Round Blue Color-Change Fluorite

12.6ct
15 mm
$ 316.00
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Multicolor Coral Gem - 7.8ct Round Cabochon (ID: 492257)

Round Multicolor Coral

7.8ct
15.5 mm
$ 22.23
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Light Yellow Citrine Gem - 12.2ct Round Facet (ID: 513663)

Round Yellow Citrine

12.2ct
15.1 mm
$ 73.32
Item in Stock
1 2 3 4 5 6 7 8

Round Shape 15 mm Gems

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!

Certified Customer Reviews
Overall Rating -> 9 star ratings
I was very happy to receive the atone that was the one in the picture. I ordered another a d also received the exact one I saw. Very happy.
Posted By Rockhound14 in January, 2021
Source: Bizrate
Overall Rating -> 10 star ratings
I always tell people about the beautiful gems I purchase at Gemselect. I usually have them made into earrings
Posted By Anjolie in January, 2021
Source: Bizrate
Overall Rating -> 10 star ratings
I love this website. I have been browsing for years and now can utilise the stones in jewellery. Sooo many stones and so little spare time to make them into beautiful things
Posted By Yeti in January, 2021
Source: Bizrate
Overall Rating -> 8 star ratings
I liked being able to view the actual gem being purchased.
Posted By Chini in January, 2021
Source: Bizrate
Overall Rating -> 10 star ratings
I was pleased with the amount of information they offered along with the accuracy of such information. Navigating their website was effortless as well. Although, I wish they had a wider variety in a particular gemstone, I was satisfied overall.
Posted By RCM in January, 2021
Source: Bizrate
Overall Rating -> 10 star ratings
Easiest website to find what I’m looking for as a starter gem collector. Many years in precious metals I decided to expand my interest. This website makes it easy to search exactly what I’m looking for with great description of what I’m purchasing.
Posted By Rlab in January, 2021
Source: Bizrate
Sign up for our Newsletter

Article Categories

Total Number of Articles: 1443

More Shapes
  • Asscher Cut
  • Baguette / Scissor Cut
  • Baguette Cabochon
  • Baguette Checkerboard
  • Baguette Crystal Cluster
  • Baguette Facet
  • Baguette Rose-Cut
  • Baguette Step Cut
  • Baguette Sugarloaf Cabochon
  • Ball Facet
  • Baroque
  • Barrel
  • Barrel / Checkerboard
  • Barrel / Full-Round
  • Barrel / Scissor Cut
  • Barrel Cabochon
  • Barrel Rose Cut
  • Bear Carving with Hole
  • Bird Carving
  • Briolette
  • Briolette with Hole
  • Bullet Shape Checkerboard
  • Carved
  • Carved Baguette
  • Carved Bird
  • Carved Cameo
  • Carved Cushion
  • Carved Elephant
  • Carved Fancy
  • Carved Fish
  • Carved Fish with Hole
  • Carved Flower
  • Carved Frog
  • Carved Fruit
  • Carved Half Heart
  • Carved Heart
  • Carved Heart Cabochon
  • Carved Leaf
  • Carved Marquise
  • Carved Marquise Cabochon
  • Carved Octagon
  • Carved Oval
  • Carved Oval Cabochon
  • Carved Pear
  • Carved Pear Cabochon
  • Carved Rhomb
  • Carved Rose
  • Carved Rose with Half Drilled Hole
  • Carved Round
  • Carved Round Bar
  • Carved Round Cabochon
  • Carved Sheep
  • Carved Shell
  • Carved Square
  • Carved Teardrop
  • Carved Trillion
  • Carved Turtle
  • Cushion Buff-Top
  • Cushion Cabochon
  • Cushion Carved Medusa Cameo
  • Cushion Checkerboard
  • Cushion Checkerboard (double sided)
  • Cushion Concave Fantasy Cut
  • Cushion Crystal Cluster
  • Cushion Mixed Cut
  • Cushion Rose-Cut
  • Cushion Shape Sugarloaf Cabochon
  • Cushion Sugarloaf Cabochon
  • Cushion-Cut
  • Diamond-Cut
  • Drilled Faceted Sphere
  • Drilled Sphere
  • Drilled Square Rondelle
  • Drilled Square Rondelle Slice
  • Fancy Bicone
  • Fancy Cabochon
  • Fancy Carved Cushion
  • Fancy Carved Oval
  • Fancy Carved Pear
  • Fancy Carved Round
  • Fancy Carved Trillion
  • Fancy Carving
  • Fancy Concave Cut
  • Fancy Crystal Cluster
  • Fancy Cut
  • Fancy Facet
  • Fancy Fantasy Carving
  • Fancy Slice
  • Fancy Star Facet
  • Fancy-Cut
  • Fantasy Carved Flower
  • Fantasy Carved Flower Cut
  • Fantasy Carved Leaf
  • Flower Carving
  • Flower-Cut
  • Half Heart Cabochon
  • Half Heart Facet
  • Half Moon Cabochon
  • Half Moon Facet-Cut
  • Half Moon Faceted
  • Half-Drilled Briolette
  • Half-Drilled Heart Facet
  • Half-Drilled Sphere
  • Heart Buff-Top
  • Heart Cabochon
  • Heart Cabochon with Hole
  • Heart Checkerboard
  • Heart Checkerboard (double sided)
  • Heart Facet
  • Heart Rose-Cut
  • Hexagon Cut
  • Marquise Cabochon
  • Marquise Checkerboard
  • Marquise Checkerboard (double sided)
  • Marquise Concave Cut
  • Marquise Facet
  • Marquise Mixed Cut
  • Marquise Slice
  • Marquise Sugarloaf Cabochon
  • Octagon / Scissor Cut
  • Octagon Buff-Top
  • Octagon Cabochon
  • Octagon Checkerboard
  • Octagon Concave Cut
  • Octagon Facet
  • Octagon Mixed-Cut
  • Octagon Step Cut
  • Oval Bar Cut
  • Oval Buff-Top
  • Oval Cabochon
  • Oval Cabochon with Hole
  • Oval Carved Cameo
  • Oval Checkerboard
  • Oval Checkerboard (double sided)
  • Oval Concave Cut
  • Oval Crystal Cluster
  • Oval Diamond-Cut
  • Oval Facet
  • Oval Fancy Facet
  • Oval Fantasy Concave Cut
  • Oval Mixed Cut
  • Oval Portuguese-Cut
  • Oval Rose-Cut
  • Oval Slice
  • Pear Cabochon
  • Pear Checkerboard
  • Pear Checkerboard with Hole
  • Pear Concave Cut
  • Pear Concave Fantasy Cut
  • Pear Crystal Cluster
  • Pear Double-Sided Checkerboard
  • Pear Facet
  • Pear Shape Sugarloaf Cabochon
  • Pear Slice
  • Pencil
  • Pencil Cut
  • Princess-Cut
  • Rhomb Cabochon
  • Rhomb Checkerboard
  • Rhomb Checkerboard (Double-Sided)
  • Rhomb Facet
  • Rondelle
  • Round Buff-Top
  • Round Cabochon
  • Round Carved Cameo
  • Round Checkerboard
  • Round Checkerboard (double sided)
  • Round Concave Cut
  • Round Concave Fantasy Cut
  • Round Crystal Cluster
  • Round Drilled Checkerboard (Double Sided)
  • Round Drilled Rondelle
  • Round Facet
  • Round Mixed-Cut
  • Round Petal Cut
  • Round Portuguese-Cut
  • Round Rose-Cut
  • Round Rose-Cut (double sided)
  • Round Slice
  • Shark Fin Cabochon
  • Shield Cabochon
  • Shield Faceted
  • Spherical
  • Square / Scissor Cut
  • Square Buff-Top
  • Square Cabochon
  • Square Checkerboard
  • Square Concave Cut
  • Square Facet
  • Square Mixed-Cut
  • Square Rose-Cut
  • Square Step-Cut
  • Square Sugarloaf Cabochon
  • Square with Hole
  • Star Facet
  • Tapered Baguette Cabochon
  • Teardrop Cabochon
  • Trapezoid
  • Trapezoid Cabochon
  • Triangle
  • Triangle Cabochon
  • Triangle Facet
  • Trillion Buff Top
  • Trillion Cabochon
  • Trillion Checkerboard
  • Trillion Concave Cut
  • Trillion Crystal Cluster
  • Trillion Facet
  • Trillion Rose-Cut
  • Trillion Shape Sugarloaf Cabochon
  • Undrilled Briolette Teardrop
Popular Gemstones
  • Sapphire
  • Emerald
  • Ruby
  • Aquamarine
  • Zircon
  • Opal
  • Topaz
  • Tourmaline
  • Garnet
  • Amethyst
  • Citrine
  • Tanzanite
All Gemstones (142)
A B C D E F G H I J K L M N O P Q R S T V Z
  • Actinolite Cat's Eye
  • Agate
  • Agate Geode
  • Almandine Garnet
  • Amazonite
  • Amethyst
  • Ametrine
  • Ammolite
  • Andalusite
  • Andesine Labradorite
  • Apatite
  • Aquamarine
  • Aventurine
  • Black Opal
  • Bloodstone
  • Boulder Opal
  • Calcite
  • Carnelian
  • Cat's Eye Apatite
  • Cat's Eye Aquamarine
  • Cat's Eye Gemstones
  • Cat's Eye Moonstone
  • Cat's Eye Opal
  • Cat's Eye Scapolite
  • Chalcedony
  • Charoite
  • Chocolate Opal
  • Chrome Diopside
  • Chrysoberyl
  • Chrysocolla
  • Chrysoprase
  • Citrine
  • Clinohumite
  • Color Change Gemstones
  • Color-Change Diaspore
  • Color-Change Fluorite
  • Color-Change Garnet
  • Color-Change Sapphire
  • Coral
  • Demantoid Garnet
  • Dendritic Agate
  • Diamond
  • Druzy Amethyst
  • Druzy Azurite
  • Emerald
  • Enstatite
  • Fire Agate
  • Fire Opal
  • Fluorite
  • Fossil Coral
  • Garnet
  • Golden Beryl
  • Grandidierite
  • Grossularite Garnet
  • Hawk's Eye
  • Hematite
  • Hemimorphite Druzy
  • Hessonite Garnet
  • Hiddenite
  • Howlite
  • Hyalite Opal
  • Idocrase
  • Imperial Topaz
  • Iolite
  • Jade Gemstones
  • Jadeite
  • Jasper
  • Kornerupine
  • Kunzite
  • Kyanite
  • Labradorite
  • Lapis Lazuli
  • Larimar
  • Malachite
  • Malaya Garnet
  • Mali Garnet
  • Maw-Sit-Sit
  • Moonstone
  • Morganite
  • Mother of Pearl
  • Mystic Topaz
  • Nuummite
  • Obsidian
  • Onyx
  • Opal
  • Opal Doublet
  • Opal in Matrix
  • Pearl
  • Peridot
  • Pietersite
  • Prehnite
  • Pyrite
  • Pyrope Garnet
  • Quartz
  • Quartz Cat's Eye
  • Quartz With Marcasite
  • Rainbow Moonstone
  • Rainbow Pyrite
  • Rhodochrosite
  • Rhodolite Garnet
  • Rose Quartz
  • Rubellite Tourmaline
  • Ruby
  • Ruby in Fuchsite
  • Ruby-Zoisite
  • Rutile Quartz
  • Sapphire
  • Scapolite
  • Scolecite
  • Seraphinite
  • Serpentine
  • Sillimanite
  • Sillimanite Cat's Eye
  • Smithsonite
  • Smoky Quartz
  • Snowflake Obsidian
  • Sodalite
  • Spectrolite
  • Spessartite Garnet
  • Sphalerite
  • Sphene
  • Spinel
  • Star Diopside
  • Star Garnet
  • Star Gemstones
  • Star Lemon Quartz
  • Star Moonstone
  • Star Rose Quartz
  • Star Ruby
  • Star Sapphire
  • Star Sunstone
  • Strawberry Quartz
  • Sunstone
  • Tanzanite
  • Tiger's Eye
  • Tiger's Eye Matrix
  • Topaz
  • Tourmaline
  • Tsavorite Garnet
  • Turquoise
  • Variscite
  • Zircon
Main Categories
  • New Arrivals
  • Gemstone Lots
  • Calibrated Gemstones
  • Gemstones By Piece
  • Top Grade Gems
  • Matching Pairs
  • Cabochon Gemstones
  • Drilled Gems, Briolettes and Beads
  • Birthstones
  • Gemstone Carvings
  • Fancy Gemstones
  • Star Gemstones
  • Unheated Sapphire
English speaking customer support only

Toll Free - USA & Canada only:
1-800-464-1640

International:
+66-39303404

Save Money
No shipping Fees for Additional Items!
$8.90 Worldwide Shipping

Update Translation
 
Current Value
New Value
GemSelect Gemstones
X Close Window
Colored Gemstones
X Close Window
Colored Gemstones
X Close Window
Colored Gemstones
Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

Size Comparison Chart