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Buy Round Shape 15 mm Gems

(164)
Gem Type Weight Size Clarity Price Origin
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Dark Blue Color-Change Fluorite Gem - 13.4ct Round Facet (ID: 414402)

Round Blue Color-Change Fluorite

13.4ct
15 mm
$ 267.40
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1 pc
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Light Pink Rose Quartz Gem - 13.3ct Round Petal Cut (ID: 414286)

Round Pink Rose Quartz

13.3ct
14.6 mm
$ 66.65
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1 pc
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Cool Emerald Green Emerald Gem - 13.1ct Round Cabochon (ID: 498382)

Round Green Emerald

13.1ct
15.1 mm
$ 5,877.00
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1 pc
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Multicolor Pietersite Gem - 15.3ct Round Cabochon (ID: 427972)

Round Multicolor Pietersite

15.3ct
14.5 mm
$ 53.62
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2 pcs
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Multicolor White Howlite Gem - 23ct Drilled Sphere (ID: 422982)

Sphere / Ball White Howlite

23.02 ct (total 46.04ctw)
14.5 mm
$ 36.83
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2 pcs
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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
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1 pc
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Bright Blue Color-Change Fluorite Gem - 14.2ct Round Facet (ID: 447652)

Round Blue Color-Change Fluorite

14.2ct
15.1 mm
$ 354.00
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10 pcs
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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
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3 pcs
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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
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1 pc
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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
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1 pc
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Light Grey Star Sapphire Gem - 21.2ct Round Cabochon (ID: 470844)

Round Gray Star Sapphire

21.2ct
14.7 mm
$ 743.05
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1 pc
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Warm Yellow Rutile Quartz Gem - 10.9ct Round Cabochon (ID: 435425)

Round Yellow Rutile Quartz

10.9ct
14.9 mm
$ 26.93
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1 pc
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Medium Grey Hematite Gem - 13ct Round Cabochon (ID: 517447)

Round Gray Hematite

13ct
14.4 mm
$ 12.95
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1 pc
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Intense Navy Blue Color-Change Fluorite Gem - 15.3ct Round Facet (ID: 413685)

Round Blue Color-Change Fluorite

15.3ct
15 mm
$ 382.25
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2 pcs
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Medium Green Seraphinite Gem - 8ct Round Cabochon (ID: 501864)

Round Green Seraphinite

7.96 ct (total 15.92ctw)
15.6 mm
$ 7.96
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1 pc
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Click for Product Video (445141)
Intense Navy Blue Color-Change Fluorite Gem - 14.6ct Round Facet (ID: 445141)

Round Blue Color-Change Fluorite

14.6ct
15 mm
$ 364.91
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1 pc
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Medium Gold Rutile Quartz Gem - 7.1ct Round Cabochon (ID: 435422)

Round Golden Rutile Quartz

7.1ct
14.6 mm
$ 17.58
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1 pc
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Bright Blue Color-Change Fluorite Gem - 14ct Round Facet (ID: 413736)

Round Blue Color-Change Fluorite

14ct
15 mm
$ 350.25
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1 pc
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Navy Blue Color-Change Fluorite Gem - 14.3ct Round Facet (ID: 413689)

Round Blue Color-Change Fluorite

14.3ct
15 mm
$ 356.50
Item in Stock
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1 pc
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Very Light Tawny Brown Rutile Quartz Gem - 11ct Round Cabochon (ID: 538974)

Round Brown Rutile Quartz

11ct
14.7 mm
$ 21.94
Item in Stock
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1 pc
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Egyptian Blue Color-Change Fluorite Gem - 13.4ct Round Facet (ID: 413707)

Round Blue Color-Change Fluorite

13.4ct
14.9 mm
$ 335.25
Item in Stock
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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 -> 10 star ratings
The Ruby Zoisite bird is beautiful and will delight my sister, I hope, for her birthday in July. I, personally love the stone which is within her ruby birthday stone, and the bird appears beautifully carved.
Posted By Jewels in May, 2020
Source: Bizrate
Overall Rating -> 9 star ratings
Gemstones are accurately portrayed and comes with a gemologist confirmation of authenticity (not appraisal) but still helps when I set in my settings to make and sell rings.
Posted By JewelerUSA in May, 2020
Source: Bizrate
Overall Rating -> 10 star ratings
It was a good experience.
Posted By Marc in May, 2020
Source: Bizrate
Overall Rating -> 9 star ratings
I would recommend gem select. They care about all details from description to quality to packaging to shipping. I specialize in turquoise so I would like more explicit provenance than "American"... Couldn't they give me mine or at least state? Never the less very classy. Also, their turquoise cabochons are very thick for good and bad. I cut many in half to make them more versatile and commercially useful. If one can't do that then you are going to have to settle for wire wrapped jewelry. I think that overall thy are a great resource.
Posted By Baddadsilver in May, 2020
Source: Bizrate
Overall Rating -> 10 star ratings
I am looking forward to my purchased opal to be set in a ring and a necklace for my sister for her birthday present I am interested I working with this company in the future if we are happy with our opals thanks so much for your communication
Posted By Amy in May, 2020
Source: Bizrate
Overall Rating -> 10 star ratings
I love how y'all have a video and clear pictures of the particular gem stones to buy.
Posted By Bfolkbones in May, 2020
Source: Bizrate
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Article Categories

Total Number of Articles: 1289

More Shapes
  • Asscher Cut
  • Baguette / Scissor Cut
  • Baguette Cabochon
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  • Baguette Rose-Cut
  • Baguette Step Cut
  • Baguette Sugarloaf Cabochon
  • Baroque
  • Barrel
  • Barrel / Checkerboard
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  • Barrel Cabochon
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  • Bear Carving with Hole
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  • Bullet Shape Checkerboard
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  • Carved Octagon
  • Carved Oval
  • Carved Oval Cabochon
  • Carved Pear
  • Carved Pear Cabochon
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  • 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 Crystal Cluster
  • Fancy Facet
  • Fancy Fantasy Carving
  • Fancy Slice
  • Fancy Square Checkerboard
  • 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 Cabochon
  • Half-Drilled Heart Facet
  • Half-Drilled Sphere
  • Heart Cabochon
  • Heart Checkerboard
  • Heart Checkerboard (double sided)
  • Heart Facet
  • Heart Rose-Cut
  • Hexagon Cut
  • Marquise Cabochon
  • Marquise Checkerboard
  • Marquise Checkerboard (double sided)
  • Marquise Facet
  • Marquise Mixed Cut
  • Marquise Slice
  • Marquise Sugarloaf Cabochon
  • Octagon / Scissor Cut
  • Octagon Buff-Top
  • Octagon Cabochon
  • Octagon Checkerboard
  • 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 Checkerboard
  • Round Checkerboard (double sided)
  • Round Concave Cut
  • Round Concave Fantasy Cut
  • 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
  • Spherical
  • Square / Scissor Cut
  • Square Buff-Top
  • Square Cabochon
  • Square Checkerboard
  • Square Facet
  • Square Mixed-Cut
  • Square Rose-Cut
  • Square Step-Cut
  • Square Sugarloaf Cabochon
  • Square with Hole
  • Tapered Baguette Cabochon
  • Teardrop Cabochon
  • Trapezoid
  • Trapezoid Cabochon
  • Trapezoid Checkerboard
  • Triangle
  • Triangle Cabochon
  • Triangle Facet
  • Trillion Cabochon
  • Trillion Checkerboard
  • Trillion Concave Cut
  • Trillion Concave Fantasy Cut
  • Trillion Crystal Cluster
  • Trillion Facet
  • Trillion Rose-Cut
  • Trillion Shape Sugarloaf Cabochon
  • Undrilled Briolette Teardrop
Popular Gemstones
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All Gemstones (145)
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
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  • Color-Change Diaspore
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  • Dendritic Agate
  • Diamond
  • Druzy Amethyst
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  • 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
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  • Maw-Sit-Sit
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  • Morganite
  • Moss Opal
  • Mother of Pearl
  • Mystic Quartz
  • Mystic Topaz
  • Nuummite
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  • Opal Doublet
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  • Pearl
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  • Pyrope Garnet
  • Quartz
  • Quartz Cat's Eye
  • Quartz With Marcasite
  • Rainbow Moonstone
  • Rainbow Pyrite
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  • Rhodolite Garnet
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  • Ruby
  • Ruby in Fuchsite
  • Ruby-Zoisite
  • Rutile Quartz
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  • Scapolite
  • Scolecite
  • Seraphinite
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  • Sillimanite
  • Sillimanite Cat's Eye
  • Smithsonite
  • Smoky Quartz
  • Snowflake Obsidian
  • Sodalite
  • Spectrolite
  • Spessartite Garnet
  • Sphalerite
  • Sphene
  • Spinel
  • Star Diopside
  • Star Garnet
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  • Star Lemon Quartz
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  • Sugilite
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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