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 6 mm Gems

(646)
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
Click for Product Video (499400)
Light Red Ruby Gem - 1.2ct Round Facet (ID: 499400)

Round Red Ruby

1.2ct
6.1 mm
$ 680.28
Item in Stock
Click for Details
65 pcs
Select pcs
Add to Cart
Buy Now
Medium Pink Strawberry Quartz Gem - 0.8ct Round Facet (ID: 503789)

1 pc (avg. 0.75 ct) Pink Strawberry Quartz

6.1 mm
$ 6.28
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Olive Green Sphene Gem - 1ct Round Facet (ID: 526426)

Round Green Sphene

1ct
6.2 mm
$ 57.20
Item in Stock
Click for Details
Compare
2 pcs
Add to Cart
Buy Now
White Zircon Gem - 1ct Diamond-Cut (ID: 358994)

Round White Zircon

1.02 ct (total 2.04ctw)
5.9 mm
$ 29.42
Item in Stock
Click for Details
Compare
2 pcs
Add to Cart
Buy Now
Baby Blue Topaz Gem - 1.2ct Round Facet (ID: 444627)

Round Blue Topaz

1.16 ct (total 2.31ctw)
6.1 mm
$ 15.08
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Bright Green Emerald Gem - 0.8ct Round Drilled Rondelle (ID: 535987)

Round Green Emerald

0.8ct
5.9 mm
$ 53.90
Item in Stock
Click for Details
Compare
4 pcs
Add to Cart
Buy Now
White Zircon Gem - 1.1ct Diamond-Cut (ID: 359588)

Round White Zircon

1.09 ct (total 4.34ctw)
6 mm
$ 62.80
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Pale Yellow Color-Change Diaspore Gem - 0.9ct Round Facet (ID: 478865)

Round Yellow Color-Change Diaspore

0.9ct
6 mm
$ 27.55
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Medium Pink Malaya Garnet Gem - 1ct Round Facet (ID: 495884)

Round Pink Malaya Garnet

1ct
6 mm
$ 43.78
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Yellowish Orange Zircon Gem - 1.3ct Diamond-Cut (ID: 481874)

Round Orange Zircon

1.3ct
5.9 mm
$ 27.23
Item in Stock
Click for Details
Compare
2 pcs
Add to Cart
Buy Now
Medium-Dark Orange Zircon Gem - 1.2ct Diamond-Cut (ID: 481932)

Round Orange Zircon

1.21 ct (total 2.42ctw)
6 mm
$ 52.71
Item in Stock
Click for Details
Compare
2 pcs
Add to Cart
Buy Now
Fire Orange Carnelian Gem - 0.9ct Round Cabochon (ID: 587101)

Round Orange Carnelian

0.88 ct (total 1.75ctw)
6 mm
$ 5.25
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Medium Orange Zircon Gem - 1.2ct Diamond-Cut (ID: 481894)

Round Orange Zircon

1.2ct
5.9 mm
$ 25.26
Item in Stock
Click for Details
Compare
2 pcs
Add to Cart
Buy Now
White Cat's Eye Moonstone Gem - 1ct Round Cabochon (ID: 558882)

Round White Cat's Eye Moonstone

0.99 ct (total 1.98ctw)
5.9 mm
$ 5.70
Item in Stock
Click for Details
Compare
2 pcs
Add to Cart
Buy Now
Medium Green Peridot Gem - 1ct Round Facet (ID: 537608)

Round Green Peridot

0.95 ct (total 1.90ctw)
6.1 mm
$ 28.50
Item in Stock
Click for Details
Compare
2 pcs
Add to Cart
Buy Now
Baby Blue Topaz Gem - 1.1ct Round Facet (ID: 444345)

Round Blue Topaz

1.07 ct (total 2.13ctw)
6.1 mm
$ 13.91
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Multicolor Opal Doublet Gem - 0.6ct Round Cabochon (ID: 544275)

Round Multicolor Opal Doublet

0.6ct
5.9 mm
$ 18.00
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Dark Red Ruby Gem - 0.8ct Round Facet (ID: 537541)

Round Red Ruby

0.8ct
5.9 mm
$ 250.96
Item in Stock
Click for Details
Compare
4 pcs
Add to Cart
Buy Now
White Zircon Gem - 1.1ct Diamond-Cut (ID: 359364)

Round White Zircon

1.14 ct (total 4.54ctw)
6 mm
$ 68.10
Item in Stock
Click for Details
31 pcs
Select pcs
Add to Cart
Buy Now
Fire Orange Carnelian Gem - 0.7ct Round Facet (ID: 513158)

1 pc (avg. 0.69 ct) Orange Carnelian

6.2 mm
$ 2.76
Item in Stock
Click for Details
Compare
4 pcs
Add to Cart
Buy Now
White Zircon Gem - 1.1ct Diamond-Cut (ID: 358882)

Round White Zircon

1.12 ct (total 4.49ctw)
5.9 mm
$ 64.75
Item in Stock

Round Shape 6 mm Gems

Why Shop For 6 mm Calibrated Stones?

6 mm Calibrated Stones are excellent for Rings, Pendants, and Earrings. Our selection of 6mm stones is excellent for any of the ideas mentioned above and many others. At GemSelect you have the convenience of shopping for numerous Gem Types all in the calibrated sizes you desire.

What are Some uses for 6 mm Stones?

Birthstone gifts and Anniversary gifts are excellent ideas for our stones if you're planning a design project. Many collectors purchase stones of calibrated sizes too as they prefer to display gems mounted in jewelry!

What colors are GemSelects 6 mm Stones?

Our 6 mm Calibrated Natural Gemstones are available mainly in Orange, Red, White and Blue colors with; Zircon, Tanzanite, Amazonite, Sapphire, Apatite representing the Blues, and Peridot, Sapphire, Agate, and Pyrope Garnet representing the Greens.

You will also find a selection of Color Change, Cream, Grey, Green, Pink, Violet, Yellow, and Brown Smoky Quartz Gems in 6 mm size!

GemSelect's natural gemstone Multicolored lots are expertly color matched and available in calibrated sizes.

How can I Buy them?

GemSelects 6mm calibrated gemstones sell as single stones, lots or parcels, and pairs. Our availability in the 6mm gemstones range from Faceted gems to Cabochons and are also available drilled. Additionally, they come in round and sphere shape.

Feel free to shop our selections by weight in carats, size, color, origin, treatments, and gem type.

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 -> 8 star ratings
I liked the photos which helps make the decisions, the shipping rate, and the ease of the process. I am looking forward to seeing the items.
Posted By Ray2 in August, 2020
Source: Bizrate
Overall Rating -> 10 star ratings
I purchased several green chrome tourmaline loose stones from GemSelect Twice over the last 2 years. Those stones made my wife' wedding ring, necklace and earings. Created by the goldsmith at Maus jewelers. . . Masterpieces of God's creation and mans creativity to the glory of God's love! they couldn't have done it without starting here first! FANTASTIC!!!
Posted By TourmalineDreams in August, 2020
Source: Bizrate
Overall Rating -> 9 star ratings
It really depends on the product for the end Highway arrives and the true colors the shape the size in all those things piano well I will definitely suggest to other people about gem select.
Posted By Sgt.Meds in August, 2020
Source: Bizrate
Overall Rating -> 10 star ratings
Easy to look at a lot of gems. Nice selection of sizes and prices. Fun to shop there.
Posted By Moose in August, 2020
Source: Bizrate
Overall Rating -> 10 star ratings
GemSelect has a great variety of gemstones at a great price. Fast delivery.
Posted By Rme gems in August, 2020
Source: Bizrate
Overall Rating -> 10 star ratings
Absolute Perfection ! Gemselects web site makes it is so easy to locate what ever you are looking for.
Posted By Tinbien in August, 2020
Source: Bizrate
Sign up for our Newsletter

Article Categories

Total Number of Articles: 1316

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
  • 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 Fruit
  • Carved Half Heart
  • Carved Half Moon
  • 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 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 (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 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
  • 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
  • Sapphire
  • Emerald
  • Ruby
  • Aquamarine
  • Zircon
  • Opal
  • Topaz
  • Tourmaline
  • Garnet
  • Amethyst
  • Citrine
  • Tanzanite
All Gemstones (143)
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
  • Andesine Labradorite
  • Apatite
  • Aquamarine
  • Aventurine
  • Beryl
  • Black Opal
  • Bloodstone
  • Boulder Opal
  • Calcite
  • Carnelian
  • Cat's Eye Apatite
  • Cat's Eye Aquamarine
  • Cat's Eye Augite
  • Cat's Eye Gemstones
  • Cat's Eye Moonstone
  • Cat's Eye Opal
  • Cat's Eye Scapolite
  • Chalcedony
  • Charoite
  • Chocolate Opal
  • Chrome Diopside
  • Chrome Tourmaline
  • Chrysoberyl
  • Chrysocolla
  • Chrysoprase
  • Citrine
  • 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
  • Moss Opal
  • Mother of Pearl
  • Mystic Topaz
  • Nuummite
  • Obsidian
  • 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
  • Sugilite
  • 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