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 8 Carat Gems

(1495)
Gem Type Weight Size Clarity Price Origin
More
Single
Pairs
Lots
Faceted
Cabochons
Sort By:
Clear All
Click for Details
Compare
2 pcs
Add to Cart
Buy Now
Bi-color Tourmaline Gem - 8.5ct Carved Flower (ID: 522381)

Flower Cut Bi-color Tourmaline

8.48 ct (total 16.95ctw)
18.1 x 9.4 mm
$ 277.47
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Multicolor Coral Gem - 7.7ct Round Cabochon (ID: 515796)

Round Multicolor Coral

7.7ct
14.2 mm
$ 22.31
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Multicolor Ammolite Gem - 7.8ct Fancy Cabochon (ID: 377655)

Fancy Multicolor Ammolite

7.8ct
18.9 x 12.5 mm
$ 77.70
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Golden-Orange Cat's Eye Opal Gem - 8.8ct Oval Cabochon (ID: 494024)

Oval Golden Cat's Eye Opal

8.8ct
16.9 x 11.5 mm
$ 26.25
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Multicolor Fire Agate Gem - 8.3ct Shark Fin Cabochon (ID: 487191)

Fancy Multicolor Fire Agate

8.3ct
17.4 x 11.2 mm
$ 63.77
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Light Cherry Pink Kunzite Gem - 7.7ct Oval Facet (ID: 427052)

Oval Pink Kunzite

7.7ct
14 x 9.9 mm
$ 192.25
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Multicolor Coral Gem - 8.3ct Oval Cabochon (ID: 515798)

Oval Multicolor Coral

8.3ct
15.5 x 11.5 mm
$ 23.87
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Sky Blue Topaz Gem - 8ct Carved Fruit (ID: 479796)

Fancy Blue Topaz

8ct
16.1 x 9.3 mm
$ 40.00
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Pine Green Malachite Gem - 8.8ct Baguette Sugarloaf Cabochon (ID: 370567)

Baguette Green Malachite

8.8ct
12 x 10.2 mm
$ 9.58
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Click for Product Video (398361)
Medium Yellow Apatite Gem - 7.8ct Cushion-Cut (ID: 398361)

Cushion Yellow Apatite

7.8ct
12.2 x 11.8 mm
$ 372.79
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
White Quartz Cat's Eye Gem - 7.8ct Round Cabochon (ID: 360634)

Round White Quartz Cat's Eye

7.8ct
11.8 mm
$ 31.08
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Click for Product Video (439656)
Light Blue Green Hemimorphite Druzy Gem - 7.9ct Fancy Crystal Cluster (ID: 439656)

Fancy Turquoise Hemimorphite Druzy

7.9ct
13.2 x 11.5 mm
$ 118.65
Item in Stock
Click for Details
Compare
2 pcs
Add to Cart
Buy Now
Click for Product Video (446934)
Egyptian Blue Opal Doublet Gem - 7.8ct Fancy Cabochon (ID: 446934)

Fancy Blue Opal Doublet

7.84 ct (total 15.67ctw)
26.1 x 11 mm
$ 235.05
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Multicolor Fire Agate Gem - 8.2ct Fancy Cabochon (ID: 475677)

Fancy Multicolor Fire Agate

8.2ct
18.5 x 12.8 mm
$ 65.43
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Multicolor Fire Agate Gem - 8.6ct Fancy Cabochon (ID: 486975)

Fancy Multicolor Fire Agate

8.6ct
17.6 x 11.1 mm
$ 66.32
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Multicolor Quartz With Marcasite Gem - 8ct Pear Cabochon (ID: 521242)

Pear Multicolor Quartz With Marcasite

8ct
21.6 x 9.8 mm
$ 48.06
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Light Pink Morganite Gem - 7.9ct Carved Marquise Cabochon (ID: 472752)

Marquise Pink Morganite

7.9ct
21.6 x 9.1 mm
$ 82.45
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Multicolor Fire Agate Gem - 8.6ct Fancy Cabochon (ID: 487160)

Fancy Multicolor Fire Agate

8.6ct
14.8 x 12.6 mm
$ 66.56
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Multicolor Coral Gem - 8.3ct Pear Cabochon (ID: 515799)

Pear Multicolor Coral

8.3ct
21.3 x 13.7 mm
$ 23.96
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Multicolor Fire Agate Gem - 8.1ct Fancy Cabochon (ID: 487187)

Fancy Multicolor Fire Agate

8.1ct
15.6 x 11.9 mm
$ 62.23
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Buy Now
Multicolor Ruby in Fuchsite Gem - 7.9ct Marquise Slice (ID: 385158)

Marquise Multicolor Ruby in Fuchsite

7.9ct
21.3 x 11.4 mm
$ 53.74
Item in Stock
8 Carat Gems
Buy gems by carat weight. Shop from our extensive range of beautiful, natural 8 carat gems. Browse the largest selection of natural loose colored gemstones available in 8 carats. Our large gemstone selection includes many popular gem types, such as amethyst, aquamarine, topaz, emerald and garnet, and lesser-known gems, including sphene, ruby in fuchsite and sphalerite. From here, you can use our filters at the top or on the left-hand side to find gems by gem type, color, shape, cut and so on. For example, select 'peridot' to see all of our 8-carat peridot gems. Select 'blue' to shop for 8-carat blue gems. You can also filter by single, pairs, lots, faceted gems or cabochons by using the check boxes at the top.
Certified Customer Reviews
Overall Rating -> 10 star ratings
Nice inventory, decent pricing. Site is easy to navigate.
Posted By Bob in December, 2019
Source: Bizrate
Overall Rating -> 10 star ratings
I love GemSelect! Every stone that I ever purchased has been carefully packaged, and sometimes comes with origin info. The stone I just ordered is for my engagement ring, because my Fiance is making my ring! I am so amazed with the selection that this site has, and I am so impressed with the prices.
Posted By KittyKat in December, 2019
Source: Bizrate
Overall Rating -> 9 star ratings
Site layout was great. Item description was good but this is first purchase so I will have to wait and see how satisfied I am with product. But this step of process was great!
Posted By Leell in December, 2019
Source: Bizrate
Overall Rating -> 9 star ratings
i saw a program on the science channel about varieties of fluorite - a special on John 'something' from perhaps wales and varieties of colors... and i was chatting w/ friend who sent me link to your site
Posted By DrLaura in December, 2019
Source: Bizrate
Overall Rating -> 9 star ratings
Well I was looking for the perfect stone to set in a ring for my partner. I found this Garnet on a website called Gemselect and it captured my eye. I had to have it for her. It looked as perfect as she does. I got the stone I wanted for $150 shipped straight to me. It’ll be the perfect Christmas present
Posted By Willy Wonka in December, 2019
Source: Bizrate
Overall Rating -> 10 star ratings
Always enjoy browsing the website. It's super easy to use and very informative. Second order I have placed and will buy again in the future.
Posted By Negem in December, 2019
Source: Bizrate
Sign up for our Newsletter
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 with Hole
  • Carved Baguette
  • 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 Owl
  • Carved Pear
  • Carved Pear Cabochon
  • Carved Rhomb
  • Carved Rose
  • Carved Rose with Half Drilled Hole
  • Carved Round
  • 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 Cut
  • 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 Slice
  • Drop / Pear
  • 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 Carved Leaf
  • 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 Sphere
  • Heart Cabochon
  • Heart Checkerboard (double sided)
  • Heart Facet
  • Heart Rose-Cut
  • Hexagon Cut
  • Marquise Buff-Top
  • Marquise Cabochon
  • Marquise Checkerboard
  • Marquise Checkerboard (double sided)
  • Marquise Facet
  • Marquise Mixed Cut
  • Marquise Slice
  • Marquise Sugarloaf Cabochon
  • Octagon / Scissor Cut
  • Octagon Cabochon
  • Octagon Checkerboard
  • Octagon Facet
  • Octagon Step 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
  • Pentagon Facet
  • 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 Drilled Checkerboard (Double Sided)
  • Round Drilled Rondelle
  • Round Facet
  • Round Mixed Cut
  • 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 Checkboard
  • Spherical
  • Square / Scissor Cut
  • Square Cabochon
  • Square Facet
  • Square Rose-Cut
  • Square Step-Cut
  • Square Sugarloaf Cabochon
  • Square with Hole
  • Tapered Baguette
  • Tapered Baguette Cabochon
  • Teardrop Cabochon
  • Trapezoid
  • Trapezoid Cabochon
  • Trapezoid Checkerboard
  • Triangle
  • Triangle Cabochon
  • 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 (144)
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
  • 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
  • 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 Quartz
  • 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
  • Rhodonite
  • Rose Quartz
  • Rubellite Tourmaline
  • Ruby
  • Ruby in Fuchsite
  • Ruby-Zoisite
  • Rutile Quartz
  • Sapphire
  • 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