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Buy Concave Cuts Gems

(346)
Gem Type Weight Size Clarity Price Origin
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Light Green Quartz Gem - 7ct Marquise Concave Cut (ID: 598907)

Marquise Green Quartz

7ct
17 x 11.9 mm
$ 25.37
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2 pcs
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Medium Brown Smoky Quartz Gem - 8.3ct Round Concave Cut (ID: 611897)

Round Brown Smoky Quartz

8.26 ct (total 16.52ctw)
14 mm
$ 49.56
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1 pc
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Light Yellow Quartz Gem - 9.8ct Round Concave Cut (ID: 602077)

Round Yellow Quartz

9.8ct
15.1 mm
$ 35.95
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Light Pink Rose Quartz Gem - 5.1ct Round Concave Cut (ID: 599365)

Round Pink Rose Quartz

5.1ct
12 mm
$ 18.66
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Wood Brown Smoky Quartz Gem - 10.4ct Octagon Concave Cut (ID: 599171)

Octagon / Emerald Cut Brown Smoky Quartz

10.4ct
16 x 12.1 mm
$ 276.05
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Pineapple Yellow Quartz Gem - 62ct Oval Concave Cut (ID: 458181)

Oval Yellow Quartz

62ct
30.7 x 23.8 mm
$ 153.66
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1 pc
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Warm Brown Smoky Quartz Gem - 5.1ct Round Concave Cut (ID: 599135)

Round Brown Smoky Quartz

5.1ct
12 mm
$ 12.63
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1 pc
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Warm Brown Smoky Quartz Gem - 9.3ct Round Concave Cut (ID: 602198)

Round Brown Smoky Quartz

9.3ct
15.1 mm
$ 34.08
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Greenish Yellow Quartz Gem - 6.8ct Octagon Concave Cut (ID: 601510)

Octagon / Emerald Cut Yellow Quartz

6.8ct
12.1 x 11.9 mm
$ 25.13
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Light Mocha Smoky Quartz Gem - 14.2ct Octagon Concave Cut (ID: 599331)

Octagon / Emerald Cut Brown Smoky Quartz

14.2ct
16.2 x 16 mm
$ 35.55
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Yellowish Green Quartz Gem - 6.3ct Marquise Concave Cut (ID: 598906)

Marquise Green Quartz

6.3ct
17 x 11.9 mm
$ 22.94
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2 pcs
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Deep Magenta Mystic Topaz Gem - 3ct Oval Concave Cut (ID: 490089)

Oval Pink Mystic Topaz

2.97 ct (total 5.93ctw)
9.9 x 8 mm
$ 46.25
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Light Peach Rose Rose Quartz Gem - 5ct Round Concave Cut (ID: 598883)

Round Pink Rose Quartz

5ct
12 mm
$ 18.04
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Lemon Yellow Quartz Gem - 9.5ct Marquise Concave Cut (ID: 600684)

Marquise Yellow Quartz

9.5ct
19.2 x 12.9 mm
$ 34.43
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Bumblebee Yellow Quartz Gem - 38.3ct Oval Concave Cut (ID: 458215)

Oval Yellow Quartz

38.3ct
22.6 x 20.3 mm
$ 94.88
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Lemon Yellow Quartz Gem - 6.1ct Round Concave Cut (ID: 600302)

Round Yellow Quartz

6.1ct
12.1 mm
$ 22.08
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2 pcs
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Dark Pink Mystic Topaz Gem - 2.9ct Oval Concave Cut (ID: 490088)

Oval Pink Mystic Topaz

2.87 ct (total 5.74ctw)
10.2 x 8.2 mm
$ 44.77
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Click for Product Video (602069)
Light Yellow Quartz Gem - 10.7ct Round Concave Cut (ID: 602069)

Round Yellow Quartz

10.7ct
15 mm
$ 39.38
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2 pcs
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Medium-Dark Pink Mystic Topaz Gem - 3.2ct Oval Concave Cut (ID: 490104)

Oval Pink Mystic Topaz

3.22 ct (total 6.44ctw)
10.1 x 8.1 mm
$ 50.23
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2 pcs
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Lemon Yellow Quartz Gem - 3.1ct Round Concave Cut (ID: 600525)

Round Yellow Quartz

3.12 ct (total 6.24ctw)
10 mm
$ 22.59
Item in Stock
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Medium Yellow Quartz Gem - 8.8ct Round Concave Cut (ID: 599376)

Round Yellow Quartz

8.8ct
14.1 mm
$ 32.09
Item in Stock
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About Concave Cuts

Concave cutting involves cutting facets that are three dimensional (curved). The technology to cut concave facets was developed by the American inventor Douglas Hoffman around 1990. It allows conical-shaped, three dimensional facets to be cut, so that each facet has depth as well as length and breadth. The result is that more of the ambient light is refracted and returned to the eye in the form of brilliance.

In order to find the concave-cut gems that you require, filter the results further by using the left-hand menu. You can buy concave-cut gems by gem type, color and shape. By using the top menu, you can search by carat weight, size, price, origin and other factors, to enable you to find the exact concave-cut gems that you are looking for. All items are in stock and ready to be shipped.
Certified Customer Reviews
Overall Rating -> 10 star ratings
Always a good transaction when dealing with GemSelect.
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Overall Rating -> 9 star ratings
Good selection, website is easy to navigate
Posted By Dude mcguy in April, 2021
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Overall Rating -> 9 star ratings
I can’t comment on my experience until I receive the item. When I receive the item,if it was well represented by the picture, I will be very happy. I will share my experience with all my friends and I will definitely use gem select again.
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Overall Rating -> 9 star ratings
very clean easy and nice
Posted By Chris in April, 2021
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Overall Rating -> 8 star ratings
I was able to find a few options but I wish the had a coin or something in the photo to compare the size
Posted By Kristine in April, 2021
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Article Categories

Total Number of Articles: 1733

More Shapes
  • Asscher Cut
  • Baguette / Scissor Cut
  • Baguette Cabochon
  • Baguette Checkerboard
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  • Ball Facet
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  • Cushion Buff-Top
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  • Cushion Checkerboard
  • Cushion Checkerboard (double sided)
  • Cushion Concave Fantasy Cut
  • Cushion Crystal Cluster
  • Cushion Mixed Cut
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  • Cushion Shape Sugarloaf Cabochon
  • Cushion Sugarloaf Cabochon
  • Cushion-Cut
  • Diamond-Cut
  • Drilled Faceted Sphere
  • Drilled Sphere
  • Drilled Square Rondelle
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  • 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 Cut
  • Fancy Facet
  • Fancy Fantasy Carving
  • Fancy Slice
  • Fancy-Cut
  • Fantasy Carved Flower
  • Fantasy Carved Flower Cut
  • Fantasy Carved Leaf
  • Flower Carving
  • Flower-Cut
  • Half Cylinder Cabochon
  • Half Heart Cabochon
  • Half Heart Facet
  • Half Moon Cabochon
  • Half Moon Facet-Cut
  • Half Moon Faceted
  • Half-Drilled Briolette
  • Half-Drilled Half Cylinder Cabochon
  • Half-Drilled Heart Facet
  • Half-Drilled Sphere
  • Heart Buff-Top
  • Heart Cabochon
  • Heart Checkerboard
  • Heart Checkerboard (double sided)
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  • Marquise Concave Cut
  • Marquise Facet
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  • Octagon / Scissor Cut
  • Octagon Buff-Top
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  • Octagon Checkerboard
  • Octagon Concave Cut
  • Octagon Facet
  • 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 Rose-Cut (double sided)
  • 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 Drilled Checkerboard (Double Sided)
  • Round Drilled Rondelle
  • Round Facet
  • Round Mixed-Cut
  • Round Petal Cut
  • Round Portuguese-Cut
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  • Round Slice
  • Shark Fin Cabochon
  • Shield Cabochon
  • 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
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  • Trillion Shape Sugarloaf Cabochon
  • Undrilled Briolette Teardrop
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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