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Buy Quartz Gems

(5675)
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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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2 pcs
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Lemon Yellow Quartz Gem - 10ct Carved Leaf (ID: 470480)

Fancy Yellow Quartz

9.97 ct (total 19.94ctw)
15 x 14.7 mm
$ 69.79
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1 pc
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Bumblebee Yellow Quartz Gem - 146.4ct Oval Facet (ID: 341782)

Oval Yellow Quartz

146.4ct
38.1 x 30.8 mm
$ 305.98
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1 pc
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Umber Brown Smoky Quartz Gem - 9.7ct Asscher Cut (ID: 397345)

Octagon / Emerald Cut Brown Smoky Quartz

9.7ct
13 x 13 mm
$ 48.45
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24 pcs
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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
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1 pc
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Light Pink Strawberry Quartz Gem - 8.9ct Oval Facet (ID: 473006)

Oval Pink Strawberry Quartz

8.9ct
14.7 x 12.3 mm
$ 60.63
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1 pc
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Medium-Light Yellow Quartz Gem - 16.5ct Asscher Cut (ID: 395105)

Octagon / Emerald Cut Yellow Quartz

16.5ct
14.9 x 14.9 mm
$ 82.45
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1 pc
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Chocolate Brown Smoky Quartz Gem - 13.2ct Oval Checkerboard (double sided) (ID: 416938)

Oval Brown Smoky Quartz

13.2ct
20.1 x 15 mm
$ 19.84
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1 pc
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Very Light Pink Rose Quartz Gem - 3.1ct Fantasy Carved Leaf (ID: 474486)

Flower Cut Pink Rose Quartz

3.1ct
13.1 x 9 mm
$ 6.12
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1 pc
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Light Yellow Quartz Gem - 7ct Fantasy Carved Leaf (ID: 499612)

Flower Cut Yellow Quartz

7ct
13 x 12.6 mm
$ 21.06
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1 pc
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Brownish Yellow Quartz Gem - 29.1ct Oval Cabochon (ID: 406011)

Oval Yellow Quartz

29.1ct
23.5 x 17.2 mm
$ 34.92
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1 pc
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Chocolate Brown Smoky Quartz Gem - 7.3ct Asscher Cut (ID: 394828)

Octagon / Emerald Cut Brown Smoky Quartz

7.3ct
12.1 x 12 mm
$ 36.70
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1 pc
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Earthy Reddish Pink Strawberry Quartz Gem - 9.2ct Oval Cabochon (ID: 554182)

Oval Pink Strawberry Quartz

9.2ct
15.7 x 11.9 mm
$ 52.64
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1 pc
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Light Green Rutile Quartz Gem - 10.1ct Oval Cabochon (ID: 439079)

Oval Green Rutile Quartz

10.1ct
20.3 x 11.1 mm
$ 21.81
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3 pcs
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Light Rose Pink Rose Quartz Gem - 2.1ct Asscher Cut (ID: 395185)

Octagon / Emerald Cut Pink Rose Quartz

2.09 ct (total 6.27ctw)
8.2 x 8.1 mm
$ 31.35
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1 pc
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Light Pink Rose Quartz Gem - 20ct Marquise Facet (ID: 525235)

Marquise Pink Rose Quartz

20ct
31.1 x 14.2 mm
$ 32.97
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4 pcs
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Light Brown Smoky Quartz Gem - 1.5ct Drilled Faceted Sphere (ID: 479521)

Sphere / Ball Brown Smoky Quartz

1.54 ct (total 6.14ctw)
6 mm
$ 6.51
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Clear with Brown Rutile Quartz Gem - 5.5ct Round Cabochon (ID: 538964)

Round Brown Rutile Quartz

5.5ct
11.1 mm
$ 10.90
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1 pc
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Light Honey Yellow Quartz Gem - 25ct Round Facet (ID: 605469)

Round Yellow Quartz

25ct
19.9 mm
$ 88.11
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1 pc
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Medium Brown Smoky Quartz Gem - 5.2ct Oval Rose-Cut (ID: 578560)

Oval Brown Smoky Quartz

5.2ct
11 x 10.1 mm
$ 13.56
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2 pcs
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Medium Yellow Quartz Gem - 2ct Carved Flower (ID: 535182)

Flower Cut Yellow Quartz

1.97 ct (total 3.94ctw)
9.2 x 9.1 mm
$ 6.54
Item in Stock

About Quartz

Quartz Gemstone Information - History, and Introduction

Quartz is one of the essential minerals on earth and makes up one of the most popular gemstone groups in the world of colored stones. It is the second most abundant mineral found in Earth's continental crust, second only to the feldspars. The name 'quartz' is thought to come from the German word 'quarz,' which likely originated from the Slavic and Polish words meaning 'hard.' The name is descriptive regarding quartz being the definitive mineral that measures 7 on the Mohs scale of hardness. Other gemstones are often compared to quartz when it comes to classifying them as being hard, soft or durable.

Quartz gemstones are beautiful, durable and hard. Also in most cases, quartz is relatively inexpensive and available in enormous sizes. Some quartz varieties can be scarce, while others are very readily available. Quartz is an extremely versatile material that can be cut and carved into many shapes and sizes. For centuries quartz has been used in the creation of jewelry and ornamental objects. Today, quartz is not only one of the essential gemstones in the colored stone trade, but it also has many important industrial usages.

Quartz Gemstone Color

The color of macrocrystalline quartz is as variable as the spectrum, but clear quartz is by far the most common color followed by white or cloudy quartz. Purple (amethyst), pink (rose quartz), gray or brown to black (smoky quartz) are also typical. Cryptocrystalline quartz varieties can be multicolored. In artificial light, quartz does not display a desirable quality. It looks best in daylight, particularly after sunrise and just before sunset. The deep colors are the most valuable.

Quartz Gemstone Clarity and Luster

High-quality quartz is transparent, which means that the light passes through the stone unhindered. In translucent quartz, the passage of light through the gemstone becomes weakened by the gem material. The best quality quartz is 'clean,' free from inclusions of any kind. Since quartz is plentiful, there is little reason to go for stones with visible inclusions, except those that define the character of the gemstone (e.g., cat's eye, hawk's eye or scenic stones). Luster is glassy to vitreous as crystals, while cryptocrystalline forms are usually waxy to dull, but can be vitreous. Crystals are transparent to translucent; cryptocrystalline forms are generally translucent or opaque.

Quartz Gemstone Cut and Shape

Due to the roughness of the color distribution in the crystals, quartz is often cut as brilliant rounds to maximize their color. Other cuts are ideal when the color is better distributed. Quartz is available in a wide range of calibrated sizes and shapes, including many fancy shapes.

Quartz Gemstone Treatment

Colorless quartz is always untreated. Colored stones can occasionally be enhanced by dyes (as in the case of agate), irradiation (bombardment with low-level radioactivity), or heating. Some gemstones may also be impregnated or coated with wax, clear resin and even foil for enhanced color, luster, and stability. Synthetic quartz is also abundant. Naturally colored quartz typically exhibits color zoning.

Quartz Gemstone and Jewelry Design Ideas

Quartz is the ideal jewelry gemstone. It is readily available and relatively affordable. Even large stones can be bought at great prices. Quartz is also one of the few colored stones that you'll find in almost every jewelry retail store. Amethyst and citrine are official birthstones and are often used in birthstone jewelry. Since most quartz is untreated, there are many astrological uses for different types of quartz gemstones (carnelian for example), so you can find many planetary jewelry designs featuring quartz. Quartz is also often used for the making of fine timepieces, including bezels and moving components.

Quartz is durable enough for wearing in everyday quartz gemstone rings, and it is also ideal for any other jewelry application available. Men or women can wear quartz gemstones as they can be found in just about any color imaginable. You can find quartz in any style of cut and shape, from cabochons to faceted stones, as well as tumbled and drilled beads. Quartz is also often carved into interesting ornamental designs, such as paperweights, animal carvings or as seals, intaglios and insignias.

Certified Customer Reviews
Overall Rating -> 10 star ratings
The selection of gems they had are great and the prices are fair. It is easy to purchase.
Posted By Mmorric in March, 2021
Source: Bizrate
Overall Rating -> 10 star ratings
All good
Posted By Brandyn in March, 2021
Source: Bizrate
Overall Rating -> 8 star ratings
I’m excited about the stone, hoping it’s beautiful in real life. We’ll see when I get it, if it’s great I’ll buy more from this company
Posted By Brooker in March, 2021
Source: Bizrate
Overall Rating -> 10 star ratings
Loved all my items def will buy again and def will share the company site
Posted By TEDDY in February, 2021
Source: Bizrate
Overall Rating -> 9 star ratings
Love the selection of gems, prices are fair
Posted By Cj in February, 2021
Source: Bizrate
Overall Rating -> 9 star ratings
Gem select has a great selection of Gems, very defined pictures of item and easy process to filter down selection including, gem, color, type, size and weight.
Posted By KingFarm in February, 2021
Source: Bizrate
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Article Categories

Total Number of Articles: 1452

More Shapes
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  • Cushion Concave Cut
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  • Cushion Sugarloaf Cabochon
  • Cushion-Cut
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  • Drilled Faceted Sphere
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  • Octagon / Scissor Cut
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  • Oval Concave Cut
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  • Oval Diamond-Cut
  • Oval Facet
  • Oval Fancy Facet
  • Oval Fantasy Concave Cut
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  • Oval Portuguese-Cut
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  • Pear Concave Cut
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  • Pencil
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  • Rhomb Facet
  • Rondelle
  • Round Buff-Top
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  • Shark Fin Cabochon
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Popular Gemstones
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All Gemstones (141)
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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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