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Alexandrite Lab Grown Gemstones

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Alexandrites are amazing gemstones for jewelry, because faceted gems undergo a dramatic color change in different types of light. An example of this property is shown at the left. In warm indoor incandescent or candle lighting, this gem is a rich purplish red color.  In bright daylight, it is greenish blue.  To see the extremes of the color change one would need to be in environments in which these light sources are pure, but nonetheless, significant color difference can easily be observed in various lighting. Our lab grown or created man-made alexandrite, like natural alexandrite,  is a member of the chrysoberyl family which has the chemical composition beryllium aluminum oxide (BeAl2O4).   Be cautious when buying lab alexandrite, because many dealers indiscriminately use the term for imitations (such as color-change corundum).  Chrysoberyl occurs in a range of colors including green, yellow, and brown, and often exhibits a cat's eye chatoyancy.  The name alexandrite is reserved for the very rare and valuable color-change variety of chrysoberyl . The best natural chrysoberyl, including alexandrite, has been found in the Ural mountains of Russia.  In fact, the color-change variety is named after Prince Alexander of Russia because it was discovered in 1830 on the day of his coming of age.  Natural alexandrite is so rare that few people have ever seen one, and its value is on a par with emeralds, rubies, and sapphires. Our lab-grown crystals have higher perfection than is usually seen in natural stones.  We are able to offer them at a small fraction of the cost of comparable natural stones.   We categorize the degree of color change in five subjective ranges: excellent, very good, good, fair, and minimal.  The price per carat varies accordingly.  Stones with little color change tend toward a pleasant   wine-red color.  We can set these gemstones for you in silver or  gold jewelry mountings.  Ask for details.  You can click on any underlined Item # to see a photo of the gem.  Use your browser's "back" button to return to the list.  Please be aware that it is difficult to capture the true colors of alexandrite in our photographs because they depend so much on the type of lighting.

Item#

Item Description

Price

21000

Round brilliant cut Laboratory grown color change Alexandrite

21004

4 mm round The color change is excellent in these eleven ten six four three 4mm round lab alexandrites faceted in a Portuguese brilliant flower cut. Perfect clarity.  Great for stud earrings.  Average weight is 0.31 ct. Priced at $85/ct.  Price shown is per gem.  new  

$26.35

21005

5 mm round These six four two one 5-mm round brilliant-cut alexandrites are very nice. The average weight of these gems is 0.62 ct. They have excellent color change (see photo), and excellent clarity.  Hardness is 8.5 on the Mohs scale (next to Ruby at 9).  Priced at $85/ct.  Price is per stone.    new  

$52.70

21006

6 mm round These alexandrites exhibit excellent color change.  They are 6mm round Portuguese brilliant flower cut, lab grown gems.  Eye clean.  There are 4 2 1 available, with an average weight of 0.93 ct. Priced at $85/ct. Price shown is per stone.  new  

$79.05

21007 7 mm round We have two of these 7mm round lab alexandrites faceted in a Portuguese brilliant flower cut, with excellent color change and clarity.  The average weight is 1.62 ct. Priced at $85/ct., and the price is per gem.

  new  

$137.70

21008

8 mm round There are four three one of these 8mm round, lab grown alexandrite Portuguese brilliant flower cut gems with excellent color change and clarity. The average weight is 2.36 ct. Priced at $85/ct. Very nice gems, in a versatile size. The price shown is per stone. new

$200.60

21010 10 mm round These are very impressive gems, and two are available. The 10mm round size Portuguese brilliant flower cut lab-grown alexandrite would be nice as a man's or a ladies ring, or as a pendant. They have excellent color change and clarity. The average weight is 4.60 ct. Priced at $85/ct. The price shown is per gem.

new

$391.00

21000e

10 mm round Lab grown alexandrite gems. Eye-clean. Only minimal color change, but the color is a ruby-like wine red.  The hardness of 8.5 exceeds that of most colored gemstones except ruby, sapphires and diamond.  Faceted in a 10-mm round Portuguese brilliant flower cut. The average weight is 4.46 ct. Priced at only $25/ct due to the minimal color change.  Two One available.  Price shown is per gem.

$111.50

21100

Oval brilliant cut Lab grown color-change Alexandrite

21164

6x4 mm oval There are five three 6x4mm oval Portuguese brilliant flower faceted, created alexandrites available. Excellent color change and very clean. Weight is  0.53 ct., priced at $85/ct. (Price shown at right is per gem.) The smaller size makes these affordable even with the very nice color change.

 new  

$45.05

21175

7x5 mm oval The average weight of these 7x5-mm oval synthetic alexandrites is 0.96 ct. and there are 6 of them available.  Faceted in a  Portuguese brilliant flower cut with excellent color change and clarity. Priced at $85/ct. The price shown is per gemstone.

 new  

$81.60

21186 8x6 mm oval 
 
We have six 8x6mm oval lab alexandrites faceted in a Portuguese brilliant flower cut. Nice for earrings or a small ring, especially with their robust hardness of 8.5 on the Mohs scale. Excellent color change and clarity. The average weight is 1.40 ct., priced at $85/ct. The price is per gemstone.

   new   

$119.00

21197 9x7 mm oval Excellent color change in a 9x7-mm oval Portuguese brilliant flower cut synthetic alexandrite gemstone. Six available. Priced at $85/ct. The average weight is 2.26 ct., and the price shown is per stone.  new  $192.10
21108 10x8 mm oval There are 8 of these 10x8-mm oval Portuguese brilliant flower cut synthetic alexandrite gemstones available. They're priced at $85/ct.  Excellent color change as well as clarity.  The average weight is 2.92 ct.  The price shown is per stone.  new  $275.40
21119cl 11x9 mm oval The light color tone of these four three 11x9-mm oval lab grown alexandrites works to good advantage for letting more light into the gemstone.  The color under incandescent light is a nice rose red, changing to a bluish green with flashes of plum under daylight.  The average weight is 4.53 ct. Priced at $85/ct.  Price shown is per gemstone.  

$385.05

21119 11x9 mm oval 11x9-mm lab alexandrites with excellent color change, faceted in an oval Portuguese brilliant flower cut.  There are three two available.  The hardness of these gems is 8.5 on the Mohs scale (only ruby, sapphire, and diamond are harder) and they hold up well to rough wear.  The average weight is 4.40 ct. Priced at $85/ct.   new 

$374.00

21120c 12x10 mm oval For large alexandrites, it can be advantageous to have a light color tone to show off the interior of the gemstone to better advantage and make it more lively under low-level lighting conditions.  These 3 2 1  oval 12x10-mm created alexandrite gemstones look great under all lighting conditions.  They change from a rosy red in warm lighting to a bluish green with flashes of plum in daylight.  The average weight is 5.80 ct. Priced at $85/ct.  

$493.00

21120 12x10 mm oval These five 12x10mm oval lab alexandrites have a gorgeous deep color along with excellent color change and clarity. They're faceted in a Portuguese brilliant flower cut, and on average weigh 5.75 ct. Priced at $85/ct. The price shown is per gemstone. new  

$488.75

21140 14x10 mm oval The average weight of these five four three gorgeous lab alexandrites is 7.0 ct. They are faceted in a 14x10-mm oval Portuguese brilliant flower cut.  Excellent color change and clarity.  Priced at $85/ct. The price shown at the right is per stone.  new 

$595.00

21300

Antique cushion cut Laboratory-grown color-change Alexandrite

21386

8x6 mm cushion This is a nice cut, a little different from the usual oval or rectangular styles   We have two one 8x6 mm cushion-cut, lab grown alexandrites, again with excellent color change and clarity. The triangular facets on crown and pavilion give a lot of life to these stones. The average weight is 1.79 ct., priced at $85/ct. The price shown is per gem. new

$152.15

21308 10x8 mm cushion There are 2 of these 10x8-mm cushion cut synthetic alexandrite gemstones available. They're priced at $85/ct.  Excellent color change as well as clarity.  The average weight is 3.56 ct.  The price shown is per stone.  new  $302.60

21400

Square cut Laboratory-grown color-change Alexandrite

21404

4 mm square cut-corner
radiant cut
We have two one of these small 4mm square lab alexandrites faceted in a cut-corner radiant cut, with excellent color change and clarity. The average weight is 0.39 ct. Priced at $85/ct, and the price shown is per gem.

new 

$33.15

21405

5 mm square cut-corner
radiant cut
In the 5mm size, we have two lab alexandrites available in a square cut-corner radiant cut. The degree of color change and the clarity are both excellent. The average weight is 0.73 ct. Priced at $85/ct, and the price shown is per stone.

new 

$62.05

21406p

6 mm square princess cut 
 
These two one matched 6mm princess cut lab alexandrites have impressive color change. Clean under a 10x loupe, with high durability (8.5 on the Mohs hardness scale). This makes them excellent for use as jewelry. The average weight is1.31 ct. Priced at $85/ct. The price shown is per stone.

new 

$111.35

21406 6 mm square cut-corner
radiant cut 
 
There are four of these 6mm square cut-corner radiant style synthetic alexandrites. These would be perfect for use in a variety of types of jewelry. The color change is excellent, as is the clarity. The average weight is 1.14 ct. Priced at $85/ct, and the price shown is per gem.

 new 

$96.90

21407 7 mm square cut-corner
radiant cut 
 
We have four three lab alexandrites faceted in a 7mm square cut-corner radiant pattern. The hardness of this stone gives it durability, making it ideal for use as jewelry. The average weight at this size is 1.95 ct., and the color change and clarity are excellent. Priced at $85/ct. The price shown at the right is per stone.  new 

$165.75

21408a 8 mm square Asscher cut There is one 8mm square lab alexandrite faceted in an Asscher cut. This is like the emerald step cut except the outline is a square with octagonal corners. Excellent color change and clarity. The average weight is 2.81 ct. Priced at $85/ct.

 

$238.85

21408p 8 mm square princess cut 
 
We have three 8mm square lab alexandrites faceted in a princess cut. Excellent color change and clarity.  Great for earrings, pendants, or rings.  The average weight is 3.06 ct. Priced at $85/ct, and the price shown is per gem.

  

$260.10

21408 8 mm square cut-corner
radiant cut
Also in the 8mm square size, we have 6 lab alexandrites faceted in a cut-corner radiant pattern. These are really nice gems! The color change is absolutely excellent, and the clarity is eye perfect. The average weight is 2.68 ct. Priced at $85/ct, and the price shown is per gem.

 new  

$227.80

21409

9 mm square cut-corner
radiant cut
This is a nice, versatile size for a variety of types of jewelry.  We have four 9mm square lab grown alexandrites, again with excellent color change and clarity. They're faceted in a cut-corner radiant cut.  The triangular facets on crown and pavilion give a lot of life to these stones. The average weight is 3.82 ct., priced at $85/ct. The price shown is per gem. new

$324.70

21410p 10 mm square princess cut 
 
This is a very nice gem, and only one is available. This 10mm square princess-cut lab-grown alexandrite would be nice as a man's or a ladies ring, or as a pendant. It has excellent color change and perfect clarity in a darker color-tone gem. The weight is 6.0 ct. Priced at $85/ct.

 new

$510.00

21410 10 mm square cut-corner
radiant cut 
 
We have 4 lab grown alexandrites in the 10mm size, faceted in a square cut-corner radiant pattern. These are gorgeous gems! Their color change and clarity are rated excellent. On average they weigh 5.29ct. Priced at $85/ct. The price shown is per gem.

 new

$449.65

21412 12 mm square cut-corner
radiant cut 
 
These three large lab-grown alexandrites are very impressive! 12mm square (octagon), faceted in a cut-corner radiant pattern, with an average weight of 9.15 ct. The color change and clarity are both excellent. Priced at $85/ct. and the price shown is per gem.

 new

$777.75

21500

Rectangular octagon cut Laboratory-grown color-change Alexandrite

21564c

6x4 mm rectangle We have 5 3 matched gemstones in a 6x4 mm rectangular brilliant cut size of light color toned, lab-grown alexandrite with excellent color change. The average weight is 0.63 ct. Priced at $85/ct. The price shown at the right is per stone.

  

$53.55

21564xb

6x4 mm rectangle These two matched 6x4mm rectangular scissors cut lab alexandrites have impressive color change for small size stones. Clean under a 10x loupe, with high durability (8.5 on the Mohs hardness scale). This makes them excellent for use as jewelry. The average weight is 0.61 ct. Priced at $85/ct. The price shown is per stone.

 

$51.85

21564

6x4 mm rectangle We have four more 6x4mm rectangular lab alexandrites. These are similar to 21564xb but the colors are darker and more intense. They're faceted in a cut-corner radiant pattern, and have excellent color change and clarity. The average weight is 0.66 ct. Priced at $85/ct. The price shown is per gemstone.

 new

$56.10

21575

7x5 mm rectangle There are seven gemstones in this size of lab-grown alexandrite. The average weight is 1.09 ct. Two are cut in a 7x5mm rectangular octagon step cut, while five are faceted in a cut-corner radiant pattern. Excellent color change and clarity. Priced at $85/ct. The price shown at the right is per stone.

new

$92.65

21586

8x6 mm rectangle Faceted in an 8x6mm rectangular cut-corner radiant.  We have 6 in this size and style of lab-grown alexandrite. The average weight is 1.77 ct. Excellent color change.  Priced at $85/ct. The price shown at the right is per stone.     new

$150.45

21597 9x7 mm rectangle Excellent color change and clarity in these 9x7-mm rectangular synthetic alexandrite gemstones.  Six Five Four are available, faceted in a cut-corner radiant pattern.  Priced at $85/ct.  The average weight is 2.60 ct., and the price shown is per stone.  new
 
$221.00
21508 10x8 mm rectangle There are six five four of these beautiful lab alexandrites in the 10x8mm size, faceted in a cut-corner radiant pattern. They exhibit excellent color change and clarity, and weigh an average of 3.68 ct. Priced at $85/ct., and the price shown is per gem.  new
 
$312.80

21519

11x9 mm rectangle We have six five 11x9mm rectangular octagon lab grown alexandrites faceted in a cut-corner radiant pattern. This size is very versatile  for any kind of jewelry, particularly pendants or rings.  The hardness of alexandrites makes them durable for daily wear. The color change and clarity of these gems is excellent. The average weight is 4.90 ct. Priced at $85/ct. The price shown at right is per gemstone. new

$416.50

21520

12x10 mm rectangle These large 12x10mm synthetic alexandrites would make stunning pendants! They're faceted in the cut-corner radiant pattern. Their color change and clarity are excellent. The average weight is 6.62 ct., and three of these gems are available. Priced at $85/ct. The price shown at right is per gemstone. new

$562.70

21700

Trillion cut Laboratory-grown color-change Alexandrite

 

21706

6 mm trillion We have three lab-grown alexandrites in the 6mm size, faceted in a trillion Portuguese brilliant flower cut. The color change and clarity are both excellent. The average weight is 0.78 ct. The price is $85/ct., and the price shown is per gemstone. new

$66.30

21707

7 mm trillion There are three of these versatile 7mm lab-grown alexandrites, faceted in a trillion Portuguese brilliant flower cut. They have a nice rich color tone and great brilliance. Their color change is excellent. The gems are clear at 10 power magnification. The average weight is 1.25 ct. The price is $85/ct., and the price shown is per gem. new

$106.25

21708

8 mm trillion These three one 8mm lab alexandrites, faceted in a trillion Portuguese brilliant flower cut, are a nice size for either men's or ladies jewelry. Consider one for a ring or two for earrings. Their clarity and color change are excellent. The average weight is 1.91 ct., priced at $85/ct. As always, the price shown is per gem.  new

$162.35

21709

9 mm trillion We also have two 9mm trillion lab grown alexandrites, again with excellent color change and clarity. They're faceted in a Portuguese brilliant flower cut. This is a nice, versatile size for a variety of types of jewelry. The average weight is 2.73 ct., priced at $85/ct. The price shown is per gem.  new

$232.05

21710

10 mm trillion These two 10mm trillion lab grown alexandrites, faceted in a trillion Portuguese brilliant flower cut, are a nice size for either men's or ladies jewelry. Consider one for a pendant. Their clarity and color change are excellent. The average weight is 3.81 ct., priced at $85/ct. As always, the price shown is per gem.  new

 

$323.85

21712

12 mm trillion There is just one large, 12mm trillion lab-grown alexandrite available. This gem is faceted in a Portuguese brilliant flower cut. Its degree of color change and its clarity are both excellent. The weight is 6.31 ct., priced at $85/ct.  new

$536.35

21800

Heart-shape cut Laboratory-grown color-change Alexandrite

21807

7 mm heart These two 7mm heart shaped lab alexandrites are very sweet looking. They're faceted in a Portuguese brilliant flower cut, and their clarity and color change are excellent. The average weight is 1.45 ct. Priced at $85/ct.  new

$123.25

21808

8 mm heart We have two very nice 8mm heart shaped lab-created alexandrites, faceted in the Portuguese brilliant flower style. Clarity and color change are both excellent. The gems weigh 2.06 ct. on average, and are priced at $85/ct. The price shown is per gem.  new

$175.10

21809

9 mm heart These two one 9mm hearts are very nice, with rich color and excellent color change and clarity. The heart shape is faceted in a Portuguese brilliant flower cut. Priced at $85/ct. The average weight of these lab grown alexandrites is 3.06 ct. The price shown is per stone.  new

$260.10

21810

10 mm heart These two large heart shaped 10mm lab alexandrites are really lovely.  They're faceted in a Portuguese brilliant flower heart-shape cut, and have excellent color change and clarity. The average weight is 4.23 ct. and the price is $85/ct, priced per stone. new

$359.55

21812

12 mm heart We have one 12mm heart shaped lab-created alexandrite, faceted in the Portuguese brilliant flower style. Clarity and color change are both excellent. The gem weighs 7.07 ct. and is priced at $85/ct.  new

$600.95

21900

Pear-shape cut Laboratory-grown color-change Alexandrite

21996

9x6 mm pear Four Three of these 9x6 mm pear shaped lab grown alexandrite available. They are faceted in the Portuguese brilliant flower style, and the color change and clarity are excellent. The typical weight is 1.52 ct. The price is $85/ct, priced per gem. new

$129.20

21907

10x7 mm pear There are 5 of these nicely-sized, matched, 10x7mm lab grown pear alexandrites available. They're faceted in the Portuguese brilliant flower style, and their color change and clarity are excellent. The average weight is 2.24 ct. The price is $85/ct, priced per gem.  Great for a lady's ring or pendant. new

$190.40

21939

13x9 mm pear We have 2 of these 13x9mm pear shaped, deep-color-toned lab-grown alexandrites available. They are faceted in a Portuguese brilliant flower cut, with excellent color change and clarity. One of these would make a gorgeous pendant. The average weight is 4.63 ct. The price is $85/ct, priced per gem. new

$393.55

21950

15x10 mm pear These two large pear shaped 15x10mm lab alexandrites are really lovely. Two are available. They're faceted in a Portuguese brilliant flower cut, and have excellent color change and clarity. The average weight is 6.62 ct. and the price is $85/ct, priced per stone. new

$562.70

Remember, we can set these gemstones in a variety of jewelry mountings.  Ask for details.

 
 
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Last modified:  April 08, 2014

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