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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 flower cut Laboratory grown color change Alexandrite

21040xb

 4 mm round The color change is excellent in these four three one none 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 stone.  sold 

$26.35

21050c

 5 mm round For those of you who like a lighter-tone lab alexandrite, this 5-mm round brilliant-cut fills the bill. The  weight is 0.60 ct. Very good color change, but subtle due to the lighter color tone.  Eye-clean.  Hardness is 8.5 on the Mohs scale (next to Ruby at 9).  Priced at $75/ct.  One available.      

$45

21070m

 7 mm round These alexandrites exhibit excellent color change.  They are 7mm round Portuguese brilliant flower cut, lab grown gems.  Eye clean.  There are 7 6 5 4 3 2 1 0 available, with an average weight of 1.45ct. Priced at $85/ct.  Price shown is per stone.    sold

$123.25

21080e

 8 mm round Lab grown alexandrite gems with a fair color change.  Eye-clean.  Hardness is 8.5 on the Mohs' scale (next to Ruby at 9).  The dominant color is a wine red. Faceted in an 8-mm round Portuguese brilliant flower cut. The average weight is 2.23 ct. Priced at $45/ct.  Two One available.  The price shown at right is per stone.

$100.35

21080xb

 8 mm round There is only one of these 8mm round, Lab grown alexandrite Portuguese brilliant flower cut gems with excellent color change and clarity. The weight is 2.49 ct. Priced at $85/ct. A very nice gem, in a versatile size.  sold

$211.65

21090xb

 9 mm round Another 9mm round lab-grown Alexandrite has become available. Excellent color change and clarity, and faceted in a Portuguese brilliant flower cut. Hardness is 8.5 on the Mohs' scale (next to Ruby at 9). The weight is 2.90 ct. Priced at $85/ct.  sold

$246.50

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 available.  Price shown is per gem.

$111.50

21100

 Oval brilliant cut Lab grown color-change Alexandrite

21164xb

 6x4 mm oval There are 5 3 1 0 of these 6x4mm oval Portuguese brilliant flower faceted, created alexandrites available. Excellent color change and very clean. Average weight is  0.54 ct., priced at $85/ct. The smaller size makes them affordable even with the very nice color change.     sold

$45.90

21175

 7x5 mm oval One available, cut in a 7x5-mm oval brilliant. Synthetic alexandrite with good color change. Weight is approximately 0.88 ct. Priced at $65/ct. 

sold

$57.20

21175m

 7x5 mm oval The average weight of these 7x5-mm oval synthetic alexandrites is approximately 0.91 ct.  There are 6 4 2 1 available.  Faceted in a  Portuguese brilliant flower cut with excellent color change.   Priced at $85/ct. 

sold

$77.35

21175s

 7x5 mm oval Excellent color change in a 7x5-mm oval created alexandrite gemstone. The average weight is 0.81 ct.  There are 4 2 0 available.  Faceted in a  7x5mm oval cut. Priced at $85/ct. The price shown is per gemstone.

 sold 

$68.85
21186s 8x6 mm oval 
 		 There are 5 4 3 of these created alexandrite gemstones available, with excellent color change faceted in an 8x6mm oval cut with 1.26ct average weight.  An additional two are available, more deeply cut and in a Portuguese brilliant flower style.  They average 1.60 ct in weight and are priced at $136 each. All are priced at $85/ct.

   

$107.10
21186xb 8x6 mm oval 
 		 We have 3 one none 8x6mm oval lab alexandrites faceted in a Portuguese brilliant flower cut. Nice for earrings or a small ring, and with robust hardness on the Mohs scale. Excellent color change and clarity. The average weight is 1.46 ct., priced at $85/ct. The price shown is per gem.

  sold     

$124.10
21197m 9x7 mm oval There are 11 10 9 8 7 6 5 of these 9x7-mm oval Portuguese brilliant flower cut synthetic alexandrite gemstones available. Priced at $85/ct.  Excellent color change.  The average weight is 1.96 ct.  The price shown is per stone.    $166.60
21197s 9x7 mm oval Excellent color change in a 9x7-mm oval Portuguese brilliant flower cut synthetic alexandrite gemstone. Two One available.  Priced at $85/ct.  The average weight is 2.29 ct, cut slightly deeper than 21197m.  The price shown is per stone.     $194.65
21108a 10x8 mm oval The weight of this 10x8-mm oval Portuguese brilliant flower cut synthetic alexandrite gemstone is 3.93 ct.  There is one available. Priced at $65/ct.  Good color change.  The price shown is per stone. $255.45
21108m 10x8 mm oval There are 8 7 6 5 4 3 2 1 of these 10x8-mm oval Portuguese brilliant flower cut synthetic alexandrite gemstones available. Priced at $85/ct.  Excellent color change.  The average weight is 2.92 ct.  The price shown is per stone.   $248.20
21108xb 10x8 mm oval These six five four three two none 10x8mm oval lab alexandrites are particularly nice, with excellent color change, perfect clarity and a durable hardness rating (all the lab alexandrites have a high hardness on the Mohs scale). The plum color shade is very rich. They are faceted in a  Portuguese brilliant flower cut style.  Priced at $85/ct.  The average weight is 2.83 ct.  The price shown is per stone.  sold $240.55
21119cl 11x9 mm oval The light color tone of these four 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
21119m 11x9 mm oval 11x9-mm lab alexandrites with excellent color change, faceted in an oval Portuguese brilliant flower cut.  There are two one 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 3.77 ct. Priced at $85/ct.    

$320.45

21119s 11x9 mm oval We have two one oval 11x9-mm Portuguese brilliant flower cut lab alexandrites with excellent color change.  The average weight is 4.22 ct. Priced at $85/ct.  

$358.70
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 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
21120xb 12x10 mm oval These four three two 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 5.09 ct. Priced at $85/ct. The price shown is per gemstone.  

$432.65
21140c 14x10 mm oval We have four matched gemstones in this size of lab-grown alexandrite. The average weight is 6.47 ct. The cut is a 14x10-mm oval Portuguese brilliant flower cut. Minimal color change, but the color is a nice wine red.  Priced at only $25/ct. The price shown at the right is per stone.

$161.75

21140d 14x10 mm oval The average weight of these two gems is 7.01 ct. They are faceted in a 14x10-mm oval Portuguese brilliant flower cut.  Very good color change.  Priced at $75/ct. The price shown at the right is per stone.  Only one left.   

$525.75

21140e 14x10 mm oval This alexandrite lab-grown gem has only minimal color change and is priced accordingly at $25/ct.   None-the-less, it is a very attractive gem with a deep ruby red wine color and a harness next to ruby at 8.5 on the Mohs scale, making it a very durable choice for jewelry wear.  The weight is 6.30 ct. Eye-clean and faceted in a 14x10-mm oval Portuguese brilliant flower cut.  Only one available.

$157.50

21105e 20x15 mm oval We have two huge, ruby-red colored laboratory grown alexandrites gemstones faceted in a 20x15-mm oval Portuguese brilliant flower cut. There is only minimal color change so the price is a low $25/ct.  However, the nice wine-red color and excellent hardness (8.5 on the Mohs scale) are ideal for jewelry use.  These gems average 21.4 ct.   Price shown is per gemstone. 
$535.00

21300

 Antique cushion cut Laboratory-grown color-change Alexandrite

21386s

 8x6 mm cushion We have two matched one gemstones faceted in an 8x6mm antique cushion shape.  The average weight is 1.79 ct. Excellent color change.  Priced at $85/ct. The price shown at the right is per stone.

 sold

$152.15

21400

 Square Princess cut Laboratory-grown color-change Alexandrite
21404c 4 mm square princess cut 
 		 There are four three two one matched gemstones in this size of lab-grown alexandrite. The average weight is 0.40 ct. They are faceted in a 4mm square princess cut. Excellent color change in a lighter-toned gem.  Priced at $85/ct. The price shown at the right is per stone.

  

$34.00
21406c 6 mm square princess cut 
 		 Faceted in a 6-mm square princess cut.  A lighter-tone lab alexandrite with excellent color change.  There are 2 1 of these created  gemstones available, priced per stone.  The average weight is 1.02 ct. Priced at $85/ct.

    

$86.70
21406xb 6 mm square princess cut 
 		 We have three two one none of these 6mm square lab alexandrites faceted in a princess cut. Excellent color change and clarity.  The average weight is 1.24 ct. Priced at $85/ct, and the price shown is per gem.

   sold 

$105.40
21407xb 7 mm square princess cut 
 		 We have three two of these 7mm square lab alexandrites faceted in a princess cut, with excellent color change and clarity. They are just slightly darker in color than the similar 6mm gems, due to their slightly larger size. The average weight is 1.92 ct. Priced at $85/ct, and the price shown is per gem.

 

$163.20
21410xb 10 mm square princess cut 
 		 This is a very impressive 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. The weight is 5.61 ct. Priced at $85/ct.

 sold   

$476.85

21500

 Rectangular octagon cut Laboratory-grown color-change Alexandrite

21564c

 6x4 mm rectangle We have 5 matched gemstones in a 6x4 mm rectangular brilliant cut size of light color toned, lab-grown alexandrite. 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

21575

 7x5 mm rectangle There are four three two matched gemstones in this size of lab-grown alexandrite. The average weight is 1.10 ct. The cut is a 7x5mm rectangular octagon. Very good color change.  Priced at $75/ct. The price shown at the right is per stone.

 

$82.50

21575xb

 7x5 mm rectangle We have four two 7x5mm scissors cut rectangular lab alexandrites with excellent color change. The clarity is also excellent, and all four gems are well matched. The average weight is 1.10 ct., priced at $85/ct. The price shown at the right is per stone.

 

$93.50

21586s

 8x6 mm rectangle Faceted in an 8x6mm rectangular octagon.  We have two one matched gemstones in this size of lab-grown alexandrite. The average weight is 1.78 ct. Excellent color change.  Priced at $85/ct. The price shown at the right is per stone.  One more shallowly cut stone is also available at 1.50 ct and $127.50 price.

 

$151.30

21586xb

 8x6 mm rectangle There are now five four two one lab grown alexandrites faceted in an 8x6mm rectangular octagon scissors cut available.  Their color change and clarity are excellent. The average weight is 1.92 ct. Priced at $85/ct. The price shown at the right is per gem.

 

$163.20

21597xb

 9x7 mm rectangle These three two none 9x7mm rectangular scissors cut lab alexandrites are nicely sized for men's or ladies rings. Their high durability (8.5 on the Mohs hardness scale) makes them well suited for this purpose. Color change and clarity are excellent. The average weight is 2.80 ct. Priced at $85/ct. The price shown at right is per gemstone.  sold

$238.00

21508xb

 10x8 mm rectangle We have four three one none 10x8mm rectangular octagon scissors cut lab grown alexandrites. This size is very versatile  for any kind of jewelry, and the hardness of alexandrites makes them durable for daily wear. The color change and clarity of these 4 gems is excellent. The average weight is 3.78 ct. Priced at $85/ct. The price shown at right is per gemstone. sold

$321.30

21600

 Marquise cut Laboratory-grown color-change Alexandrite  

21605xb

 10x5 mm marquise We have a matched pair of one none 10x5mm marquise lab-grown alexandrites faceted in a Portuguese brilliant flower cut. With excellent color change and clarity, they're perfect for earrings, or a ladies ring. The average weight is 1.24 ct. The price is $85/ct, priced per gem.  sold

$105.40

21647xb

 14x7 mm marquise There are 3 of these impressively-sized 14x7mm lab grown marquise alexandrites available. They're faceted in the Portuguese brilliant flower style, and their color change and clarity are excellent. The average weight is 2.99 ct. The price is $85/ct, priced per gem.  

$254.15

21700

 Trillion cut Laboratory-grown color-change Alexandrite

 

21706xb

 6 mm trillion There are six four three one of these 6mm lab-grown alexandrites, faceted in a trillion Portuguese brilliant flower cut, available. Their color is a bit lighter than larger gems due to their smaller size, but their color change is still excellent. The gems are clear at 10 power magnification. The average weight is 0.81 ct. The price is $85/ct., and the price shown is per gem.  

$68.85

21708xb

 8 mm trillion We have three one none of these 8mm trillion lab grown alexandrites. The color change and clarity are excellent, and they are faceted in a Portuguese brilliant flower cut. The average weight is 1.70 ct., priced at $85/ct., and the price shown is per gem. sold 

$144.50

21709xb

 9 mm trillion We also have three 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 2.28 ct., priced at $85/ct. The price shown is per gem.  

$193.80

21710xb

 10 mm trillion These three two 10mm 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 pendant. Their clarity and color change are excellent. The average weight is 3.39 ct., priced at $85/ct. As always, the price shown is per gem.  

$288.15

21800

 Heart-shape cut Laboratory-grown color-change Alexandrite

21809xb

 9 mm heart These three 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 2.74 ct. The price shown is per stone.  

$232.90

21810xb

 10 mm heart We have one 10mm heart shaped lab-created alexandrite, faceted in the Portuguese brilliant flower style. Clarity and color change are both excellent. The gem weighs 3.40 ct. and is priced at $85/ct.  sold

$289.00

21900

 Pear-shape cut Laboratory-grown color-change Alexandrite

21928xb

 12 x 8 mm pear There are 3 1 of these 12x8mm pear shaped lab grown alexandrites available. They're faceted in the Portuguese brilliant flower style, and their color change and clarity are excellent. The average weight is 3.05 ct. The price is $85/ct, priced per gem.  

$259.25

21950xb

 15 x 10 mm pear We have 2 1 0 of these large pear shaped lab-grown alexandrites available. They are faceted in a Portuguese brilliant flower cut, with excellent color change and clarity. One of these would make an absolutely gorgeous pendant. The average weight is 6.43 ct. The price is $85/ct, priced per gem. sold 

$546.55

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

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Last modified:  March 07, 2010

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