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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

21040

 4 mm round The color change is excellent in these five four two one none 4mm round lab alexandrites faceted in a Portuguese brilliant flower cut. Perfect clarity.  Great for stud earrings.  Average weight is 0.30 ct. Priced at $85/ct.  Price shown is per stone.  
sold  

$25.50

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

21060

 6 mm round These alexandrites exhibit excellent color change.  They are 6mm round Portuguese brilliant flower cut, lab grown gems.  Eye clean.  There are 2 1 0 available, with an average weight of 1.04 ct. Priced at $85/ct.  Price shown is per stone.  
sold

$88.40
21070 7 mm round We have one none of these 7mm round lab alexandrites faceted in a Portuguese brilliant flower cut, with excellent color change and clarity.  The weight is 1.64 ct. Priced at $85/ct.

   sold

$139.40

21080

 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 2.48 ct. Priced at $85/ct. A very nice gem, in a versatile size.  
sold

$210.80

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. sold

$100.35

21000 10 mm round These are very impressive gems, and 4 3 2 1 0 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 perfect clarity. The average weight is 4.18 ct. Priced at $85/ct.

sold

$355.30

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 is one 6x4mm oval Portuguese brilliant flower faceted, created alexandrites available. Excellent color change and very clean. Weight is  0.51 ct., priced at $85/ct. The smaller size makes it affordable even with the very nice color change.

 sold  

$43.35

21175

 7x5 mm oval The average weight of these 7x5-mm oval synthetic alexandrites is 0.94 ct.  There are 5 2 1 none available.  Faceted in a  Portuguese brilliant flower cut with excellent color change.   Priced at $85/ct. 

sold  

$79.90
21186s 8x6 mm oval 
 		 There are 4 1 0 of these created alexandrite gemstones available, with excellent color change faceted in an 8x6mm oval cut with 1.26ct average weight.  They are priced at $85/ct. sold

$107.10
21186 8x6 mm oval 
 		 We have one none 8x6mm oval lab alexandrites faceted in a Portuguese brilliant flower cut. Nice for a small ring, and with robust hardness of 8.5 on the Mohs scale. Excellent color change and clarity. The weight is 1.34 ct., priced at $85/ct.

   sold   

$113.90
21197s 9x7 mm oval Excellent color change in a 9x7-mm oval Portuguese brilliant flower cut synthetic alexandrite gemstone. Two none available.  Priced at $85/ct.  The average weight is 2.29 ct, cut slightly deeper than 21197m.  The price shown is per stone.   sold  $194.65
21108m 10x8 mm oval There are 8 7 6 5 4 3 2 1 0 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. sold  $248.20
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 none  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.   sold 

$320.45

21119s 11x9 mm oval We have two one no oval 11x9-mm Portuguese brilliant flower cut lab alexandrites with excellent color change.  The average weight is 4.22 ct. Priced at $85/ct.  sold

$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 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
21120xb 12x10 mm oval These four three two one sold 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. sold  

$432.65
21140c 14x10 mm oval We have four sold 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. sold  

$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.  None left.  sold 

$525.75

21300

 Antique cushion cut Laboratory-grown color-change Alexandrite
   

None available currently

      

21400

 Square cut Laboratory-grown color-change Alexandrite
21407xb 7 mm square princess cut 
 		 We have three two one of these 7mm square lab alexandrites faceted in a princess cut, with excellent color change and clarity. The average weight is 1.92 ct. Priced at $85/ct, and the price shown is per gem.

sold 

$163.20
21408a 8 mm square Asscher cut 
 		 There are is three two one gemstone in this size of lab-grown alexandrite. The average weight is 2.81 ct. They are faceted in a 8 mm square Asscher cut. This is like the emerald step cut except the outline is a square with octagonal corners.  Excellent color change. Priced at $85/ct. The price shown at the right is per stone.  

$238.85
21408c 8 mm square cut-corner
radiant cut		 Faceted in a 8-mm square cut-corner radiant cut.  This cut has triangular facets on both the pavilion and the crown.  Matched lab alexandrites with excellent color change.  There are 3 2 1 0 of these eye-clean, created  gemstones available, priced per stone.  The average weight is 2.69 ct. Priced at $85/ct.

 sold

$228.65
21408p 8 mm square princess cut 
 		 We have two matched one 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

21409c

 9 mm square cut-corner
radiant cut 		This is a nice, versatile size for a variety of types of jewelry.  We have two one none 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 3.63 ct., priced at $85/ct. The price shown is per gem. sold 

$308.55
21410a 10 mm square Asscher cut 
 		 This is a very nice gem, and only one is available. This 10mm square Asscher-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 5.52 ct. Priced at $85/ct.

 sold

$469.20

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

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 step cut. Very good color change.  Priced at $75/ct. The price shown at the right is per stone.

 

$82.50
21575m 7x5 mm rectangle 
 		 This is a very nice gem, and only one none is available. This 7x5 mm mixed-cut lab-grown alexandrite has excellent color change and perfect clarity. The pavilion is faceted in a cut-corner radiant style and the crown is step or emerald-cut.  The weight is 0.94 ct. Priced at $85/ct.

 sold   

$79.90

21575xb

 7x5 mm rectangle We have four two none 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.

sold 

$93.50

21586m

 8x6 mm rectangle Faceted in an 8x6mm rectangular mixed cut like 21575m above.  We have three two one in this size and style of lab-grown alexandrite. The average weight is 1.72 ct. Excellent color change.  Priced at $85/ct. The price shown at the right is per stone.     

$146.20

21586xb

 8x6 mm rectangle One gem faceted in an 8x6mm rectangular octagon scissors cut available. The color change and clarity are excellent. The weight is 1.92 ct. Priced at $85/ct. The price shown at the right is per gem.

sold

$163.20
21597m 9x7 mm rectangle Excellent color change in these matched, darker-color-toned 9x7-mm rectangular synthetic alexandrite gemstones.  Four are available, faceted in a mixed cut with step facets on the crown and a cut-corner radiant style on the pavilion.  Priced at $85/ct.  The average weight is 2.97 ct, cut slightly deeper than 21197m.  The price shown is per stone.  sold
 		 $252.45

21519m

 11x9 mm rectangle We have three none 11x9mm rectangular octagon mixed-cut lab grown alexandrites (see the other "m" rectangular stones above for a description of the cut). This size is very versatile  for any kind of jewelry, particularly pendants or rings.  And the hardness of alexandrites makes them durable for daily wear. The color change and clarity of these gems is excellent. The average weight is 5.01 ct. Priced at $85/ct. The price shown at right is per gemstone. sold

$425.85

21600

 Marquise cut Laboratory-grown color-change Alexandrite  

21647xb

 14x7 mm marquise There are 3 2 1 0 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.  Great for a ladies ring or pendant. sold

$254.15

21700

 Trillion cut Laboratory-grown color-change Alexandrite

 

21707

 7 mm trillion There are five three two none of these versatile 7mm lab-grown alexandrites, faceted in a trillion Portuguese brilliant flower cut. They have a nice medium color tone and great brilliance.  Their color change is excellent. The gems are clear at 10 power magnification. The average weight is 1.23 ct. The price is $85/ct., and the price shown is per gem. sold

$104.55

21709xb

 9 mm trillion We also have three two none 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.  sold

$193.80

21710

 10 mm trillion This is one of two 10mm trillion lab grown alexandrites that we have. This one has a slightly darker color tone than 21710xb.  The color change and clarity are excellent, and it is faceted in a Portuguese brilliant flower cut. The weight is 3.69 ct., priced at $85/ct.  sold

 

$313.65

21710xb

 10 mm trillion These three two one lighter-color-toned 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

21808

 8 mm heart We have one 8mm heart shaped lab-created alexandrite, faceted in the Portuguese brilliant flower style. Clarity and color change are both excellent. The gem weighs 2.08 ct. and is priced at $85/ct.  sold

$176.80

21809xb

 9 mm heart These three two none 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.  sold

$232.90

21900

 Pear-shape cut Laboratory-grown color-change Alexandrite

21996

 9x6 mm pear There is only one none (sold) 9x6 mm pear shaped lab grown alexandrite available. It is faceted in the Portuguese brilliant flower style, and the color change and clarity are excellent. The weight is 1.27 ct. The price is $85/ct, priced per gem. sold

$107.95

21907

 10x7 mm pear There are 6 4 2 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 2.11 ct. The price is $85/ct, priced per gem.  Great for a ladies ring or pendant.  

$179.35

21939

 13x9 mm pear We have 2 1 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 4.72 ct. The price is $85/ct, priced per gem. sold

$401.20

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

 
 
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Last modified:  May 05, 2013

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