One of the most expensive gemstones, Alexandrite has a wide range of colors (emerald green, orange-yellow, and red) and has a tendency to change colors in different forms of light. Emerald green in daylight will change to red when exposed to incandescent light.
 

Alexandrite is the birthstone of Modern: June and Traditional: June
 
Properties of Alexandrite:
Hardness:  8.5
Specific Gravity:  3.71-3.74
Refractive Index:  1.745-1.757
Chemical Composition:  BeAl2O4
Crystal Structure:  Orthorhombic
Treatment: Generally is not enhanced
Care: Normal care should be fine
11.30ct Czochralski Lab Russia ColourChange Alexandrite
11.30ct Czochralski Lab Russia ColourChange Alexandrite
$9.99
Time Left: 33m
1.48-Carat Round 5.50mm Alexandrite Cat's Eye from India
1.48-Carat Round 5.50mm Alexandrite Cat's Eye from India
$370.00
Time Left: 56m
28.45CTS BEAUTIFUL AMAZING ALEXANDRITE COLOR CHANGE OVAL GEM
28.45CTS BEAUTIFUL AMAZING ALEXANDRITE COLOR CHANGE OVAL GEM
$9.99 (1 Bids)
Time Left: 1h 17m
ViPSCOLLECTION 0.25ct RARE 100% NATURAL ALEXANDRITE BRZ
ViPSCOLLECTION 0.25ct RARE 100% NATURAL ALEXANDRITE BRZ
$38.00
Time Left: 2h 30m
2.27ct Ceylon Alexandrite Cushion Rare Color Change
2.27ct Ceylon Alexandrite Cushion Rare Color Change
$235.00
Time Left: 2h 35m
2.52ct Huge Ceylon Alexandrite Oval Rare Color Change
2.52ct Huge Ceylon Alexandrite Oval Rare Color Change
$250.00
Time Left: 2h 35m
0.74-Carat Rare Deep Green Alexandrite Cat's Eye with 85% Change (Super Sharp)
0.74-Carat Rare Deep Green Alexandrite Cat's Eye with 85% Change (Super Sharp)
$475.00
Time Left: 3h
IDI CERTIFD~1.24Ct VVS NATURAL COLOR CHANGE ALEXANDRITE
IDI CERTIFD~1.24Ct VVS NATURAL COLOR CHANGE ALEXANDRITE
$378.01
Time Left: 3h 1m
IDI CERTIFIED~1.14Ct NATURAL COLOR CHANGE ALEXANDRITE
IDI CERTIFIED~1.14Ct NATURAL COLOR CHANGE ALEXANDRITE
$345.47
Time Left: 3h 1m
Rare1.30Ct.Superb Natural Color Change Oval Alexandrite
Rare1.30Ct.Superb Natural Color Change Oval Alexandrite
$149.99
Time Left: 4h 11m
0.60 Ct  NICE NATURAL ALEXANDRITE CAT'S EYE GEM OVAL CAB 2 Pcs
0.60 Ct NICE NATURAL ALEXANDRITE CAT'S EYE GEM OVAL CAB 2 Pcs
$0.01 (1 Bids)
Time Left: 4h 31m
0.35 CTS NATURAL ALEXANDRITE GEMSTONE (BG160 63)
0.35 CTS NATURAL ALEXANDRITE GEMSTONE (BG160 63)
$3.99
Time Left: 4h 42m
13.70cts.AMAZING CROWN RUSSIAN CZOCHRALSKI ALEXANDRITE OVAL GEM
13.70cts.AMAZING CROWN RUSSIAN CZOCHRALSKI ALEXANDRITE OVAL GEM
$7.99 (0 Bids)
Time Left: 4h 44m
0.25 CTS NATURAL ALEXANDRITE GEMSTONE (BG214 97)
0.25 CTS NATURAL ALEXANDRITE GEMSTONE (BG214 97)
$3.99
Time Left: 5h 7m
3.40 ct. Stunning Emerald Cut  Alexandrite Color Change Russia
3.40 ct. Stunning Emerald Cut Alexandrite Color Change Russia
$5.99 (0 Bids)
Time Left: 5h 32m


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