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Tsarstone collectors guide

Certified Strong Color Change Alexandrite

A beautiful stone with a superb color change. Depending on the quality of the daylight, the color ranges from blueish green to greenish blue. Under incandescent light the color is clearly reddish purple. The cutting and proportions are excellent and the stone is clean except for a few patches of silk. There was know way I could pass on this stone … the best alex I’ve seen in years!

Certified Strong Color Change Alexandrite
Natural Alexandrite Oval 3.06 cts Natural Alexandrite Oval 3.06 cts

Grade Score 9 / 10

Exceptional (5/5)
Exceptional (5/5)
Large (4/5)
Very good (4/5)
Extremely rare (5/5)

Price information

Availability information

  • Offered through
  • Not available for sale
  • Source:
  • Multicolour Gems Co., Ltd
Detail identification and grading report
Type: Natural
Species: Chrysoberyl
Variety: Alexandrite
Origin: Andhra Pradesh, India, South-central Asia, Asia
Hardness: 8.5
Density: 3.75
RI-1: 1.741
RI-2: 1.76
Variety of work: Faceted
Designation: A (Not currently known to be enhanced)
Color light source: Cool daylight
Color description: GB/BG 7/2 (dark green-blue)
Phenomena: Pleochroism Change of color (Alexandrite effect) Strong
Color phenomena: rP 5/3 (medium reddish purple)
Clarity type: Slightly included (Type I)
Transparency: Transparent
Shape: Oval
Cut style: Step
Symmetry: Exceptional
Brilliance: Exceptional
Polish: Exceptional
Width: 7.10 mm
Length: 9.30 mm
Depth: 5.70 mm
Weight: 3.06 cts
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