Color Change
- Value: The most valuable alexandrites exhibit a dramatic color change from green in daylight to red or purplish-red under incandescent light. The more vivid and noticeable the transition, the higher the gemstone’s value.
Color Quality
- Green Color: Should be a deep, rich green. Avoid stones with light or dull greens.
- Red or Purplish-Red Color: Should be vibrant and intense. Stones that appear brownish or overly dark are less desirable. Even color distribution across the gemstone enhances its value.
Clarity
- Inclusions: Alexandrites can have natural inclusions, but they should be minimal and not easily visible to the naked eye. Significant inclusions can affect the gem’s value and overall appearance.
Cut
- Shapes: Alexandrites can be cut into various shapes, including round, cushion, and emerald. A well-executed cut maximizes the gemstone's color change and brilliance, affecting both its visual appeal and perceived size.
Carat Weight
- Consideration: While carat weight contributes to value, the rarity of alexandrite makes color and clarity more important. Larger stones are rare and desirable, but the overall quality of the gem is crucial.
Care
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Maintenance: To keep your alexandrite jewelry looking its best:
- Clean: Use warm soapy water and a soft cloth.
- Avoid: Ultrasonic and steam cleaners.
- Store: Keep alexandrite jewelry separately to prevent scratches and damage.