Lab Alexandrite
Alexandrite is a rare, color-changing gemstone that typically shifts from a bluish-green in daylight (or fluorescent light) to a purplish-red in incandescent (warm) light. This phenomenon, caused by chromium impurities in its crystal structure and high-intensity light absorption.
Calibrated Faceted Loose Alexandrite Gemstones – Natural & Lab Grown Calibrated Stones
Select Size for Round:
Natural / Lab:
Alexandrite gemstones are prized for their rarity, brilliance, and versatility. At B.V. Gems in New York’s Diamond District, we offer Lab Grown Quality alexandrite gemstones in calibrated sizes for rings, necklaces, earrings, and custom jewelry. Each stone is ethically sourced and inspected for quality, ensuring brilliance and durability.
Additional Information
| Treatment | Lab Grown |
|---|---|
| Hardness | 8.5 |
| Chemical | Chrysoberyl |
Quality Grades
| B | Minimal to moderate color zoning, moderate inclusions, decent cutting, typically opaque; commercial quality |
|---|---|
| A | Good color, good cut, minimal zoning, good brilliance, minimal inclusion, more transparent |
| AA | Eye clean, open color, great cutting, zero to minimal zoning, good polish, transparent |
| Lab Grown | Zero inclusions, excellent color, excellent cutting, excellent polish, optically perfect. |
Shape
Size
Natural / Lab
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