JDBG GEMS

Color-Change Fluorite

Nova

Colour-change fluorite is one of the quietest optical rarities in the mineral world: the same stone reads blue-green in daylight and violet under tungsten light, a shift driven by trace chemistry and lattice defects rather than by any treatment.

Nova is a 581.93 ct transparent cushion, documented as natural fluorite with a genuine daylight-to-incandescent colour change and no detected treatments.

Rarity Score: 9.3 / 10

Reference stones

  • The Black Hole · JDBG Collection · 1391.46 ct
  • Color-change fluorite · Ex. Ed Swoboda Collection · 306 ct
  • Color-change fluorite · Fallbrook Gem & Mineral Society Gem Collection · 74.96 ct

Location: Stockholm · Private collection · JDBG GEMS

Species
Natural Fluorite
Weight
581.93 ct
Cut
Brilliant / step
Colour
Blue-green (daylight) · Violet (tungsten)
Transparency
Transparent
Treatments
None
Analysis
Microscope · Raman
Variety
Colour-change Fluorite
Dimensions
49.63 × 46.54 × 34.13 mm
Shape
Cushion
Phenomena
Colour change
Hardness
Mohs 4
Certificate
Verification in progress