Carat weights exceeding thirty carats represent the absolute zenith of cuprian tourmaline discovery. This monumental 40-carat crystal survived centuries of tectonic shifts to emerge intact, retaining an intensely saturated neon core. Its existence challenges geological probabilities, bridging the gap between raw natural wonder and the pinnacle of historic royal-grade jewelry collecting assets.

A 40-carat natural oval-cut Paraiba Tourmaline, graded Greenish Blue, unheated, with GIA, GÜBELIN, and AIGS reports. The Greenish Blue designation represents the elite tier of neon saturation, balanced perfectly between electric cyan and mint tones. At 40 carats, this unheated specimen occupies a near-mythical status, as cuprian tourmalines of this scale without thermal treatment are mathematically scarce on the global market. Triple certification from GIA, GÜBELIN, and AIGS guarantees undisputed provenance, copper permanence, and absolute premium grading confirmation. JUSTLEE guarantees museum-level crystal purity and flawless master-cut proportions.
Available for private viewing by appointment.

Product Type	Paraiba Tourmaline
Color	Greenish Blue
Certificate	GIA/GUBELIN/AIGS
Processed (Yes/No)	No indication of thermal treatment
Cut	Oval
Carat Weight	40ct