J ade Leader Corp. reveal a new type of nephrite Jade to the gem and collector world markets. This Jade has a unique color change phenomenon whereby depending on the specimen, the color can shift from white to blues to dark green as the viewer's eye moves in relation to the stones.

Gemologists refer to gemstones showing unusual optical effects such as color change, chatoyancy or asterism as "phenomenon stones", which can be highly prized by collectors and specialty jewellers. Composite picture of cabochon cut stone (JLCC5), showing the color change as the stone is rotated relative to a fixed light source. Stone is 36.5 mm by 35 mm in diameter and weighs 17.6 grams/87.9 carats.

Composite picture of cut stone(JLCC4). Stone is 36.6 mm by 36.1 mm in diameter and weighs 33 grams/165 carats. Composite picture of cut ring stone (JLCC7).

Stone is 11.6 mm by 12.5 mm in diameter and weighs 0.94 grams/4.7 carats. While chatoyant or "cat's eye" Jades (both nephrite and jadeite) have been documented before from various locations, chatoyancy refers to a band of light caused by reflection along inclusions or parallel underlying fibers within the stone. It is not associated with an actual change of perceived color for the body of the stone itself.

Composite picture of cut ring stone(JLCC8). Stone is a round 8.8 mm and weighs 0.54 grams/2.7 carats with a high vitreous luster and sharp transition from white to green. Composite picture of cut stone (JLCC10).

Stone is a 17.1 mm by 7.4 mm marquise cut cabochon and weighs 0.7 grams/3.6 carats. High vitreous luster, high translucency in bands, and sharp color changes from dark to light greens and light blues. Composite picture of cut stone (JLCC9).

Stone is a 23.5 mm by 7.8 mm drop cut cabochon and weighs 2.13 grams/10.6 carats. Identification work conducted to date on this material from surface samples relied heavily on SEM/EDS (Scanning Electron Microscope/Energy Dispersive X-Ray Spectroscopy) as well as thin section and hand sample microscope work to understand the relationship to perceived color to the main mineralogical characteristics of the nephrite Jade itself.