Systems and methods for evaluating gemstones are disclosed. The system includes a gemstone holding case, an illumination pad and an image capturing and gemstone evaluation device. The case includes a transparent viewing window in a top wall, a translucent bottom wall and a compressible light-diffusing pad for receiving gemstones thereon. The case and pad are dimensioned such that, when closed, the viewing window presses the gemstones into the pad holding them in place and level and allowing for in situ gem imaging. The illumination pad includes embedded LEDs for selectively illuminating the portion of the pad on which the case is placed. The controllable lighting, translucent case and diffusive pad serves to evenly light the gems and reduce unwanted light thereby improving the images and analysis performed using the image capturing and gemstone evaluation device. Methods for analyzing gemstones under diffuse lighting using the system is also disclosed.

Systems and methods for evaluating gemstones are disclosed. The system includes a gemstone holding case, an illumination pad and an image capturing and gemstone evaluation device. The case includes a transparent viewing window in a top wall, a translucent bottom wall and a compressible light-diffusing pad for receiving gemstones thereon. The case and pad are dimensioned such that, when closed, the viewing window presses the gemstones into the pad holding them in place and level and allowing for in situ gem imaging. The illumination pad includes embedded LEDs for selectively illuminating the portion of the pad on which the case is placed. The controllable lighting, translucent case and diffusive pad serves to evenly light the gems and reduce unwanted light thereby improving the images and analysis performed using the image capturing and gemstone evaluation device. Methods for analyzing gemstones under diffuse lighting using the system is also disclosed.

Provided herein is an apparatus for assessing a fluorescence characteristic of a gemstone. The apparatus comprises an optically opaque platform for supporting a gemstone to be assessed, one or more light source to provide uniform UV and non-UV illumination, an image capturing component, and a telecentric lens positioned to provide fluorescent images of the illuminated gemstone to the image capturing component. Also provided are methods of fluorescence analysis based on images collected using such an apparatus.

Provided herein is an apparatus for assessing a fluorescence characteristic of a gemstone. The apparatus comprises an optically opaque platform for supporting a gemstone to be assessed, one or more light source to provide uniform UV and non-UV illumination, an image capturing component, and a telecentric lens positioned to provide fluorescent images of the illuminated gemstone to the image capturing component. Also provided are methods of fluorescence analysis based on images collected using such an apparatus.

Method and systems are presented for authentication of precious stones, according to their natural ID and/or predetermined markings created in the stones, based on unique characteristic radiation response of the stone to predetermined primary radiation.

Method and systems are presented for authentication of precious stones, according to their natural ID and/or predetermined markings created in the stones, based on unique characteristic radiation response of the stone to predetermined primary radiation.

Provided herein is an apparatus for assessing a color characteristic of a gemstone. The apparatus comprises an optically opaque platform for supporting a sample gemstone to be assessed, a daylight-approximating light source to provide uniform illumination to the gemstone, an image capturing component, and a telecentric lens positioned to provide an image of the illuminated gemstone to the image capturing component. Also provided are methods of color analysis based on images collected using such an apparatus.

Provided herein is an apparatus for assessing a color characteristic of a gemstone. The apparatus comprises an optically opaque platform for supporting a sample gemstone to be assessed, a daylight-approximating light source to provide uniform illumination to the gemstone, an image capturing component, and a telecentric lens positioned to provide an image of the illuminated gemstone to the image capturing component. Also provided are methods of color analysis based on images collected using such an apparatus.

Provided herein is an apparatus for assessing a fluorescence characteristic of a gemstone. The apparatus comprises an optically opaque platform for supporting a gemstone to be assessed, one or more light source to provide uniform UV and non-UV illumination, an image capturing component, and a telecentric lens positioned to provide fluorescent images of the illuminated gemstone to the image capturing component. Also provided are methods of fluorescence analysis based on images collected using such an apparatus.

Provided herein is an apparatus for assessing a fluorescence characteristic of a gemstone. The apparatus comprises an optically opaque platform for supporting a gemstone to be assessed, one or more light source to provide uniform UV and non-UV illumination, an image capturing component, and a telecentric lens positioned to provide fluorescent images of the illuminated gemstone to the image capturing component. Also provided are methods of fluorescence analysis based on images collected using such an apparatus.