About Us

Products

Products

Products

GemLUX® KROMA / KRISTA

GemLUX KROMA and KRISTA gemstone imaging devices

GemLUX® KROMA™ / KRISTA™

GemLUX® KROMA™ / KRISTA™ is a cutting-edge photomicrography imaging device that brings objectivity and consistency to gemstone evaluation. By digitizing human visual perception, KROMA™ and KRISTA™ eliminates the subjectivity and variability that have long plagued the industry, particularly with capturing colour-faithful images of gemstone and its corresponding colour grading. KROMA™ and KRISTA™ share the same advanced photomicrography capabilities to capture images and 3D-Videos of gemstone appearance and inclusion details, with the exception that KRISTA™ is additionally equipped with components to acquire optical properties such as birefringence, pleochroism and UV absorption.

Key features include :

  • specially engineered optical components dedicated to capture gemstone appearance, colour, inclusion details and optical properties with precision and high dynamic range.
  • illumination system designed and calibrated to optimal colour temperature (CCT) and colour rendering (CRI) so that colour-faithful images of gemstones are captured.
  • highgamut colour touch-screen to render the image of gemstones accurately.
  • User-friendly and intuitive software interface for seamless and easy operation. 

BenEfits

Acquire and share gemstone images and 3D-videos

Acquire, own and share colour-faithful gemstone images and 3D-videos, and benefit from the added and invaluable  insights to support your buy-sell decision-making.

AI-powered gemstone assessment

Obtain accurate, objective and consistent results in gemstone assessment, leveraging AI-models trained on a vast expert-labelled dataset.

Gemstone digital twin with GemCIPHER identification

Construct the digital-twin of your gemstone based on its appearance and photomicrographic map of its inclusion, uniquely tagged with an AI-generated identification called GemCIPHER™.

Secure digital transactions with GemPASSPORT

Execute digital transactions securely and with trust in e-marketplaces utilizing Porolis’ immutable GemPASSPORT™ that incorporates images of gemstone appearance and inclusions, and unique digital fingerprint.

Discover how KROMA / krista can help you assess gemstone quality fast and accurately

Technical Specifications

Dimensions / Weight

325 x 180 x 205 mm  /   4kg

Power

120-240 V   /   12 VDC Power Adapter   /   120 W

Camera

CMOS 8MP (2840 x 2840 pixel)

Illumination

LED   /   CCT = 6500 K   /   CRI > 95%

Display

8” TFT-LCD Touch-screen

External Ports

HDMI x 1   /   USB 3.0 x 1

Wireless Comm

Wireless Comm

Software

OPTAi   /   Windows 11

Dimensions / Weight


Power


Illumination


Windows


Compliance

300 mm x 300 mm x 100 mm / 600 g


12 VDC @ 2.5 A


LED


Windows 11


ROHS, WEEE (Directive 2002/96/EC), CE EMC, FCC

Dimensions / Weight
325 x 180 x 205 mm  /   4kg / 600 g
Power
120-240 V / 12 VDC Power Adapter / 120 W
Camera
CMOS 8MP (2840 x 2840 pixel)
Illumination
LED / CCT = 6500 K / CRI > 95%
Display
8” TFT-LCD Touch-screen
External Ports
HDMI x 1 / USB 3.0 x 1
Wireless Comm
Wireless Comm
Software
OPTAi / Windows 11

Downloads

Warranty Information

Learn more
about Porolis

Stay up to date on new products, AI application in gems field, expert advice and more. Subscribe to our e-newsletter

Tel : +65 6473 8878
Email : inquiry@porolis.com

14, Kung Chong Road,
#05-01 Lum Chang Building
Singapore 159150

©2025 Porolis Technologies | All Rights Reserved

Since 2022

Thank You

The form was submitted successfully.