AmScope 3.5X-90X Advanced Jewel Gem Stereo Zoom Microscope

AmScope 3.5X-90X Advanced Jewel Gem Stereo Zoom Microscope



Regular price $1,770.99
Regular price $2,124.99 Sale price $1,770.99
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AmScope 3.5X-90X Advanced Jewel Gem Stereo Zoom Microscope
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This high quality microscope is designed for professional jewelers and gemologists. It includes a 3.5X-90X super widefield zoom stereo microscope head, 3D jewelry/gem clamp (tweezers), rotatable round stage with darkfield iris condenser and professional GEM stand. It offers 8" (200mm) working distance, 2-1/2" (65mm) super wide field of view and 26:1 large zoom magnification range. The microscope is illuminated with a 30W darkfield halogen light built in to the base and a 7W gooseneck rectangular fluorescent incident light box, providing rich spectrum, high-temperature color and close-to-daylight illumination. The incident light box shines light down onto objects, used to observe the surface details and fine structures of jewels or gemstones. The transmitted light through the darkfield condenser is designed for the examination of the inside quality of diamonds. This microscope is manufactured under the strict guidelines established under ISO 9001:2000 Standards.


  • A high quality professional 3.5X-90X trinocular jewelry/gem microscope with rotatable darkfield stage
  • A right microscope for distinguishing genuine & imitation gems and judging production origin
  • Comfortable Ergonomic design
  • High resolution sharp images with both bright and dark field illumination
  • Large rotatable round stage with built-in darkfield condenser, 3D gem clamp and graduations
  • Adjustable stand for easy and comfortable observation
  • Possible to measure gem angles
  • Advanced halogen system providing rich spectrum, high-temperature color, and close-to-daylight illumination
  • Flexible gooseneck-supported rectangular incident (top) fluorescent lamp
  • Bright halogen bottom light with dimmer for best darkfield illumination
  • Built-in darkfield condenser with iris
  • 3D flexible gem clamp
  • 45 degree inclined 360 degree rotatable trinocular head
  • Trinocular port for adding photo or video capability
  • Large zoom magnification range
  • High resolution optics with great flatness and contrast
  • Sharp stereo erect images over a wide field view
  • Crystal clear original true color images
  • Eye tube with adjustable diopter
  • Accurate alignment ensuring a fatigue-free viewing
  • Full optical glass elements
  • Precise ground glass lenses
  • All metal mechanical components
  • Adjustable interpupillary distance
  • Rubber eye-guards included
  • Manufactured under restrict ISO 9001 quality control system
  • Five (5) year manufacturer warranty for microscope
  • Unbeatable lowest price guaranteed or the difference back!
  • Satisfaction guaranteed or your money back!


  • Head: 45 degree inclined 360 degree swiveling trinocular
  • Eyepiece: 30mm widefield WF10X/20
  • Barlow Lens: 0.5X and 2.0X
  • Objective: 0.7-4.5X
  • Zoom Range: 26:1
  • Field of View: 2-1/2" (65mm)
  • Working Distance: 8" (200mm)
  • Interpupillary Distance: 2-3/16" - 2-15/16" (55mm-75mm)
  • Stand: gemology stand, inclinable up to 38 degrees
  • Iris Diaphragm: 2 - 41mm
  • Focal Range: 4-3/8" (110mm)
  • Stereo Angle: 12.4 degree
  • Diopter Adjustment: +/-5dp
  • Top Illumination: 7W fluorescent
  • Bottom Illumination: 30W halogen
  • Power Supply: AC 110V 60Hz
  • Accessories: dust cover, eye-guards and clips
  • Shipping Weight: 50 lbs

    Packing List:

  • One Trinocular Stereo Zoom Microscope Head
  • One gemology microscope Frame with Stage, Base and Darkfield Illumination House
  • One Pair of Super Widefield WH10X/20 Eyepieces
  • One Super Widefield 0.5X Barlow Lens
  • One Super Widefield 2.0X Barlow Lens
  • One Rectangular Fluorescent Lamp
  • One 3D Gem Clamp (tweezers)
  • One Dust Cover
  • User's Manual

  • AmScope GM400TZ Microscope


    Shipping & Returns


    We provide complimentary UPS ground shipping for online orders exceeding $99 to all destinations within the Continental U.S.A. Most items are drop-shipped from one of our suppliers. Due to the highly configurable nature of microscopes and our vast product portfolio, lead times can vary. Should you need expedited shipping, kindly reach out to us for a personalized quote and to ensure your availability.

    We welcome international orders on a case-by-case basis. Buyers are accountable for any international duties, taxes, brokerage, or import fees that may be incurred. We encourage customers to reach out to us at prior to purchase, to ensure the microscope will meet their needs and expectations.


    For most items, we accept returns within 14 days of purchase, with the buyer responsible for covering all shipping charges. Please refer to our Full Returns Policy for further details. (Note: Many returns stem from purchasing the wrong product for a specific application. To prevent this, we recommend consulting a Microscope Central expert before making your purchase.

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