Optika OPTIGEM10 Binocular Gemological Stereo Gem Tool

Description

Grade internal gemstone clarity and verify diamond fracture fills using the Optika OPTIGEM-10 Binocular Stereo Microscope. Built on a specialized gemological base, it pairs a 0.7x to 4.5x Greenough zoom engine (6.4:1 zoom ratio) with an adjustable wire spring gem clamp, delivering continuous magnification from 7x up to 45x. The optical system maintains a generous, fixed 100 mm working distance, giving you abundant room to manipulate stones with tweezers without bumping the objective glass.

Transmitted lighting relies on a high-output 12V/30W halogen bulb focused through an integrated darkfield condenser with a manual iris diaphragm shutter, providing the warm, continuous light spectrum needed to evaluate internal silk lines and feathers. Surface facet luster is illuminated by an incident 12V/10W halogen source feeding a flexible fiber-optic light guide. The 45-degree binocular head features widefield WF 10x/21 mm eyepieces with bilateral diopter adjustment rings across a 51 mm to 75 mm interpupillary range, supported by a 6.2 kg cast frame.

Key Features of Optika OPTIGEM-10 Binocular Stereo Microscope

A professional gemological stereo zoom microscope featuring an iris-equipped darkfield halogen well and a flexible incident fiber-optic light guide. Combines 7x to 45x magnification with a 100 mm working distance, wire gem clamp, and widefield 21 mm eyepieces.

• Continuous 7x to 45x zoom magnification powered by a 0.7x to 4.5x Greenough engine
• Integrated darkfield condenser well with manual aperture iris diaphragm shutter
• High-output 12V/30W transmitted halogen lamp renders authentic gemstone body colors
• Flexible incident fiber-optic light guide powered by a standalone 12V/10W halogen module
• Widefield WF 10x/21 mm high-eyepoint eyepieces with bilateral dioptric adjustment collars
• Generous 100 mm operational working distance leaves ample room for gemological tweezers
• Rotatable wire spring gem clamp holds stones securely over the darkfield aperture
• Sturdy 6.2 kg metal chassis with dual independent analog dimming controls on the base

Darkfield Halogen Well & Fiber-Optic Facet Illumination

Internal inclusions in diamonds and colored stones often wash out under direct brightfield illumination. The specialized darkfield condenser projects steep oblique halogen rays through the gem pavilion, illuminating microscopic crystals, cleavage cracks, and liquid veils like bright stars against an ink-black background. The flexible fiber-optic gooseneck pipe lets you direct focused spot illumination onto exterior facet junctions to verify polish quality and facet symmetry.

Rack-and-Pinion Focus & Adjustable Wire Gem Clamp

The rack-and-pinion focus drive features an integrated tension slip collar, allowing appraisers to dial in focus resistance so the optical carriage never slips down the post. The rotatable wire gem clamp grips rough crystals or cut gems by their girdle, swiveling 360 degrees over the darkfield aperture so you can inspect internal planes from every viewing axis. Bilateral diopter adjustment rings on both ocular tubes ensure tack-sharp focal balance for both eyes.

• Warm halogen illumination reveals true body color and internal inclusion structures
• Flexible fiber-optic gooseneck delivers pinpoint surface lighting on gemstone crowns
• Adjustable darkfield iris diaphragm cuts stray glare when evaluating small melee diamonds

Optika Ten-Year Manufacturer Limited Warranty

Optika backs the OPTIGEM-10 microscope body and optical train with an industry-leading 10-year warranty, covering electrical transformers and halogen lamp sockets for two years. The complete factory package contains the OPTIGEM-10 chassis, wire gem holder clamp, darkfield attachment ring, frosted glass insert plate, universal power cord, dust cover, and manual.