Conoscope Interference Sphere Ball for Polariscope

Interference Ball / Interference Figure Viewer

The Conoscope is an essential tool for use with a polariscope, designed to magnify and clearly display interference figures within gemstones. This strain-free glass sphere allows gemologists to observe the optic axis and understand the internal optical structure of a gem.

The conoscope provides a 2-D visual representation of 3-D interference patterns, commonly known as the interference figure. It is widely used in gem identification and optical analysis. Conoscopes are also referred to as interference spheres or interference balls.

Features

• Strain-free optical glass sphere
• Black protective plastic housing with convenient handle
• Magnifies optic axis interference patterns
• Ideal for use with standard gemological polariscopes
• Compact, lightweight, and easy to use

Specifications

• Overall Dimensions: 56 × 16 × 8 mm
• Lens Diameter: 10 mm
• Material: Optical glass with protective plastic case
• Warranty: 1 Year

Optional Upgrade

• Larger lens version available for $19.99
  (Please click the “HERE” link in the listing to view the larger lens option.)

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Shipping & Handling

• Handling Time: 1 business day
• Orders paid before 2:00 PM PDT ship the same day

U.S. Shipping

• USPS Priority Mail
  • West Coast: 1–3 business days
  • Central & East Coast: 2–4 business days

International Shipping

• Same shipping cost worldwide
• USPS First Class International: 5–10 business days
• EMS Express (optional): 3–6 business days

Combined Shipping

• Combined shipping available on multiple purchases
• 20% shipping discount on purchases of more than one item
• Contact us for custom shipping discounts when buying multiple items

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Payments

• PayPal accepted

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Returns & Customer Satisfaction

• Full refund or exchange if item is not as described
• 15% restocking fee applies if item matches description
• We are committed to offering high quality at the lowest possible price

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About Us

We are a new eBay seller focused on high-volume, low-margin sales, passing savings directly to our customers. Our goal is customer satisfaction and long-term trust.

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