Duration: (29) ?Subscribe5835 2025-02-21T06:38:55+00:00
GemPen® \u0026 Darkroom - Screening Natural \u0026 HPHT Diamonds
(32)
GemPen® / Screening Four CVD Synthetic Diamonds
(29)
GemPen® Premium \u0026 Darkroom - Screening Synthetic Ruby
(20)
GemPen® Screening Melee Diamonds
GemPen® Premium \u0026 Darkroom - Screening Verneuil Synthetic Sapphire
(15)
GemPen® Screening a bracelet set with HPHT grown diamonds.
(22)
GemPen® Demonstration
(1:27)
GemPen -The Professional Diamond Tester and Screener
(41)
GemPen® User Guide Quick Start Tutorial
(1:31)
GemPen® Diamond Screener \u0026 Darkroom Tutorial - Natural or Lab Created?
(1:50)
Laboratory-grown Diamonds Comparative Analysis of Portable Instruments for Screening and ID
(29:20)
Introducing the GemPen by Gemometrics
(3:2)
GEMPEN DARKROOM- CVD/HPHT Diamond Screener
(1:1econd)
GemPen® Tutorial - Natural or Lab Created Diamonds?
(2:)
GemPen® User Guide / Quick Start Tutorial
(1:11)
GemPen® Diamond Screener Tutorial
(1:59)
GemPen® full video.. watch till the end for understanding about filter 4 !
(3:36)
GemPen® Darkroom - Sapphire
(48)
Screening Diamond Rings with Filter 1 \u0026 4
(39)