Given to me in early 1980s from my Mom. Thought it was glass, but tested with Presidium Gem Tester II and result was in ruby, sapphire range. : r/ Gemstones

Antique 1910 Carnival Souvenir Ruby Flash Pressed Glass Red Etch Cream – Lori Bilodeau Antiques

Gem News From Pala International

Learn about fine minerals & gems at the Wisdom Pocket Blog

Presidium Gem Tester II (PGT II) Testing Diamond, Sapphire, Ruby, Amethyst, and Calibrating

WN00, PDF, Gemstone

Gem News From Pala International

Presidium® Gem Tester II Colored Stones Diamond Testing Machine – SEP Tools

NOTE: The calibration may be affected during shipping. If you have issues, reach out to the seller. INDUSTRIES MOST TRUSTED gemstone tester redesigned

Presidium Instruments Gem Tester II (PGT II) Now with Assisted Thermal Calibration (ATC) for Identifying Diamonds/Moissanites and Common Colored

MUST READ INSTRUCTIONS BEFORE USING | Presidium is available for any troubleshooting assistance THINNEST RETRACTABLE PROBE TIP | Retractable

Presidium Instruments Gem Indicator (PGI) Handheld Tester for Identifying Diamonds and Common Colored Gemstones

Discover the Groundbreaking Synthetic Ruby Identifier by Presidium

PDF) A statuette containing a large natural blister pearl.

MUST READ INSTRUCTIONS BEFORE USING | Presidium is available for any troubleshooting assistance THINNEST RETRACTABLE PROBE TIP | Retractable

Presidium Instruments Gem Indicator (PGI) Handheld Tester for Identifying Diamonds and Common Colored Gemstones

CryptoPunkets #828 - CryptoPunkets