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

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

PDF) A statuette containing a large natural blister pearl.

blocktrail-webwallet/src/lib/zxcvbn/dist/zxcvbn.js.map at master · blocktrail/blocktrail-webwallet · GitHub

gem-news-2010-v3 — Pala international

Deep Mystery - Perfect Abstraction

Learn about fine minerals & gems at the Wisdom Pocket Blog

Presidium Gem Tester II (PGT II) - Performing a test and Reading Results

BEYC #679 - Bored Eye Yawn Club

Baltic Jewellery News (September 2022) No. 42 by Baltic Jewellery - Issuu