Why does June have three birthstones (pearl, alexandrite, moonstone) while some months only have one? - Quora
Birthstone Chart: Know Your Birthstone & It's Meaning, Symbol & Color – Gemone Diamond
New Era Jewelry - June is one of only two months that has three birthstones associated with it, giving the lucky people born in June a choice of gemstones between pearl, alexandrite
Birthstones by Month: Colors & Meanings | What's Your Birthstone? | The Old Farmer's Almanac
There are three gemstones recognized as birthstones for the month of June, Alexandrite, Pear and Moonstone. - Déonne le Roux
June Zodiac Gemstones: Moonstone, Pearl, Sapphire & More!
Expert Guide to June Birthstones - (Jewelry Insider Tips)