Shiv Patel
Google
Went here as part of a tour to Antigua and it did not disappoint. There's a museum component so you can learn what makes Guatemalan jade unique which was really interesting. In addition, they have some really nice pieces of jewelry including bracelets, necklaces, pendants, and more. They make great unique souvenirs or gifts to loved ones as the jade here is a rarer variety and the craftsmanship of the jewelry is impeccable.
p.s. the shop also has a very cute and fluffy Japanese Spitz, although it seems he is asleep most of the day.