Blue Marble
NATIONAL GEOGRAPHIC 2025 Gemstone Advent Calendar - Christmas Countdown Calendar for Kids with 24 Gems, Rock Collection, Mini
★★★★★ ✓ Top Pick in Advent Calendars
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Reviewed 23 July 2026 · price checked live
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Overview
The NATIONAL GEOGRAPHIC 2025 Gemstone Advent Calendar - Christmas Countdown Calendar for Kids with 24 Gems, Rock Collection, Mini is one of the most popular choices in Advent Calendars right now. Key highlights include collect 24 stunning gems - the beautiful and award-winning products – blue marble. With an excellent 4.5/5 average rating, it's one of the best-reviewed options in its category.
Key features
- REVEAL A NEW GEM EACH DAY - Each day of December as Christmas approaches, kids can open a gorgeous new gemstone to add to their collection! Includes a collector's pouch to keep all your gems safe.
- COLLECT 24 STUNNING GEMS - The beautiful, polished gemstones for kids in this advent calendar include agate, green aventurine, hematite, sodalite, turquenite, tiger's eye, blue calcite and more!
- DIG OUT A SPECIAL CRYSTAL ON THE FINAL DAY - The final piece in this collection is stunning rose quartz that kids unearth from a mini dig brick, just like a real geologist!
- CREATE UNIQUE JEWELLERY - This Christmas advent calendar includes five jewellery settings so kids can create their own special jewellery with their new gemstones! This calendar brings joy all year long!
- AWARD-WINNING PRODUCTS – Blue Marble, winner of the Toy Association’s prestigious Toy of the Year Award, proudly develops products that foster education, imagination, and creativity, with dedicated customer support to ensure a stellar experience!
