Isle Royale Treasures

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Isle Royale Treasures FREE shipping within the United States! Isle Royale Greenstone

One of the rarest gemstones in the world and one of the most valuable American gemstones.

Our mission is to create Michigan's finest quality Isle Royale Greenstone Jewelry.

*All of our genuine Isle Royale greenstones were purchased in the rough from a certified pre-1915 estate collection. Just like diamonds, Greenstones formed in ancient lava flows one billion years ago. Greenstones are more rare than diamonds but not nearly as costly in comparison. Chlorastrolite has been discovered in only one geological area in the world. Isle Royale Greenstones are the most prized for their beauty by museums and collectors. Isle Royale later became a national park in 1940, so from that date forward it is illegal to collect greenstones from the island & its beaches. The gems featured in this limited collection were sourced from an estate of a long-ago treasure hunter, who had collected them on the beaches of Isle Royale prior to 1915. Petoskey stone which is a fossil is known as the Michigan state stone, but in 1974, Greenstone became the official state Gemstone.

*This article was written & copyrighted by Isle Royale Treasures

10/08/2026

Freshly handcrafted Isle Royale greenstone pendants just hit the shop! Own a piece of Michigan’s rarest gem with that perfect chatoyant glow.

🔥 Limited pieces available!
👉 IsleRoyaleTreasures on Etsy (Link in bio)





10/06/2026

🍎 Get ready for a sweet weekend in Charlevoix! 🍏

We are thrilled to announce that Isle Royale Treasures will be at the 47th Annual Charlevoix Apple Fest! Come kick off the fall season with us from October 9th through the 11th in beautiful downtown Charlevoix.

Stop by our booth to explore our latest collection, say hello, and celebrate all things autumn. Grab a hot c***r, enjoy the crisp Northern Michigan air, and shop local!

Where: East Park/Mason Street,Downtown Charlevoix, MI
When: Oct 9 & Oct 10: 10AM–6PM | Oct 11: 10AM–4PM

See you there! ✨🍂

09/22/2026

Isle Royale Treasures will be at the Pentwater Fall Festival 2026 on September 26 & 27! 🍂

Come enjoy a beautiful fall weekend and stop by our booth to shop our unique Isle Royale-inspired treasures!

🍁 September 26: 10AM-5PM
September 27: 10AM-3PM
📍 The Village Green
(231 S. Hancock St. Pentwater, Michigan)
🎃 Fall vibes • Local vendors • Shopping • Fun for everyone!

We can’t wait to see you there!


09/16/2026

Isle Royale Treasures will be at the Art in the Village festival in Clarkston this weekend! Come explore our collection of unique, hand-crafted pieces inspired by the wild beauty of Michigan’s legendary national park.

📍 Where: Depot Park, Clarkston, MI
📅 When: Saturday, Sept 19 | 10 AM – 5 PM
Sunday, Sept 20 | 10 AM – 4 PM
🎟️ Admission: Free!

09/15/2026

Come visit Isle Royale Treasures at the ArtWalk Owosso 2026 on Friday September 18 from 4–8 PM! We’ll be bringing our handcrafted jewelry featuring authentic Isle Royale Greenstone, Michigan’s state gemstone. We can’t wait to see you there!

📍 Downtown Owosso, Michigan
📅 September 18, 2026
⏰ 4–8 PM

09/10/2026

Rockford, we are coming for you! sle Royale Treasures is thrilled to be part of Art in the Park(ing) Lot, hosted by the Rogue River Artist Association! Rockford's Art in the Park

Come spend a beautiful Saturday exploring incredible local art, meeting the makers, and finding the perfect new addition to your home.

📆 Saturday, September 12, 2026
⏰ 10:00 AM – 4:00 PM
📍 Rockford Footwear Depot Parking Lot (235 North Main Street, Rockford, MI)

Tell a friend, grab a coffee, and come out to support the West Michigan art community. We can’t wait to see your familiar faces! ✨

09/08/2026

A fresh collection of handcrafted Isle Royale Greenstone rings is now available on Etsy!

Each ring features a beautiful piece of Michigan’s rare greenstone, with its own natural colors, patterns, and character. Every stone is a little different, making each ring truly special. ✨

We love seeing these little pieces of Michigan find their way to new homes! 💚

👉Link in bio: isleroyaletreasures.etsy.com

09/07/2026

✨ FRESH FROM THE BENCH! ✨

Brand new, handcrafted Isle Royale Greenstone pendants have just dropped!

Forged by ancient lava and polished entirely by hand right here in Michigan, each of these one-of-a-kind statement pieces showcases the stunning, unique “turtleback” patterns of Michigan’s rare state gemstone. No two are ever exactly alike! Which one is calling your name? Grab yours before it’s gone!

Shop the new collection now:
🔗 Link in bio (isleroyaletreasures.etsy.com)

Labor Day weekend plans? Sorted! 🌊 Join Isle Royale Treasures at the 50th Annual All Crafts Fair in beautiful South Have...
09/03/2026

Labor Day weekend plans? Sorted! 🌊 Join Isle Royale Treasures at the 50th Annual All Crafts Fair in beautiful South Haven!

We are so excited to be part of this landmark 50th-anniversary celebration. Come soak up the lakeshore vibes and shop a curated selection of our favorite handmade treasures.

📆 September 5: 10AM-5PM
September 6: 10AM-4PM
📍Stanley, Johnston Park, South Haven, MI

It’s the perfect weekend to support small businesses and find something truly unique. See you by the lake! 💙

08/18/2026

Address

Imlay City, MI

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