You first meet Dino in Final Fantasy 15 very early in the course of the story, but returning to him later opens up a series of fetch quests. The first few are pretty simple - head for the marker, locate the ore he's after, and return to him - but the last one is beat left until after you've finished the main story.
Each one gives you a dollop of EXP and a Bracelet, which each one offering increased strength over the previous mission.
The Aspiring Artisan stone location
Recommended level: 6
How to unlock: Receive phone call in Dino shortly after your meeting in the story Reward: 500 EXP, Amethyst Bracelet
Head back to Galdin Quay and speak to Dino, then head for the marked area to the north. There are a couple of Dualhorns that you'll need to tackle, and the ore can be found on the eastern edge of the search area. Return to Dino to complete the quest.
A Stone-Studded Stunner stone locations
Recommended level: 15
How to unlock: Complete 'An Aspiring Artisan'
Reward: 1000 EXP, Heliodor Bracelet
Head back to Galdin Quay and speak to Dino, then head for the Kettier Highland parking space to the north west. The ores are located on the eastern edge of the search area, one on the southern edge, and the last is on the northern edge next to a fishing spot. Return to Dino to complete the quest.
Reliable Royalty stone location
Recommended level: 20
How to unlock: Complete 'A Stone-Studded Stunner'
Reward: 1500 EXP, Sapphire Bracelet
Head back to Galdin Quay and speak to Dino, then head for the Wennath Riverhead parking space in western Cleigne. Run just south of the parking space and take the steps down. Head towards the marked area then make your way east to the river. Follow it along to find a small open area just to the north, and the ore is in the large rock in the middle. Return to Dino to complete the quest.
No Pain, No Gem stone location
Recommended level: 25
How to unlock: Complete 'Reliable Royalty'
Reward: 2000 EXP, Ruby Bracelet
Head back to Galdin Quay and speak to Dino, then head for Myrlwood Dungeon (see our dungeon guide for details of where to find it). The ore is located about half way along the eastern edge of the opening wooded area. Return to Dino to complete the quest.
Need more help? Our Final Fantasy 15 guide and walkthrough can provide tips on the open-world's many quests and activities. Learning how to get AP fast, EXP fast and Gil fast in Final Fantasy 15 will aid you in the many optional dungeons and tombs - including how to open and explore their locked doors. And if you want to get around easier, you can rent a Chocobo, learn the infinite sprint trick and later in the game, get the flying car Regalia Type F. There's also more to see and do with DLC, such as with Episode Gladiolus DLC with its hidden Picker-Upper item locations and Rugged Attire Score Attack reward.
A Treasure Beyond Measure stone location
Recommended level: 55
How to unlock: Complete 'No Pain, No Gem'
Reward: 3000 EXP, Emerald Bracelet
You'll find this as you explore Costlemark Tower, which we have a walkthrough for in that previous link.
It's specifically located after you descend a couple of long spiral ramps - there are more pockets of enemies along the way, but you'll eventually reach the bottom. Head through the exit in the north wall, crawl through the small gap, and turn left into the corridor. The Emerald Stone will be in this room.