"Nikki Jewel is the consummate professional. Not only is she hard working and dedicated to her chosen field, she instills that in her riders. She is a great rider, great teacher and takes impeccable care of her horses. Her facility is top of the line and her business runs to the highest standard. I recommend Nikki very highly."
- Geoff Teall

"With Nikki Jewell's coaching and guidance my daughter has learned techniques that have contributed to her skill and confidence as an equestrian. She can enter the show ring knowing what to expect, how to approach each jump and have success with her rounds. Nikki has demonstrated amazing skills with training and creating athletes from all the horses under her care through knowledge and passion about their success, health and well-being. Gem Stone farm has been a great experience for my daughter over the past two years." 
- Kacy Hertz

"Even though I am not the best rider nor do I attend  the most shows, I never feel less than a valued client at Gem Stone. While I am able to ride only on weekends, I never have to worry about my horse getting the best possible care and attention from all the Gem Stone staff. He is always pampered and well cared for and extremely happy."
- Betsy Clark

"At age 56, I am one of Nikki's 'mature' riders. I have been riding since I was 8 years old and have been riding at Gem Stone Farm for almost 10 years.  Nikki and Nicole truly care about their horses and students and it shows in the atmosphere of the barn and in the happy attitudes of both their two and four legged clients. They understand the needs of their junior and adult riders. Nikki and Nicole do not take shortcuts in the care and training of their horses which is reflected in the Gem Stone horses and their relaxed way of going and how they enjoy their work. It is a privilege to ride in such an environment."
- Vivian Cohn