For eight years, Scott Shaffer has been teaching the kids in his physics classes at Andover High School that it's possible to make diamonds from people's hair, ashes or, if you can amass enough of them, even fingernail clippings.
"You mean, it's possible in theory?" they ask. "No," he responds. "It can be done for real."
And to prove his point, now he's really doing it. He has opened DNA Diamonds, a shop in the Rosedale mall that makes diamonds from people's carbon.
"The kids think there's a creepy factor to that, and there probably is," he admitted. But he also has some fun with it. His wedding ring has a diamond in it, and whenever he wants to get his students' attention, he waves it in their direction and says, "Do you have any idea who this is?"
It's actually a mined diamond, but it won't be for long. As soon as his 18-month-old son has enough hair to spare, he's going to combine hair clippings from his wife, son and himself to make a new diamond for his ring.
Shaffer says his store is the first of its kind in the world. Other companies offer similar services by mail, but he feels strongly that a big part of making a personalized diamond is finding out about the personality it represents.
"The first thing we do is sit down and talk about the person," he said. "Every person has a story, and some of them are amazing stories."
It's also a chance for the teacher in him to come out. He loves to explain the method he uses to make the diamonds, which basically is the same thing that occurs in nature. The machines just lop a couple million years off the process.