APPRAISER: You told me that your grandmother left this pendant to you. This was given to her by her second husband.

APPRAISER: When were they married?

GUEST: They were married in 1918.

APPRAISER: Now, I understand you had other jewelry from her, but this was the piece you chose to bring to the ROADSHOW today. Why did you pick this piece?

GUEST: Because I like it. I've worn it a great deal of the time over the years since she gave it to me. It sits in just the right place on my neck, and it's beautiful.

APPRAISER: And what do you know about it? What did your grandmother tell you?

GUEST: She said that it was a yellow diamond and...

APPRAISER: And did you believe her?

GUEST: I didn't know, because it seemed pretty big, and Granny kind of liked to... If she wanted you to like something, she sometimes sort of embellished on its attributes so that...

APPRAISER: I see, I see. Well, I must tell you that when you came and showed it to me and you said you weren't sure that it was a diamond, I kind of looked at it and was actually curious myself because it has a beautiful vivid yellow color. And on closer examination, I realized it was a diamond; she was telling the truth.

GUEST: Oh, really?

APPRAISER: Yes. Not only is it a diamond, but it's actually an important size for a yellow diamond because it measured over one carat.

GUEST: Wow...

APPRAISER: Yeah. And it's an old European-cut pear-shaped. And you know what else I found out about it? When I turned it over, it has a signature. The signature... do you have any idea?

GUEST: No, because I looked to see if there was one and couldn't find anything.

APPRAISER: It's Tiffany and Company. Yeah.

GUEST: Wow...

APPRAISER: This is Tiffany and Company, and quite rare, because of that period-- and I would date it between 1918, 1920-- you rarely found a yellow diamond in a piece of Tiffany jewelry. And I even think this was designed by Louis Comfort because it has that kind of wonderful wire work. So now we've got to appraise it. It's a tough appraisal because it's rare-- $20,000 and up. What do you think?

GUEST: Holy mackerel! I can't believe...

APPRAISER: Yeah, so you really hit the spot today. You knew what to pick, and…

GUEST: I almost didn't bring it.

APPRAISER: And your grandmother was not telling a lie. And she left you something great.

GUEST: That's wonderful!

APPRAISER: Isn't that great?

GUEST: Yes.

APPRAISER: Thanks for coming.

GUEST: That is so exciting!

APPRAISER: Great!