This art deco Cartier pendant is valued for 10X more than the owner thought! | ANTIQUES ROADSHOW

I brought a necklace that was given to my grandmother for her wedding. She passed it on to me to wear my wedding day. It's a beautiful Cartier Art Deco platinum diamond and sapphire pendant. You have over one and a half carats of diamonds and over one carat of sapphires total weight there. Wow. And you have these great geometric square cut sapphires. We sometimes call them emerald cuts. Beautiful platinum chain. So it's stamped on the side, Cartier, here, and it's small. You really do need a loop to see it. And then on the opposite side, it has the numbering. What I love about it is it's almost a transitional piece. This part right here, it's so geometric, right? You have, it's really a square. It's really that typical Art Deco period, but then here it's a little bit softer because in jewelry making, there's really no hard stop, right? You start doing Belle Epoque, then you stop, then you do Art Deco. Now, there's kind of a little bit of a blending. You have the receipt from May of 1929, right before the stock market crash. What's great about this is it closes, and then you have the date here, your relative's initials on the other side, and then my favorite, how it just pops open like an Omar, yeah? Yes. I love that. Do you have any idea the value of your piece? I had it appraised maybe 10 years ago, and I'm thinking that she maybe said $1,500 to $3,000, but the reason I didn't like it was she just didn't look at the box or this or any of the other information that was with it and didn't seem to see it as a whole package. And to me, that's part of what makes it really special. I agree. It's the whole package. People collect just Cartier boxes. Oh, gee, I didn't know that. I would appraise your set retail at $15,000. Wow. Wow, I didn't expect that. Yeah, it's really, really remarkable. It was a beautiful gift. I wonder if that was kind of done that often for an engagement gift, because I got like crock pots and things like that. Well, I guess it depends on your relative, right?