Rare! Beautiful Vintage White Jadeite 3 Strand Choker 162 Grams 18 mm X 13 mm

Rare! Beautiful Vintage White Jadeite 3 Strand Collar 162 Grams 18 mm X 13 mm I am keeping this incredible piece for myself. Maybe my granddaughter will sell it to you someday :-). There is nothing like it currently available that I can find. Absolutely 1000% will keep this necklace if it doesn't sell. I can not find another like it. I'm inclined to believe it is Artisan Made. Potentially a custom necklace/collar. It's just so amazing & beautiful. I wore it around the house for an evening & it stayed relatively cold while wearing. It feels incredible on. Each stone bead is a milky white color with a speckling quality when viewed up close. Each stone tests to White Jadeite on the Presidium Gem Tester II.  Each stone is individually knotted and measures approximately 18 mm by 13 mm and is in the range of 6.5 mm to 7.5 mm thick give or take. These stones are extremely uniform, but there is variation to sizing less than a mm. There are 66 stones total, 22 per strand. The necklace measures 17.5" with a 1.5" extension finished with a tiny white jade globe bead. The necklace weighs 162.73 Grams on two different scales. I tried acid testing the clasp, the Vintage looking end caps & the extension chain & none of it comes back as Sterling or 10K to 22K gold. None of it is magnetic. Nothing reacts to a rare earth magnet, the same strong magnet a jeweler uses. Clasp could be new. It is shinier & newer than other findings.