Here are some links to similar items https://www.liveauctioneers.com/item/71452215_chinese-jade-tea-set-for-6
https://www.liveauctioneers.com/item/36768526_18-pc-jade-teacup-and-saucer-set
https://www.liveauctioneers.com/item/48008352_pair-of-chinese-jade-cups-and-saucers
This one is currently for sell so might be worth following to see if it gets the asking price https://www.ebay.com/itm/333971509397?ff3=2&toolid=10044&campid=5338680767&customid=1234&lgeo=1&vectorid=229466&item=333971509397&mkevt=1&mkcid=1&mkrid=711-53200-19255-0&ufes_redirect=true
Another currently for sell https://www.rubylane.com/item/1399379-3055x20Qingx20Jadex20Teacup/Chinese-Antique-1890-Qing-Dynasty-Transparent
Here’s some that sold that are from the 20th century https://www.lofty.com/products/25pc-chinese-green-jade-cups-saucers-spoons-1-rp2c2
Not sure if any of this helps. It might take an in person appraisal by an expert to properly date and value.
Re: Qing Dynasty Jade Tea Set (Cup, Saucer, Spoon)
Here are some links to similar items https://www.liveauctioneers.com/item/71452215_chinese-jade-tea-set-for-6
https://www.liveauctioneers.com/item/36768526_18-pc-jade-teacup-and-saucer-set
https://www.liveauctioneers.com/item/48008352_pair-of-chinese-jade-cups-and-saucers
This one is currently for sell so might be worth following to see if it gets the asking price https://www.ebay.com/itm/333971509397?ff3=2&toolid=10044&campid=5338680767&customid=1234&lgeo=1&vectorid=229466&item=333971509397&mkevt=1&mkcid=1&mkrid=711-53200-19255-0&ufes_redirect=true
Another currently for sell https://www.rubylane.com/item/1399379-3055x20Qingx20Jadex20Teacup/Chinese-Antique-1890-Qing-Dynasty-Transparent
Here’s some that sold that are from the 20th century https://www.lofty.com/products/25pc-chinese-green-jade-cups-saucers-spoons-1-rp2c2
Not sure if any of this helps. It might take an in person appraisal by an expert to properly date and value.