This piece, from my personal collection, has no comparison! I think it is Georgian, maybe earlier.
It is clearly handmade and in extraordinary detail! It is so well made! The inset stones the top one is huge!!are all hand-faceted, clear natural rose cut diamonds. There is only one small one missing at about 5:00 below the very center diamond half-way down the stem! The center diamond looks like it is missing but it is there--just very clear! To the end of the pin it is 5.25. It is 2 wide, at the widest part. If in the Gloucester, MA area, do stop by my shop on Main St--DIVA for an unrivaled selection of pieces from every time period, in every metal and at great prices. I have also been a maker and designer for almost 50 years. If you seek a particular piece, please do let me know! Please contact me with any questions/additional information needs. The item "RARE, AMAZING, ANTIQUE, LARGE, SILVER GEORGIAN PIN / BROOCH W ROSE CUT DIAMONDS" is in sale since Saturday, October 12, 2019. This item is in the category "Jewelry & Watches\Vintage & Antique Jewelry\Fine\Georgian, Pre-1837".
The seller is "bighairedgirl" and is located in Gloucester, Massachusetts. This item can be shipped worldwide.