Genuine Diamond Pendant w Nice Chain Necklace

Not a flimsy piece. 925 sterling silver surrounded by genuine diamonds (Tested, guaranteed) I don't know the carat weight. Combined weight is 5 grams. Very elegant. I am not familiar w makers marks, Please refer to all pics for best description and details. Lovingly worn and card for. Excellent condition. Comperable to what you could purchase at Kays for appox. $450