white gold over solid sterling silver Diamonds and 29.0ctw Sapphire. natural

It was so hard to catch the true beauty of this precious necklace. A Beautiful 17inch white gold rhodium over solid sterling silver diamond and sapphire necklace. gemstone diamond color l near colorless. clarity S 12. ctw 0.100 ctw. cut round cut gemstone sapphire. color black. gem grade AA. ctw 29.000 ctw. cut oval cut. plating material white gold rhodium. main primary solid sterling silver. primary material weight 26.60 g. natural and unenhanced. brought it from a well known reputable jewelry dealer and I have the receipt with my name and the piece in question