Gorgeous 18K Yellow Gold and diamond necklace

Materials: 18K Yellow Gold Chain Type: Cobra Necklace Length: 16.75" Hallmarks: 750 59 AR Total Weight: 4.70 dwt Center Stone Type: Diamond Center Stone Shape: Single Cut Center Stone Count: 23 Center Stone Dimensions: 1.30 mm - 1.50 mm Total Center Stone Carat Weight: 0.30 ozt Center Stone Color Grade: G - H Center Stone Clarity Grade: I1 - I2 Primary Stone(s) Type: Diamond Primary Stone(s) Dimensions: 1.30 mm - 1.50 mm Total Primary Stone(s) Carat Weight: 0.30 ozt Primary Stone(s) Color Grade: G - H Primary Stone(s) Clarity Grade: I1 - I2 Solid 18K yellow gold and solid size and weight, it is almost too big for me.