14K Yellow Gold 7.47 Carat Total Weight Round Diamond Adjustable Bolo Tennis Necklace Modern This is the makers mark

This is the makers mark of New York City jewelry company Charles M

Era:Modern

Side Stone Shape: Baguette Diamonds | Round Diamonds

The base is marked with the Dianna head and cartouche for 800/1000 silver but I can not make the letter next to her head as it is also smudged so I am unaware of what city it was assayed in

Composition:18K Yellow Gold

14K Yellow Gold 7.47 Carat Total Weight Round Diamond Adjustable Bolo Tennis Necklace Modern This is the makers markEra: New Composition: 14K Yellow Gold Primary Stone: Sixty Nine Round Brilliant Cut Diamonds Total Carat Weight: Approximately 7. 47 Carats Color Clarity: G H SI1 2 Necklace Length: Adjustable up to 32 Inches Necklace Weight: 20. 2 Grams Item Barcode: 109309