Gold Tone 10K Charm Necklace. Gold Tone 10K is approx. 0.42 x 0.52 x 0.11 (HxWxD) including loop. 10K is smooth on both sides. Silver plated necklace is 19 inches plus 2 inch extender chain. Lobster Claw Clasp. Beautiful fashion necklace makes a wonderful gift. PLEASE NOTE: Our products are lead safe, but are not intended for children 14 years and younger.