Wear it Close or Open to Reveal the Surprise Birth Stone Inside. 14k Gold Plated 925 Silver Puffed Heart Pendant with Red Enamel and Heart Shape Gemstone Surprise Inside crafted in 14k Yellow Gold Plated Silver Dimensions: Width: 15.00 mm Length: 30.00 mm1 Stone 1.00 Carats 7 mm Heart Shaped Gemstone Clarity: Clean Free 18 inches chain included Finejewelers Style Number: 303195. Brand: Star K Size/Dimensions: Width: 20.00 mm Length: 25.00 mm Resizable: No Adjustable: No Metal Stamp: 925-sterling-and-14k Diamond Weight: 0.00 Gem Weight: 1.00 Gift Box: Gift Wrapped