You'll get as pictured one 14K solid yellow gold 18" box chain necklace with diamond open heart pendant, the gold around big diamond is white gold.
Weight: total 3.44 grams.
Heart size: 15.11 mm x 17.65 mm.
Marking: 10k on clasp, tag, and back of pendant, tested 10k solid gold.
It is beautiful. Buy and enjoy!