The chain measures about 18 and 1/8 inches long, from end to end, and will fit, closed, at just over approximately 18 and inches in length. The chain is approximately 1.585 millimeters, or about 1/16 of an inch, wide. Stamped on an inline lozenge, "925 Italy", and signed with an "N" inside a rectangle maker's mark. Stamped, "925", again on the spring ring clasp.
The pendant measures just over approximately 7/8 of an inch, or about 16 millimeters, high, by just over approximately 11/16 of an inch, or about 17.5 millimeters, wide, and roughly about 1/8 of an inch, or approximately 3.17 millimeters, thick not including the hidden bale rings. (Included you'll see a US Quarter in the photographs, for the measurement-challenged and ruler-averse.) The pendant is stamped, "925 china", and signed with a capital, "N", on a lozenge on the back.
Combined weight is approximately 2.96 grams, which includes the stone weight, of course.
This necklace is in excellent unworn vintage condition, new, on the original card but previously purchased and stored, tag mostly removed from the back. It was removed from the card only long enough to polish, photograph, weigh and measure it. The card is in nice condition, not soiled, but has part of the original sticker still attached.
A very pretty, modern take on a classic open heart pendant necklace. Vintage in age, but new and never worn, a lovely and well-made signed Sterling silver and cz open heart pendant necklace.