The chain measures just over about 18 inches long, from end to end, and should fit at just over roughly 17 and 7/8 inches in length, closed. It is approximately 1.5 millimeters, or just under about 1/16 of an inch, wide. Stamped on the spring ring clasp, "585", marked, "14KT", and, "Italy", on an inline lozenge, and signed with a stylized, "ca" maker's mark.
The pendant measures approximately 1 inch, or about 25.4 millimeters high, bale included, by just over about 1/4 of an inch, or approximately 6.5 millimeters, wide, and roughly 1/4 of an inch deep. The oval stones combined have an estimated carat weight of 3.25 carats. (Included please find a US Quarter in the photographs, for the measurement-challenged and ruler-averse.) The bale opening measures just over approximately 1/16 of an inch, or about 2 millimeters wide. Stamped on the side of the bale, "14K", and signed with a star or flower maker's mark.
Combined weight is approximately 3.63 grams, which includes the gem weight, of course.
This necklace is in very nice vintage condition, but will likely exhibit the expected light surface scratches to the gold from normal wear. The chain has no kinks or bends, and the spring ring clasp works well and holds securely. There is one tiny chip on the bottom edge of the lowermost stone, visible in some of the photos. Lightly cleaned by hand, but it has not been professionally polished.
A very beautiful, feminine and colorful, signed vintage Italian I4K yellow gold and graduated oval pink topaz pendant necklace. A large but delicately styled pendant, with lots of sparkle and color play on a better than average quality chain.