This dainty ring is from the Victorian period. It is marked 14k and at the back, has in hand engraving, the word Mizpah which is an emotional bond between people who are separated (either physically or by death). The opal is natural and is really pretty. It is 10mm by 7.5mm. The ring is presently a size 4 1/4. It weighs 2.2 grams. A real treasure!