This is a Hariqua ring featuring a rare jeremejevite gemstone (0.46 carats) set in 18k gold. The ring size is size 13. It is hallmarked with "k18" and "0.46" (though I couldn't photograph it because it's too small). I've worn it 4 or 5 times. Jeremejevite is a rare stone, and it's not often found on the market. Even when it is found, the stones are usually small, so this size is quite rare. A round cut is even more difficult to find. Also, it's a stone prone to inclusions, so gem-quality stones suitable for jewelry are scarce. The color is, in my subjective opinion, a very gentle blue, a very pale ultramarine. It has a "HAPPY BIRTHDAY" engraving, but no specific birthday date. I will include the box, so it could be used as a gift. I believe it's in good condition, but please understand that it's been stored at home by a private seller and is a used item before purchasing. Jeremejevite Jeremejevite Jeremejevite Jeremejevite Jeremejevite Material: Gold Accessories: Box