This item is an elongated sterling ring by Tom Lewis. The main stone is malachite and measures 1 1/4" by 3/8".
The ring is 1 5/8" by 3/4" overall. It is marked "Tom Lewis sterling".
The ring size is 6 1/2. It weighs 12.5 grams overall.
There are no marks on the stone. Any blemishes in the pictures are from the lights. Since it is sterling, it can be resized. If you have any questions, please ask. I will always try to point out all flaws or info I have about the item.