Updated
Across 27 silver amethyst rings scanned with GemstoneAI, the middle value was $130. Half came in between $100 and $180.
From 27 scans by 20 people in the GemstoneAI app, June 28, 2026 to November 6, 2026, with test and staff accounts left out and no one person making up more than a quarter of them. Each figure is a first-read fair market estimate from photos, about what a mainstream jeweler would sell a similar item for. They are not appraisals, sale prices or offers. How GemstoneAI values jewelry.
Sorted by the estimated size of the main stone. The size is the app's estimate from the photo, not a measurement.
| Main stone | Middle value | Middle half | Scans |
|---|---|---|---|
| 1 to 2 carat | $120 | $90 to $220 | 14 |
| 2 carat or more | $180 | $150 to $180 | 9 |
Amethyst is affordable even in large sizes, so the metal and the maker often set the value. Deep, even purple is worth more than pale or patchy color.
In silver, the metal adds little. Sterling silver is worth about $1.54 a gram as metal today, so 5 grams holds about $7.68 of silver, and the stone and the workmanship carry the rest. Sterling is stamped 925 or STER. Gold-colored jewelry stamped 925 is gold-plated silver, and vermeil is sterling with a layer of gold.
A signed maker, age and good condition push a value toward the top of the range. Small or included stones, heavy wear and missing stones pull it toward the bottom.
Photograph it, then take a close-up of the stamp. GemstoneAI identifies the stone, reads the metal and gives a first-read value with similar items for sale. Your first scan is free.
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Across 27 GemstoneAI scans, the middle first-read value was $130, and half came in between $100 and $180. Yours depends on the stone's size and quality, the metal and its weight, and the maker.
Less than these figures. They are fair market estimates, about what a mainstream jeweler would sell a similar item for, and dealers and pawn shops buy below that. Silver adds little as metal, so an offer rests mostly on the stone.
Silver amethyst rings whose main stone the app estimated at 2 carats or more had a middle value of $180 across 9 GemstoneAI scans, with half between $150 and $180. Color, clarity and cut move a stone of the same size a long way.