Updated
Across 23 gold opal rings scanned with GemstoneAI, the middle value was $900. Half came in between $540 and $1,200.
From 23 scans by 16 people in the GemstoneAI app, May 21, 2026 to November 8, 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 | $700 | $580 to $1,050 | 7 |
| 2 carat or more | $950 | $920 to $1,400 | 9 |
Opal value depends on its play of color: bright, broad flashes, a dark body tone and few cracks raise it. Doublets and triplets, thin opal layers on a backing, sell for far less than solid opal.
In gold, the metal sets a floor. 14K gold is worth about $76.28 a gram as metal today, so 5 grams of 14K holds about $381.39 of gold. Read the stamp, usually inside a band, on a clasp or on an earring post: 14K or 585, 18K or 750, 10K or 417. Without a readable stamp, GemstoneAI usually prices gold as 14K. GP, GF or HGE after the karat means plated or filled, which holds far less 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 23 GemstoneAI scans, the middle first-read value was $900, and half came in between $540 and $1,200. 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. Know the melt value of the gold first, since no fair offer should fall far below it.
Gold opal rings whose main stone the app estimated at 2 carats or more had a middle value of $950 across 9 GemstoneAI scans, with half between $920 and $1,400. Color, clarity and cut move a stone of the same size a long way.