Blog
Diamond insights, not sales pitches.
Guides on selling, buying, and understanding diamonds — written for the side without a counter.
How Much Is My Diamond Worth? A Realistic Guide
The honest answer: probably less than you think. Here's how to calculate what your diamond is actually worth on the resale market.
GIA vs IGI vs GSI: Which Diamond Certificate Matters?
Not all diamond certificates are created equal. Learn which labs are trusted by jewelers and how certification affects your resale value.
How to Sell an Engagement Ring After Divorce
A practical guide to selling an engagement ring — emotionally and financially. What to expect, where to sell, and how to maximize value.
Lab-Grown vs Natural Diamonds: What Happens at Resale?
Lab-grown diamonds cost 70-80% less retail — but what are they worth when you try to sell? The answer might surprise you.
Diamond Prices in 2026: What the Market Looks Like
Natural diamond prices have stabilized after the lab-grown disruption. Here's what that means for sellers in 2026.
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What these guides cover
Selling, valuation and the paperwork around them. The selling guides walk through what a stone is worth on each rung of the resale ladder, which routes exist, and what each one pays in money and in time. The education pieces cover the four Cs, the difference between grading labs, and how a certificate changes an offer. The valuation pieces explain how a number is produced and, more usefully, which assumptions it rests on.
Every post states the range it is quoting and what that range is drawn from — retail listings, buy-back offers, or a price-list heuristic — because "what is my diamond worth" has no single answer and any guide that gives one is hiding the conditions. Where a figure is an estimate, it says so. Where something is genuinely unknown until a stone is in front of a buyer, it says that too.
Each article carries the date it was written. Diamond pricing moves, lab policies change, and the platforms that buy stones come and go, so a guide with a date on it is more useful than one that claims to always be current.
How to use the guides together
Start with an estimate on the calculator so you know the four bands for your own specifications, then read whichever guide matches the decision in front of you. If the goal is selling, the divorce, inherited jewellery and "how much is my diamond worth" pieces cover the routes and their timelines. If the goal is buying, the certificate and four Cs guides come before any shopping.
Nothing here replaces getting the stone graded and getting two written offers. The guides exist so that when a number is put in front of you, you know which rung of the ladder it came from.
Frequently asked questions
How do I find out what my diamond is worth?
Three steps, in order: run the calculator with the grades from your report to get the four bands, then take the stone to two dealers for written offers, then compare. The first offer is rarely the best one and collecting a second costs nothing.
Which certificate should I trust?
GIA is the reference the trade grades against. Other labs can be a grade more generous on the same stone, and a house certificate without a recognised lab behind it is priced as a discount. The certificate guide on this site compares them side by side.
Can I sell a diamond without a certificate?
Yes. Buyers grade an unreported stone in-house and price it accordingly, which means you carry the grading risk in the form of a lower offer. A lab report is worth buying when it changes the offer enough to pay for itself — usually for larger stones, rarely for small ones.
How often are the guides updated?
Each post shows the date it was written, and guides are revised when the numbers or the market behind them change. If a guide is older than the current price list, treat its ranges as a framework and refresh the figures with the calculator.