Diamond Appraisals Explained: How Value Is Determined Before You Sell
- Darryl Gaye
- 5 days ago
- 4 min read
If you’ve ever had a diamond appraised, you may have noticed that the number on the paperwork was much higher than what a buyer was willing to pay. This often causes confusion, but the reality is that there are two very different ways to measure a diamond’s worth: appraisal value and resale value.
Understanding the difference between these values is critical if you’re thinking about selling. It can help you avoid disappointment, set realistic expectations, and make informed choices about how and when to sell your diamond.

What Is a Diamond Appraisal?
A diamond appraisal is an expert’s estimate of a diamond’s value, and it is most commonly done for insurance purposes. When you have jewelry insured, the appraiser provides a replacement value — what it would cost to replace the diamond with a similar one purchased at retail.
There are a few key things to know about insurance appraisals:
They are insurance-focused. The number is designed to ensure you could replace the item if it were lost or stolen.
They are based on retail prices. Appraisal values often include jewelry store markups, which can be two or three times higher than the stone’s actual resale market value.
They are not cash offers. A $10,000 insurance appraisal does not mean a buyer will hand you $10,000. It means your insurance company will cover you for that amount.
Other Types of Appraisals
While insurance appraisals are the most common, there are other types sellers may encounter:
Resale Appraisals: Provide a realistic estimate of what you can expect to receive from a buyer.
Estate or Probate Appraisals: Used in legal or estate settings to determine fair market value of inherited jewelry.
Liquidation Appraisals: Often lower than others, reflecting quick-sale value when fast cash is needed.
Each serves a different purpose, but only resale value matters when you’re actually selling.
How Buyers Evaluate Diamonds
When you sell a diamond to a buyer like American Gold & Diamond Buyers, the process looks very different from an insurance appraisal. We determine value based on what the diamond can realistically be resold for in the secondary market.
Factors include:
The 4Cs — Cut, clarity, color, and carat weight form the foundation of diamond pricing. A well-cut 1-carat diamond with excellent clarity and color is worth far more than a larger stone with poor grades.
Market demand — Certain shapes (round, oval) and carat weights sell more easily than others, which influences the offer.
Certification — GIA- or IGI-certified diamonds often sell faster and for higher prices than uncertified stones.
Secondary market prices — Offers are tied to real market activity, not retail store markups.
This resale-driven approach ensures your payout is fair, but it will not match the appraisal number you may have for insurance purposes.
Appraisal Value vs. Resale Value: A Clear Example
Imagine you have a one-carat diamond ring that was appraised for $10,000.
The insurance appraisal is set high to cover replacement cost at retail.
The resale market value might fall between $3,500 and $4,500, depending on quality, certification, and market demand.
The difference often surprises sellers, but it’s completely normal. It simply reflects the gap between replacement pricing and real-world resale value.
Why the Difference Matters
If you bring in an appraisal expecting to receive the same amount in cash, you’ll likely be disappointed. Instead, use the appraisal as a verification tool — proof of the diamond’s quality and characteristics — not as a predictor of your payout.
Buyers rely on the resale market to set prices, and those numbers are always lower than retail replacement values. That’s why it’s important to work with a buyer who explains the difference up front and shows you how they arrived at their offer.
Tips Before Selling a Diamond
If you’re thinking about selling, a few steps can help you maximize your return:
Bring certification if you have it. A GIA or IGI certificate makes your diamond more marketable.
Don’t over-clean. Avoid harsh polishing that could harm the stone or setting.
Shop around. Get multiple offers and make sure each buyer explains their calculation clearly.
Know the market. Diamond prices fluctuate just like gold and silver — timing can impact your payout.
Why Work With American Gold & Diamond Buyers
At American Gold & Diamond Buyers, we’ve been helping customers sell their diamonds for decades. We take the time to explain the difference between appraisal and resale value so you know exactly what to expect.
Here’s how we make the process transparent and fair:
We base offers on current resale market demand.
We evaluate diamonds using the 4Cs and certification status.
We test and appraise items in front of you.
We explain our pricing breakdown clearly — no games, no pressure.
Final Thoughts
Diamond appraisals serve an important role in insurance, but when it’s time to sell, what matters is the resale market. By understanding the difference between appraisal value and resale value, you’ll walk into the process informed, confident, and ready to make the best decision for you.
If you’re ready to find out what your diamond is really worth, bring it to American Gold & Diamond Buyers for a free evaluation. You’ll leave knowing exactly how we arrived at your offer — and with the confidence that it was fair.