How to evaluate the condition of a postage stamp?

For philatelists, each stamp in a collection has special value and its own history related to its appearance in the album: rare ones that are many years old and had to be hunted for a long time, or brand new ones. The market value of stamps and their investment value depend not only on their rarity or theme, but primarily on their condition. To an outside observer, two stamps that look the same will seem identical, but to a professional collector, the difference between them can be measured in thousands of hryvnias. The condition of a stamp will affect how much it will cost: a few hryvnias or a few thousand. Therefore, the ability to assess the condition of a postage stamp is a critically important skill that distinguishes an amateur from a serious philatelist and a successful investor.

So let's find out how to determine the condition of a postage stamp yourself and avoid common mistakes, what international criteria and standards to use to identify the condition of miniatures, and where to get an expert evaluation. We hope that our practical advice will be useful and that you will see that you can always buy genuine stamps in perfect condition, rather than fakes, from a trusted and reliable seller — and build flawless collections. 

International grading of postage stamps

In philately, there is an established system for evaluating the condition of postage stamps, which is based on American (PSE, PSAG) and European standards. In Europe, the most popular condition ratings are Lux, XF, VF, and F. These standards are used by auctions, catalogs, and expert commissions around the world.

The most common international scale for grading stamps (Grading)

What is evaluated when determining the condition of postage stamps

The condition of a postage stamp determines its aesthetic appeal, historical value, and, most importantly, its market value.

To conduct the most complete assessment of a stamp's condition, attention is paid to the following key parameters:

• paper quality and color — you should be wary of stains, thinning, creases, loss of color brightness or darkening, and microcracks.
• For modern art stamps, such as wartime postal issues, color brightness is a hallmark;
• preservation of the adhesive layer (for unstamped postage stamps) — the highest value in Never Hinged stamps, i.e., those that have never been affixed;
• assessment of the stamp's perforation — the perforations (teeth) must be complete, of equal length, and without breaks.Short and uneven perforations may indicate careless separation of the stamp from the sheet, which significantly reduces its value;
• accuracy of image centering (centering) — the position of the image relative to the perforation. Ideally, the margins on all four sides of the postage stamp should be of equal width. Even if the stamp is brand new, poor centering can reduce its price by at least half.

Tip for beginners. Start your collection with modern postage stamps from Ukrposhta — they can be purchased from the official online store in Never Hinged condition with perfect centering and perforation.

For unused postage stamps, the condition of the gum layer (Gum condition) is decisive. The same stamp with perfectly preserved gum can cost 40-300% more than its counterpart with traces of sticking. The following commonly accepted terms are used to describe the condition of the adhesive layer:

• MNH (Mint Never Hinged) — a clean postage stamp with original adhesive, without traces of sticking or damage. Never Hinged is the standard for new Ukrainian stamps, but for earlier postal issues, it is a rarity that can significantly affect the cost.
• MH (Mint Hinged) — a postage stamp with original gum, but with traces of sticking in the album.
• OG (Original Gum) — an art stamp with original gum and minor defects (small spots, yellowing, etc.);
• MNG (Mint No Gum) — a clean postage stamp that has lost its adhesive layer for some reason;
• RG (Regummed) — a postage stamp with a restored adhesive coating (this reduces the collectible value of the item).

For cancelled postage stamps, the stamp is also taken into account:

• “light” cancellation (preferable), which does not cover the main part of the image, with clear impressions of the date and place of the event;
• “dirty,” smudged, greasy cancellation with excess stamp ink (reduces the philatelic value of the postage stamp).

How to assess the condition of a stamp yourself

For beginners, buying postage stamps is often a risky business: trusting sellers at their word, buying “by eye,” lacking the basic tools and knowledge to assess the condition of the items. And every mistake can cost money, time, and bring a lot of disappointment. To protect yourself, avoid overpaying, and enjoy your new collectibles, buy art stamps from trusted sellers and official philatelic shops. Ukrposhta Market guarantees high-quality stamps without overpaying, which are properly stored and shipped in appropriate packaging.

If you decide to purchase a postage stamp you have long dreamed of for your collection from an unfamiliar seller, use these practical tips to assess its condition and determine whether it is a good purchase.

1. Examine the postage stamp in the light. To do this, place the stamp on a black surface and then hold it up to a light source. This will help you detect signs of repair and “thin spots” — areas where the paper has become thinner.

Use the right lighting — bright but not direct sunlight. Even better — a lamp with a daylight spectrum.

2. Assess the centering and measure the tooth spacing. Check that the fields are visually uniform on all sides. To evaluate the perforation, use a special device — a perforation gauge — it will help you make sure that the stamp has not been cut to imitate better centering.

3. Check the integrity of the paper. Use a magnifying glass with 10x magnification. Pay attention to the corners and edges to check for microcracks.

4. Take a good look at the gum (reverse). On Never Hinged stamps, the gum should be even, without fingerprints or foreign particles.

5. Compare the stamp with reference images in special catalogs. These can be printed and electronic international or Ukrainian catalogs: Michel, Scott, official catalogs of Ukrposhta, etc.

The process of evaluating postage stamps requires attention and patience; rushing will only do harm here. For convenience, create a basic checklist or use ours to check all parameters.

We recommend keeping your own philatelic documentation in paper or electronic form — if necessary, you can always review your notes on a particular postage stamp.

Basic checklist for assessing the condition of postage stamps

Accessories for proper storage and viewing of postage stamps Even a brand new postage stamp in Lux condition will quickly deteriorate to Good if stored in a regular envelope or between the pages of a book. To preserve the investment value of your collection, it is worth having at least a basic set of accessories and tools:

• philatelic tweezers with flat, rounded tips to avoid damaging the paper and image;
• magnifying glasses — preferably with lighting and 10-20x magnification;
• a perforation gauge for accurately determining the perforation pitch; clean, neutral lighting (daylight spectrum lamp);
• philatelic albums (binders) — choose those with transparent pockets, black pages, and parchment sheets between them.

Important! Never touch the surface of a postage stamp with your fingers. Oil and moisture from the skin cause yellow spots to appear over time, which inevitably spoils the condition of the stamp. Use only special philatelic tweezers. In the official online store of Ukrposhta, you will find the necessary accessories and tools from well-known global brands to keep your collections in perfect condition:

• exclusive albums for postage stamps;
• tweezers;
• magnifying glass.

Every week, the store offers promotional offers with a 20% discount.

How does the condition of a postage stamp affect its price?

As you already understand, the condition of a postage stamp is the most important factor in pricing after rarity. It determines whether the stamp will become an ordinary item in an album or a liquid asset that can be sold profitably even years later. The philatelic market is tough and unsentimental: the same stamp in different conditions is a completely different product.

Beginners often underestimate this factor and make mistakes when buying stamps with hidden defects and nuances in condition: poor centering or perforation, traces of gluing or microdamage invisible to the naked eye. Experienced collectors know that a stamp in perfect condition can cost dozens of times more than even a rare specimen with defects or minor flaws.

This applies not only to old postage stamps with a rich history, but also to modern issues with complex printing technologies. For example, postage stamps with metallized coating or foil are extremely sensitive to microdamage. Even barely noticeable scratches or scuffs on the foil coating can reduce the market value by 70-80%. And it doesn't matter if it was a limited edition or an extremely popular design.

A telling example is a sheet of six postage stamps “Russian warship, go ...!” from the first issue on April 12, 2022. In perfect condition, Never Hinged can fetch over 4,000 hryvnia today, while copies with defects in the perforation, stains, or damaged glue will sell for only a few hundred hryvnia.

Interesting fact. The postal set “Russian warship, go away!” autographed by Roman Gribov, the author of the famous phrase, was sold at a charity auction by Ukrposhta for approximately $116 189 (5 000 000 UAH), which the company donated to the Ukrainian army.

Approximate comparison of cost depending on the condition of postage stamps

Experienced collectors strive to buy postage stamps in perfect condition, because over time their price will only increase and the investment will pay off. Postage stamps in the official Ukrposhta store offer the opportunity to obtain stamps in guaranteed MNH (Lux) condition, without the risk of hidden defects, damaged glue, or questionable origin. Therefore, if you are planning to start a collection or invest in philately consciously, it is worth starting with a verified source.

Read more:

The Most Expensive Stamps and Their Cost

What is Stamp Redemption?

How to Understand the Types of Stamps?

Where to buy postage stamps?

Where can you get an expert appraisal of postage stamps?

Assessing the condition of postage stamps is a skill that comes with experience. However, even experienced philatelists sometimes need the help of certified experts. So if you have doubts about the authenticity of an old stamp or want to find out the true value of an item in your collection, seek professional philatelic expertise in Ukraine.

The condition of a postage stamp is its reputation on the philatelic market. It determines the price, liquidity, and trustworthiness of the collection. Understanding the gradations of stamp condition, paying close attention to details, and using the right tools will protect you from mistakes and financial losses. To collect stamps without compromise, choose quality, verified origin, and a professional approach, and start with the official Ukrposhta store.

The best time to invest in philately is on the day of new issues, because that's when you can buy stamps in perfect condition at face value and even take advantage of the “First Day” stamp and make unique copies of “First Day” envelopes for yourself. To make sure you don't miss out on new postal items from Ukrposhta, purchase an annual philatelic subscription. This will give you priority access to envelopes and cards stamped with the “First Day” stamp, exclusive issues, and numbered postal issues under the “Personalized Stamp” project sets, which are often unavailable to the general public in philatelic stores.

Philately is primarily a long-term investment and a great opportunity to enjoy collecting and enrich your knowledge of the history and culture of countries around the world.