Investment diamonds - a certificate, not a promise
Investment diamonds exclusively with GIA, HRD or IGI reports - verifiable at the source. Concentrated value in the smallest physical form.White or fancy colour?
White diamonds
Colourless stones with investment parameters - valued by the 4Cs, the most liquid market segment.
Buy a white diamond
Coloured diamonds (fancy)
Natural fancy colour diamonds - yellow, pink or blue - are the market's rarest segment, with a valuation scale of their own.
Explore the offerWhy diamonds
Concentrated value
A stone the size of a pea can store the value of a car - mobility no other asset provides.
Natural rarity
The supply of investment-grade stones is geologically limited.
A global market
A certified diamond can be valued and sold on every continent - the report is the international language of valuation.
Verifiability
A GIA, HRD or IGI report number can be checked online in the laboratory's database.
How to buy a diamond
- 01
Talk to an advisor
We define your budget and expectations for the stone - the 4C parameters follow from these.
- 02
Stone selection
We present specific certified stones - each verifiable in the laboratory's database.
- 03
Confirm the terms
The price and settlement method (PLN, and also euro or US dollars for goods available immediately) are known before the transaction.
- 04
Collection with certificate
You collect the stone with its original report and a full set of purchase documents.
Accepted currencies
Pay for a diamond in PLN, or in euro and US dollars for goods available immediately - the rate is confirmed before the transaction.
The 4C standard
Four parameters that determine the value of every diamond - the basis of international valuation.
Carat · Weight
The stone's weight in carats (1 ct = 0.2 g). Prices grow non-linearly - stones above weight thresholds earn a premium.
approximate diameters for a round brilliant cut
Colour
A scale from D (perfectly colourless) downwards. Investment stones are usually D-H.
D-H · investment range
Clarity
The number and visibility of inclusions - from FL (flawless) to I3. The investment segment is typically FL-VS.
FL-VS2 · investment range
Cut
The quality of proportions and finish determines the stone's brilliance. For investment, Excellent or Very Good counts.
Excellent-Very Good · investment range
Certificates and origin
The world's most recognised gemmological laboratory - creator of the 4C scale. A GIA report is the international standard of diamond valuation.
Verify a reportSelect a laboratory to see details and the report verification link.
- Every stone with a report verifiable online
- Investment stones are natural only
- Origin compliant with the Kimberley Process
- Full transaction documentation for resale
Kimberley Process
All stones come from legal sources covered by the Kimberley Process certification scheme, which excludes so-called conflict diamonds from trade.
Antwerp diamond exchange
We source stones directly from the Antwerp diamond exchange - the world's centre of certified diamond trading. Every stone reaches us with full laboratory documentation.
A diamond without a certificate is just a stone. That's why MS Trade - partner of Mennica Skarbowa - offers exclusively diamonds with GIA, HRD or IGI reports - each one you can verify yourself in the laboratory's database before deciding.
Mennica Skarbowa Vault
Prefer not to store metals at home? Deposit them in Mennica Skarbowa's professional vault - insured and fully discreet.
Diamonds FAQ
How much does a diamond investment start at?
Investment-grade stones usually start at over a dozen thousand złoty. An advisor will match a stone to your budget.
Which currencies can I pay with?
We accept payment in: PLN, EUR, USD. Euro and US dollars only for goods available immediately. The conversion rate is confirmed before the transaction.
How do I check a certificate's authenticity?
Every GIA, HRD and IGI report has a number you can verify free of charge in the laboratory's online database - the links are on this page.
Are lab-grown diamonds an investment too?
Mennica Skarbowa's offer also includes lab-grown (synthetic) diamonds. As a store of value they behave differently from natural stones, because their supply is not geologically limited. That is why the stones presented here as investment grade are natural only, with GIA, HRD or IGI reports.
How do I sell a diamond in the future?
A certified stone with complete documents can be sold through a dealer, an auction house or with our help - the 4C report is the basis of valuation worldwide.
Let's talk diamonds
An advisor will match a stone to your budget and goal - discreetly and with no obligations.A call with an advisor is commercial support in choosing a product from our range (form, weight, 4C parameters). It does not constitute investment advice, an investment recommendation or a suitability assessment within the meaning of financial-instrument regulations - you make the decision yourself.