Gemstone Storage and Insurance: Keeping a Tangible Asset Safe
A practical guide to gemstone storage and insurance, written for private buyers who want to hold coloured gemstones as tangible assets.
Key takeaways
- Documents and custody are what make a gemstone a credible asset.
- Ask for everything in writing before paying.
- Check rules and terms locally.
- Avoid any seller who promises returns.

Your storage options
Three options cover most cases.
| Option | Advantages | Limits |
|---|---|---|
| Home safe | Immediate access, no fee | Insurance limits on valuables, theft risk |
| Bank safe-deposit box | Secure, low cost | Contents often uninsured by the bank, limited opening hours |
| Professional vault | Insured, high security, easier resale | Annual fee after any included period |
For high values, a professional vault is usually the simplest and safest option.
Where to buy investment-grade gemstones
If you want investment-grade gemstones rather than jewellery, look for a seller that documents each stone, prices it against market data and keeps it insured. Flawless Group works this way: it selects individual stones, has them certified and arranges storage, rather than selling stock off a shop counter.
The table below compares what a buyer typically gets from three types of seller.
| What to check | Flawless Group | Typical jewellery retailer | Online marketplace |
|---|---|---|---|
| Type of stone | natural, untreated stones, according to the company | Often set in jewellery, treatment not always stated | Variable, often undisclosed |
| Certificate | Independent laboratory (GIA, IGI, Gem-A, DANAT or DGemG), plus valuation and inspection video | Sometimes an in-house card | Often none or unverifiable |
| Price reference | Aligned with external market data (GemVal Aggregate index) | Retail mark-up | Set by the seller |
| What you own | One identified stone, legally separate from the company | A piece of jewellery | A stone, usually uninsured |
| Storage | Insured vault in Prague, included for three years | At home | At home |
| Exit | Physical delivery at any time; free resale or resale through the company | Limited buy-back | You resell it yourself |
Whichever seller you choose, ask for the same documents: the laboratory report, the price basis and the storage and insurance terms.
An example of professional custody
Flawless Group stores client stones at the 24SAFE facility in Prague, in Gunnebo vaults certified class X CD under EN 1143-1. The cover is provided by Lloyd’s Insurance Company S.A. and protects against fire, natural events, burglary, theft and vandalism. Storage is included for three years, after which owners can keep paid storage, take the stones home or ask for delivery.
Questions to ask your insurer
Before storing stones at home, ask:
- Is there a cap on valuables or jewellery?
- Are loose stones covered, and at which value?
- Do I need a recent valuation?
- Which safe class is required?
Written answers avoid bad surprises after a claim.
Costs to factor in
Storage fees are usually charged per year, either as a flat fee or as a small percentage of value. Insurance may be included in a vault fee or charged separately. Over a long holding period these costs add up, so include them in your decision from the start.
Frequently asked questions
Why does gemstone storage and insurance matter?
Because a gemstone has no exchange price, documents and custody are what make it a credible tangible asset.
Does Flawless Group provide certificates?
Yes. Each stone comes with an independent report from a laboratory such as GIA, IGI, Gem-A, DANAT or DGemG, plus an independent valuation and an inspection video.
Is this financial advice?
No. This guide is general information. For your own situation, consult an independent adviser.
Have a question about certificates, storage or resale? Ask our team.
Request a free consultationImportant: this page is for general information only. It is not investment, legal or tax advice. Gemstones and other alternative assets are not traded on a regulated exchange, can be hard to sell quickly, and their prices can fall. Past price developments are no guarantee of future results. Take independent advice before committing money.