Diamonds vs Gold: Which One Fits Your Portfolio?
Should you hold diamonds instead of, or next to, gold? This comparison sets out the facts.
Key takeaways
- Liquidity of diamonds: low.
- Income: none.
- Main advantage: global grading standards (the 4Cs).
- Main drawback: lab-grown diamonds weigh on prices.
Diamonds and gold compared
This comparison covers the points that matter to a long-term holder.
| Criterion | Diamonds | Gold |
|---|---|---|
| Liquidity | Low | Very high |
| Storage | Very compact | Compact |
| Price transparency | Low to medium: wholesale price lists are not public | Live spot price |
| Income | None | None |
| Volatility | Prices of natural diamonds have been under pressure from lab-grown stones | Moderate |
| Main costs | Large retail margins | Premiums and storage |
The comparison shows that diamonds is a complement to gold more than a replacement.
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.
Advantages of diamonds
Holders of diamonds usually point to these strengths.
- Global grading standards (the 4Cs)
- Very compact
These strengths matter most for investors who can accept the drawbacks below.
How diamonds is bought and held
Diamonds are graded on the 4Cs by laboratories such as GIA. Investment purchases are loose, certified stones; jewellery carries large retail margins that rarely come back on resale.
Diamonds and gold in a crisis
The growth of lab-grown diamonds has pressured prices of many natural stones, especially in common sizes and qualities. Rare colours and large fine stones are less affected.
Drawbacks of diamonds
These limits should be weighed before buying.
- Lab-grown diamonds weigh on prices
- Retail margins are high
- Resale below purchase price is common
In short, diamonds suits buyers who value the stone itself more than its resale value.
Frequently asked questions
Is diamonds a good alternative to gold?
It can be, for buyers who value the stone itself more than its resale value. It is not a full substitute, because gold is more liquid.
What are the main risks of diamonds?
Lab-grown diamonds weigh on prices; retail margins are high; resale below purchase price is common.
Does diamonds pay income?
No. Like gold, it pays no income.
What about coloured gemstones?
They are another tangible alternative, with very high value density. Specialists such as Flawless Group sell certified stones with insured storage.
Considering a tangible asset next to gold? Ask our team about certified gemstones.
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.