Prodiam guides & journal
Diamond and jewellery guides
Understand your options before choosing a diamond, ordering a ring or comparing a quote. Browse advice by topic, or read the latest journal articles below.
Buying a diamond
How to buy a diamond
A practical starting point for choosing a stone and comparing your options.
Your first diamond
Understand the decisions before choosing your first stone.
Where to buy diamonds
Compare the different routes to buying a diamond.
Buying online or in person
Questions to ask about viewing, delivery and buying remotely.
Compare diamond quotes
Compare specifications and the complete price.
Buying from a cutter or jeweller
Understand the differences between suppliers.
Grading and diamond knowledge
Carat weight
Understand weight and its relationship to price.
Diamond colour
Read colour grades and compare your options.
Diamond clarity
Understand inclusions and clarity grades.
Diamond cut
Learn how cut affects appearance.
GIA and EGL reports
Understand the laboratory behind a grading report.
Verify a diamond
Checks to discuss before buying a stone.
Natural and lab-grown diamonds
Compare origins and practical buying considerations.
Cubic zirconia and diamond
Understand the difference between a diamond and a simulant.
Rings and jewellery advice
Value and the diamond market
Diamond price trends
How market prices and exchange rates affect comparisons.
Diamonds as an investment
Consider resale and investment claims carefully.
Lab-grown diamond resale value
Understand the difference between purchase and resale prices.
Are diamonds overpriced?
Explore pricing and how to compare offers.
Latest journal articles
Explore the diamond news and market brief, or start with our natural diamonds overview.
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Rings and customs
Which finger does a wedding ring go on?
Left hand or right, which finger, and what happens to the engagement ring on the day?
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Anniversaries
The 10th anniversary gift is tin. It is also diamond. Both are correct.
Is the tenth anniversary tin or diamond, and what does a tenth-anniversary diamond cost in rands?
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Reference
Birthstones by month
What is the birthstone for each month, and how old is the list really?