Birthstones · April
The April Birthstone: Diamond
The April birthstone is diamond — the hardest and most enduring of gems, and the timeless symbol of love. Here is what it means, how the 4Cs and antique cuts shape value, and where to find antique diamond jewellery.
- Diamond is the birthstone for April and the gem of the 10th and 60th wedding anniversaries.
- It is pure crystallised carbon and the hardest natural material — 10 on the Mohs scale.
- Value follows the 4Cs — colour, clarity, cut and carat (ct) — and antique cuts such as old mine, old European and rose carry their own appeal.
- Explore antique diamond jewellery and diamond engagement rings at Mozeris.
What is the April birthstone?
The April birthstone is the diamond, pure carbon crystallised under immense heat and pressure. At 10 on the Mohs scale it is the hardest natural material, which is why diamonds have survived, brilliant and unscratched, in jewellery centuries old.
Diamond is also the gem traditionally given for the 10th and 60th wedding anniversaries — fittingly, given its association with permanence and enduring love.
Meaning & history
Diamond has long symbolised strength, invincibility and eternal love — which is why it became, and remains, the classic engagement stone. In antique jewellery, diamonds were cut by hand into forms quite different from the modern brilliant: the chunky old mine and old European cuts and the flat, romantic rose cut.
These antique cuts glow rather than glitter, and are increasingly sought-after for their character.
What gives Diamond its value
Diamonds are judged by the 4Cs — colour, clarity, cut and carat — but with antique stones the cut and character matter as much as a modern grade.
| Factor | What to look for |
|---|---|
| Colour | Graded from colourless (most valued) down to tinted; warm antique stones have their own charm. |
| Clarity | Fewer inclusions raise value; many antique stones are eye-clean to the wearer. |
| Cut | Modern brilliance is one ideal; antique old mine, old European and rose cuts are prized for character. |
| Carat (ct) | Larger stones rise sharply in price per carat, all else equal. |
| Cut style & era | An original antique cut in a period mount carries collector appeal beyond the 4Cs alone. |
The antique premium
With antique diamond jewellery the cut and the setting are part of the value. An original old-cut diamond in a Georgian, Victorian or Art Deco mount, with intact hallmarks, can be worth far more than a recut modern stone of the same weight.
Explore Antique Diamond Jewellery
A curated collection of antique and vintage diamond rings, necklaces and earrings.
Antique Diamond jewellery at Mozeris
Diamond is the foundation of fine antique jewellery. Across our collection you will find it in:
- Diamond engagement rings — including solitaire and three-stone designs.
- Old-cut diamond jewellery and rose-cut diamond rings — antique cuts with real character.
- Diamond necklaces, brooches and earrings — Georgian through to mid-century.
Prefer to browse more widely? See our full antique gemstone jewellery and antique rings collections.
Choosing & styling
Antique diamonds suit every metal. Cool platinum and white gold sharpen their brilliance, while warm yellow gold flatters the soft glow of old cuts. A solitaire is the purest statement; a cluster or three-stone ring adds presence.
For a period look, pair antique diamonds with the geometry of Art Deco or the romance of Victorian design.
Frequently asked questions
The April birthstone is diamond — pure crystallised carbon and the hardest natural material, at 10 on the Mohs scale.
Diamond symbolises strength, invincibility and eternal love, which is why it remains the classic engagement stone.
The 4Cs — colour, clarity, cut and carat (ct) — set the base, but with antique stones the cut style (old mine, old European, rose) and the period setting add their own value.
Yes. We offer a curated collection of antique and vintage diamond engagement rings, old-cut diamond jewellery and more. Browse online and make an enquiry to view or purchase.
April's Enduring Brilliance
Discover antique and vintage diamond jewellery, chosen for cut, character and craftsmanship.