Birthstones · March
The March Birthstone: Aquamarine
The March birthstone is aquamarine — the clear sea-blue gem that defined the cool elegance of Art Deco jewellery. Here is what it means, what makes one aquamarine finer than another, and where to find antique aquamarine jewellery.
- Aquamarine is the birthstone for March and the gem of the 19th wedding anniversary.
- It is the blue variety of beryl — the same mineral family as emerald.
- Value is led by colour, then clarity, cut and carat (ct) weight; a pure, deeper sky-blue is most prized.
- Explore antique aquamarine and gemstone jewellery and antique rings at Mozeris.
What is the March birthstone?
The March birthstone is the aquamarine, the sea-blue variety of beryl and a sister stone to emerald. Its name comes from the Latin for sea water, and the finest stones show a pure, slightly deeper blue with great clarity.
Aquamarine is traditionally given for a 19th wedding anniversary. Often found in large, very clean crystals, it was perfect for the bold geometric settings of the Art Deco period.
Meaning & history
Aquamarine has long been linked with the sea, calm and safe passage — sailors carried it as a talisman against the perils of travel. By the Edwardian and Art Deco eras its clear, cool blue made it a favourite for elegant cocktail rings, brooches and pendants.
Because fine aquamarine occurs in large clean stones, antique pieces often show off generous, beautifully cut gems.
What gives Aquamarine its value
Aquamarine is judged chiefly on colour and clarity: depth of blue sets fine stones apart, and the best are beautifully clean.
| Factor | What to look for |
|---|---|
| Colour | A pure, deeper sky-blue is most prized; very pale or greenish stones are worth less. |
| Clarity | Fine aquamarine is typically eye-clean; visible inclusions reduce value. |
| Cut | A good cut deepens the blue; antique and emerald cuts suit the stone well. |
| Carat (ct) | Large clean stones are available, so fine colour matters more than size alone. |
| Era & workmanship | An antique stone in a fine Art Deco or Edwardian mount adds collector appeal. |
The antique premium
With antique aquamarine jewellery the setting often makes the piece. A fine Art Deco or Edwardian mount with intact hallmarks can lift value well beyond the stone alone.
Explore Antique Aquamarine Jewellery
A curated collection of antique and vintage aquamarine rings, brooches and necklaces.
Antique Aquamarine jewellery at Mozeris
Aquamarine suits cool, elegant antique jewellery. Across our collection you will find it in:
- Antique rings — cocktail, cluster and Art Deco designs.
- Brooches and earrings set with blue aquamarine and diamonds.
- Necklaces and pendants — Edwardian through to mid-century.
Browse the full antique gemstone jewellery collection to explore by stone.
Choosing & styling
Aquamarine's cool blue is sharpened by platinum and white gold, and warmed by yellow gold. A large aquamarine cocktail ring makes an elegant statement, while aquamarine earrings or a pendant add a clear note of colour.
For a period look, pair aquamarine with the geometry of Art Deco design or explore antique gemstone jewellery more widely.
Frequently asked questions
The March birthstone is aquamarine, the sea-blue variety of the mineral beryl, a sister stone to emerald.
Aquamarine is linked with the sea, calm and safe passage, and was carried by sailors as a protective talisman.
Colour matters most — a pure, deeper sky-blue is finest — followed by clarity, cut and carat (ct) weight.
Yes. We offer antique and vintage aquamarine pieces across our antique gemstone jewellery and antique rings collections. Browse online and make an enquiry to view or purchase.
March's Sea Blue
Discover antique and vintage aquamarine jewellery, chosen for colour, character and craftsmanship.