AU Crystals
Month 07

July birthstone, Ruby.

Traditional pairing: Ruby. Zodiac signs: Cancer, Leo.

July birthstone meaning

The July birthstone is ruby, the deep red corundum that has stood as the stone of vitality, courage, and protective passion across nearly every culture that has had access to it. July is the heat of summer in the Northern Hemisphere, and ruby sits with that exactly. The stone is traditionally associated with the heart, with leadership, and with the kind of confidence that does not need to perform. For more accessible alternatives, carnelian and red garnet share the warm-red colour family at a fraction of the cost.

History and mineralogy

Ruby has been mined in Burma, now Myanmar, for at least two thousand years, with the famous Mogok valley producing stones described in the trade as pigeon-blood red, the gold standard for the species. Sri Lanka, Thailand, and more recently Mozambique have all become significant sources. The mineralogy is corundum, aluminium oxide, the same species as sapphire, with the red colour coming from trace chromium. Ruby and sapphire are mineralogically the same stone, separated only by colour, with red varieties called ruby and all other colours called sapphire.

July birthstone as a gift

Ruby is among the most expensive coloured stones at fine quality, with treated and lower-grade material being far more accessible. For a meaningful July gift on a smaller budget, carnelian rings or pendants carry similar warm-red symbolism without the premium of corundum, and red garnet offers a more affordable hard stone in the same colour family.

Alternative July birthstones

If Ruby is not the right fit, the most common alternative July birthstones are Carnelian, Red Garnet. Each carries a related but distinct tradition. The colour family stays close, with most of these stones sitting in the blood red or pigeon blood or crimson range.

A few honest questions about July birthstones

What is the difference between ruby and red spinel?
Ruby is corundum coloured by chromium. Red spinel is a different mineral that often occurs alongside ruby in the same deposits. Many famous historical rubies, including the Black Prince Ruby in the British Crown Jewels, are now known to be spinel.
Are most rubies treated?
Yes. The majority of commercial ruby is heat-treated to improve colour and clarity, and a smaller portion is treated with lead glass infill to fill fractures. Heat treatment is accepted in the trade. Glass-filled material should be disclosed and is much less durable.

July birthstone pieces in our reference

Looking for a July birthstone piece?

We hand-arrange birthstone pieces through Instagram. Send a note and we will share what we have in studio.

Preview the message
Hi AU Crystals,

I was reading your July birthstone page (aucrystals.com/birthstones/july).

I wanted to ask about a ruby piece.
Copy message and open Instagram

A starter message gets copied to your clipboard. Paste it into the DM on Instagram.