Every natural stone is born at a precise point on the planet and arrives to us carrying its own geological history. For centuries, different cultures linked these stones to the months of the calendar and to the signs of the zodiac, weaving a symbolic language that still lives on in designer jewelry today. This guide brings together both traditions — the birthstone and the zodiac stone — along with the properties that accompany each gem in our workshop in Cordoba.
Note: the meanings and affinities below belong to the popular, symbolic tradition of gemology, passed down through generations. They are presented as part of each natural stone's cultural heritage, not as scientific claims.
Table of contents
- Natural stones by birth month
- Natural stones by zodiac sign
- How to choose your stone
- Frequently asked questions
Natural stones from our workshop
Natural stones by birth month
The tradition of assigning a natural stone to each month of the year dates back to the list adopted by gemologists and jewelers in the early twentieth century, which itself draws on much older customs. Here is the natural stone associated with your birth month, along with the collection where you can explore it.
| Month | Natural stone | Explore |
| January | Garnet | Garnet collection |
| February | Amethyst | Amethyst collection |
| March | Aquamarine (or bloodstone, in the older tradition) | Jasper collection |
| April | Diamond | Diamond collection |
| May | Emerald | Emerald collection |
| June | Pearl or moonstone | Shop all stones |
| July | Ruby | Ruby collection |
| August | Peridot | Peridot collection |
| September | Sapphire | Sapphire collection |
| October | Opal or tourmaline | Welo opal collection · Tourmaline collection |
| November | Topaz or citrine | Topaz collection · Citrine collection |
| December | Tanzanite or turquoise | Tanzanite collection |
Natural stones by zodiac sign
Beyond the birth month, each zodiac sign was traditionally linked to specific natural stones. These are the affinities that accompany Rocas & Cristales pieces, exactly as described on each of our product pages.
| Sign | Affinity natural stones |
| Aries | Bloodstone jasper, amethyst, ruby |
| Taurus | Emerald |
| Gemini | Emerald |
| Cancer | Moonstone, pearl |
| Leo | Ruby, garnet, topaz |
| Virgo | Garnet, peridot, amethyst |
| Libra | Peridot, black opal, tourmaline, morganite |
| Scorpio | Ruby, spectrolite, black opal |
| Sagittarius | Tanzanite, spectrolite, amethyst |
| Capricorn | Garnet, Welo opal, tourmaline, amethyst |
| Aquarius | Amethyst, garnet |
| Pisces | Amethyst, sapphire, spectrolite, morganite, Welo opal |
On amethyst and Pisces: born in the geodes of Brazil and Uruguay, amethyst carries the legend of Amethystos, the maiden protected by the goddess Artemis, whose form Dionysus's wine forever stained violet. Traditionally regarded as a natural tranquilizer, it is said to calm the mind and awaken intuition.
On ruby and Scorpio: called "ratnaraj" in Sanskrit — the lord of gems — ruby has stood as a symbol of passion and royalty for centuries. Gemological tradition links it to vitality, courage, and passionate love.
How to choose your stone
Some people prefer the stone tied to their birth month; others favor the one linked to their sun sign; many simply choose the one that moves them at first sight. At Rocas & Cristales there is no single correct way to choose: we invite you to explore both traditions as a starting point, and to let the natural stone that resonates with you decide. If you'd like personalized guidance, reach us on WhatsApp or through our contact page for complimentary advice.
Frequently asked questions
What is a birthstone?
It's the natural stone that gemological tradition assigned to each month of the calendar, a custom popularized in the early twentieth century that remains part of designer jewelry today.
Is a birthstone the same as a zodiac stone?
Not necessarily. A birthstone follows the solar calendar, while a zodiac stone follows the astrological sign. Both traditions coexist, and in several cases point to the same natural stone.
Can I wear a stone that doesn't match my month or sign?
Of course. These associations are a symbolic tradition, not a rule. At Rocas & Cristales, we believe the right natural stone is, above all, the one that moves you.
How do I choose the right stone for a gift?
You can go by the recipient's birth month or zodiac sign, their favorite color, or reach out for complimentary, personalized advice on WhatsApp.
Are Rocas & Cristales stones 100% natural?
Yes. We work exclusively with genuine natural stones — no imitations, no glass, no resin — each individually selected in our workshop in Cordoba, Argentina.
Discover the piece that represents you in our full natural stone jewelry collection.
