Every month has a birthstone, and every zodiac sign has a stone too. This chart lists the traditional birthstone for each month, then the stone we set at the brightest star of each sign in our zodiac necklaces, so you can find the right gemstone for a birthday gift in a few seconds. To shop by month, start at our birthstones by month page.
Birthstones by month
| Month | Birthstone | Shop at Roho |
|---|---|---|
| January | Garnet | Capricorn zodiac necklace |
| February | Amethyst | February birthstone jewellery |
| March | Aquamarine | Pisces zodiac necklace |
| April | Diamond | April birthstone jewellery |
| May | Emerald | May birthstone jewellery |
| June | Pearl | June birthstone jewellery |
| July | Ruby | July birthstone jewellery |
| August | Peridot | August birthstone jewellery |
| September | Sapphire | September birthstone jewellery |
| October | Opal | Libra zodiac necklace |
| November | Topaz | Scorpio zodiac necklace |
| December | Tanzanite | Sagittarius zodiac necklace |
Zodiac signs and their Roho stones
Each Roho zodiac necklace is a double-sided 925 silver constellation coin. The stars are lab-grown CVD diamonds, clearly labelled, and the brightest star holds the sign's stone, which follows the month in which most of the sign falls. Dates use the tropical zodiac and can shift by a day from year to year.
| Sign | Dates | Roho zodiac stone |
|---|---|---|
| ♑ Capricorn | Dec 22 – Jan 19 | Garnet |
| ♒ Aquarius | Jan 20 – Feb 18 | Amethyst |
| ♓ Pisces | Feb 19 – Mar 20 | Aquamarine |
| ♈ Aries | Mar 21 – Apr 19 | One natural diamond |
| ♉ Taurus | Apr 20 – May 20 | Emerald |
| ♊ Gemini | May 21 – Jun 20 | Genuine freshwater pearl |
| ♋ Cancer | Jun 21 – Jul 22 | Ruby |
| ♌ Leo | Jul 23 – Aug 22 | Peridot |
| ♍ Virgo | Aug 23 – Sep 22 | Blue sapphire |
| ♎ Libra | Sep 23 – Oct 22 | Opal |
| ♏ Scorpio | Oct 23 – Nov 21 | Topaz |
| ♐ Sagittarius | Nov 22 – Dec 21 | Tanzanite |
About our birthstones
Our coloured gemstones are natural and earth-mined, and every treatment is disclosed: sapphires and rubies have standard heat and emeralds minor oil unless a listing says otherwise. The Gemini stone is a genuine freshwater pearl. Any lab-grown diamond is always labelled as lab-grown.
Explore: Birthstones by Month · Zodiac Birthstone Necklaces · Birthstone Bracelets · September Birthstone · May Birthstone · July Birthstone · Loose Gemstones · Charm Bar