Precious stones are also known as gemstones. is a piece of attractive mineral, which - when cut and polished - is used to make jewelry or other adornments. However certain rocks, (such as lapis-lazuli) and organic materials (such as amber or jet) are not minerals, but are still used for jewelry, and are therefore often considered to be gemstones as well.

Gemstones have several uses. They are used to make jewelry and some people believe that they also have medicinal properties. Well gem stones make perfect gifts, so if you don't know what stone to gift there is a simple way of deciding. To make life simpler, gem stones have been categorized according to the birth stone (month of birth), the star sign, and the planet. If you are still confused, you can opt to gift your loved one a Navratna- 9 stones in one. Navratna are available in pendants as well as rings.

According to the birth stone the gem stones are categorized as follows-

January - Gamet, Emerald, Rose Quartz

February- Amethyst, Bloodstone, Onyx, Moonstone

March- Aquamarine, Bloodstone, Jade, Rock Crystal

April- Diamond, Opal, Quartz, White Sapphire

May - Emerald, Sapphire, Agate, Beryl

June- Pearl, Moonstone, Alexandrite, Opal

July - Ruby, Carnelian

August- Peridot, Sardonyx, Diamond, Sapphire, Jade

September- Sapphire, Agate, Moonstone, Lapis Lazuli, Pink Tourmaline, Diamond

October- Opal, Tourmaline, Jasper, Opal, Pink Tourmaline, Zircon, Aquamarine

November- Yellow Topaz, Citrine, Pearl, Topaz, Diamond

December- Blue Topaz, Turquoise, Zircon, Lapis Lazuli, Black Onyx, Ruby

According to the Star Signs the gem stones are categorized as follows:

Taurus- Golden Topaz, Yellow Coral, Emerald

Gemini- Pearl

Cancer- Red Coral

Leo- Emerald and Green Jade

Virgo- Yellow Sapphire

Libra- Diamond

Scorpio- Blue Sapphire

Sagittarius- Amethyst

Capricorn- Smoky Quartz, Beryl

Aquarius- Blue Sapphire

Pisces- Diamond, Jade, Aquamarine

Aries- Ruby, Bloodstone

According to the planets the gemstones are categorized as follows:

Sun- Ruby

Moon- Pearl

Mars- Red Coral

Mercury- Emerald and Green Jade

Jupiter- Yellow Sapphire

Venus- Diamond

Saturn- Blue Sapphire

The Navratna is said to have astrological benefits. Each of the nine stones has a different importance. The nine stones are:

Ruby- for charisma, ruling powers, energy, removing negative egoism

Diamond- for prosperity, wealth, artistic talent, personality and the power of attracting others

Emerald- for higher education, memory, alertness, gift of speaking well, improving career and financial status

Yellow Sapphire/ Topaz- for wealth, prosperity, curing diseases like- diarrhea, ulcer, jaundice, heart troubles and impotency

Hessonite- cure the ill effects of rahu, for infections, cold and bronchitis

Cat's Eye- cures the evil effects of Ketu and bestows from racing, stock and speculation

Sapphire- for longetivity, co-operation from co workers, effective working and to protect against the effects of Ezhra Sani

Coral- for purity of blood, to be a sumangali for long, for bravery, smartness and improving material happiness

Pearl- for peace of mind, blessings of parents, improving imaginative and analytical skills and to sleep peacefully

What ever the reason, the gemstones are a perfect way to express love. If for no other reason, you can gift gemstones even for the simple reason that they are beautiful.