Natural and untreated gemstones for your custom jewellery
Amethyst Gemstones for sale

Behind of MdMaya Gems there is a big passion: Gemology.

My name is Lola and I'm the owner of this store, when I started to trade in the colored gemstone, I soon realized that I needed to acquire knowledge, afterwards, I began to study Gemology. I studied the two years of Gemology in the University of Barcelona, ​​Spain, the Diamond Specialist Course and the Specialty of Synthetic and Treated Gems.

For me the Gemology and the Gemstones mean PASSION.On this web you can find Gems and Jewels, information about Gemstones, Birthstones, what is an inclusion (photo gallery and some explanation), and why the inclusions are so important to gemologists; latest news, the best links for us, most interesting websites, forums, etc.

I hope you like it!

Birthstones by Month

Birthstones By Month. Each month of the year is associated with a certain gem, like the signs of the zodiac, anniversaries, etc. The correspondence of a particular stone with a certain month has been changing over time, although the use of gemstones as an amulet or lucky stone is still frequent even today. 

 Discover your Birthstone

September Birthstone: Sapphire

Untreated oval blue sapphire 1.01 ct. with certificate. This little more than a carat beauty is extremely beautiful. Its blue color is mesmerizing. Its origin is Sri Lanka. It will look perfect on your personalized jewelry.
Untreated oval blue sapphire 1.01 ct. with certificate. This little more than a carat beauty is extremely beautiful. Its blue color is mesmerizing. Its origin is Sri Lanka. It will look perfect on your personalized jewelry.
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Untreated oval blue sapphire 1.01 ct with certificate
$1,540.00 $2,200.00

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Untreated indigo blue sapphire 1.52, oval cut, certificate included. This dark blue sapphire shows two shades of blue, one more vivid in the center of the gem and darker at the ends, its behavior under light is good, both in incandescent light and under natural light, it is a dark blue sapphire full of sparkles and life. Its elongated oval cut will be very beautiful in any piece of jewelry. This sapphire is ideal for those looking for untreated gemstones of any kind at a good price.
Untreated indigo blue sapphire 1.52, oval cut, certificate included. This dark blue sapphire shows two shades of blue, one more vivid in the center of the gem and darker at the ends, its behavior under light is good, both in incandescent light and under natural light, it is a dark blue sapphire full of sparkles and life. Its elongated oval cut will be very beautiful in any piece of jewelry. This sapphire is ideal for those looking for untreated gemstones of any kind at a good price.
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Untreated indigo blue sapphire 1.52 ct oval with certificate
$1,020.00

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Blue Sapphire 1.16 ct oval cut. Beautiful untreated blue sapphire. This little one of just over one carat shows a pretty blue color. It has an elongated blue cut that is not perfect, since its culet is somewhat displaced, but we have to bear in mind that it is difficult to find rough material without treating it, so it is takes full advantage of it. A small miracle of nature at an irresistible price, it will look amazing on any piece of jewelry.
Blue Sapphire 1.16 ct oval cut. Beautiful untreated blue sapphire. This little one of just over one carat shows a pretty blue color. It has an elongated blue cut that is not perfect, since its culet is somewhat displaced, but we have to bear in mind that it is difficult to find rough material without treating it, so it is takes full advantage of it. A small miracle of nature at an irresistible price, it will look amazing on any piece of jewelry.
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Blue Sapphire 1.16 ct oval cut.
$910.00

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Untreated dark greenish blue sapphire 1.75 ct. Oval cut. Amazing dark greenish blue sapphire with a good behavior under any type of light. It has a good size, and it will look perfect on your personalized jewelry, either in a ring or a pendant. It has some inclusions that although they are visible from some angles, they do not affect its beautiful at all. This amazing sapphire is ideal for those who look for precious stones without treatment of any kind.
Untreated dark greenish blue sapphire 1.75 ct. Oval cut. Amazing dark greenish blue sapphire with a good behavior under any type of light. It has a good size, and it will look perfect on your personalized jewelry, either in a ring or a pendant. It has some inclusions that although they are visible from some angles, they do not affect its beautiful at all. This amazing sapphire is ideal for those who look for precious stones without treatment of any kind.
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Untreated Dark Greenish Blue Sapphire 1.75 ct with certificate.
$850.00

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Untreated greenish blue Sapphire 3.61 ct. Cushion cut. natural untreated blue sapphire has a large green component inside, under natural light you can see a dull and translucent blue sapphire, although under incandescent light everything changes, this sapphire shines from all sides and a bright green color is seen throughout the interior. It is a gem only for the very daring, with an extra: its price (certificate included).
Untreated greenish blue Sapphire 3.61 ct. Cushion cut. natural untreated blue sapphire has a large green component inside, under natural light you can see a dull and translucent blue sapphire, although under incandescent light everything changes, this sapphire shines from all sides and a bright green color is seen throughout the interior. It is a gem only for the very daring, with an extra: its price (certificate included).
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Untreated greenish blue Sapphire 3.61 ct Cushion cut
$430.00

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Untreated Greenish Blue Sapphire 1.79 ct, oval cut with certificate. This greenish-blue sapphire has a very good behavior under any type of light, whether under incandescent or natural light. It has a cloudy zone, which can be seen in the photos, although it is really very beautiful gemstone, it has a very good size for a ring or any piece of jewelry. A great untreated blue sapphire at an affordable price.