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Find Your Ring Size

Royal Coster
Diamonds Size
Internal Diameter / Circumference (mm)​
14,01
14,33
14,65
14,97
15,21
15,61
15,92
16,24
16,56
16,88
17,20
17,52
17,83
18,15
18,47
18,79
19,11

How To Measure

The Hands-on Method​ Measure an Existing Ring
  • 1. Grab a tape measure, length of string or strip of paper.
  • 2. 2. Wrap one of these objects around your finger. Mark the place where the two end of the measuring object come together.
  • 3. When using string or paper grab a ruler. Lay it on a flat surface and measure to where the marked point is.
  • 4. Use the chart presented above to acquire the correct ring size.
The bloodstone gemstone - Royal Coster Diamonds

The bloodstone gemstone

Bloodstone is a gemstone that already arouses interest by only hearing its name. This name was given due to the red spots that the stone usually has. Bloodstone dates back to ancient times and has different meanings to ethnic groups and religions. There are some fascinating effects that this stone is said to carry. We are happy to tell you all about it.

Bloodstone stands for:

  • Protective
  • Grounding
  • Balance
  • Calming
  • Self-control
  • Exciting
  • Sets boundaries
  • Adaptability will be increased
  • Creativity

Origin & History

Originally the name for this stone was heliotrope. Heliotrope comes from the Greek words "helios" (sun) and "tropein" (turning). The stone reflects the color of the setting sun in the water, hence the name. Later, the name bloodstone was given by the red spots that are present in the stone.

Characteristics of the bloodstone

Bloodstone, also called heliotrope, is a green gemstone with red spots. Those red spots are caused by iron oxide. The green color is then in turn caused by trapped chlorite. This stone belongs to the chalcedony family. Heliotrope is a green quartz that can take on different colored spots, but mainly red spots. Yellow, brown, white, or black spots are also possible in some cases.
  • Hardness: 6,5 - 7
  • Sheen: matte
  • Transparency: opaque

Mentally

It is a stone of balance and harmony. It helps make important decisions, provides patience, calms and activates you. Patience, in its own way, also provides self-control. In addition, it sets clear boundaries for you so that you always maintain control.

Physically

The name says it all, it has a detoxifying effect on the blood. It also has a positive effect on various organs, such as the liver, kidneys and intestines. In addition, it has a strengthening effect on the immune system. Due to the high energy load, it is a good stone for rehabilitation and in times of illness, which in turn acts on the immune system. Hay fever could also be remedied by the bloodstone. And finally, it stimulates our blood circulation. Some cultures use crushed bloodstones as painkillers.

Left: bloodstone with a lighter green color and brown spots. Right: bloodstone with lighter green color, yellow and red spots.

Sorts of bloodstones

As mentioned above, the bloodstone can also contain spots other than red, such as yellow, white, brown and black. The intensity of the green color can also vary, as it can fade with exposure to sunlight.

Finding Places

Bloodstones are not rare and its main finding places are Australia, Brazil, Czech Republic, India, China, Russia, and USA. The gemstone are therefore very distributed all over the world!

Bloodstone jewelry

Bloodstone is beautiful and the gemstone is often used in jewelry. This represents a very unique piece of jewelry. We have highlighted some examples for you.

Masculin yellow gold signet ring with bloodstone.

Bloodstone & Zodiac signs

Bloodstone is the alternative birthstone of the Aries. In addition to bloodstone, Aries also owns diamond as a birthstone! That sounds promising. The main characteristics of people born between March 21 and April 20 are impulsive, confident, stubborn and positive.

Learn more about colored gemstones and diamonds

Do you want to learn everything about colored gems and colored diamonds? Book a diamond tour at Royal Coster Diamonds in Amsterdam. You see some of the world’s greatest (colored) diamonds, historical artifacts and much more!
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