Natural blue diamonds are very rare, which makes them very expensive. The blueness comes from the presence of boron in the diamond’s carbon structure, and they range in colour from pale to dark blue, and every shade in between. There are only a few diamond mines where natural blue diamonds can be found, which include the Cullinan Mine in South Africa, the Argyle Mine in Australia and the Goloconda Mine in India.
Rare & Expensive
Natural blue diamonds are incredibly rare and are generally regarded as the most expensive of all coloured diamonds, and there are tinges of blue and grey that can blend with the blue shade. As with all diamonds, blue stones are graded using the 4Cs – cut, clarity, colour and carat. The colour intensity is the attribute that relates to the diamond’s value.
Colour Intensity
If you are considering blue diamonds for your engagement ring, it is worth noting that the intensity of the colour comes into play, with grading as follows:
- Faint Blue
- Very Light Blue
- Light Blue
- Fancy Light Blue
- Fancy Blue
- Fancy Intense Blue
- Fancy Deep Blue
- Fancy Vivid Blue
The most expensive of blue diamonds are those with pure colours (no secondary colour), which are indeed very rare, and the most common secondary colours are grey and green. Generally speaking, the more vivid the colour, the more expensive the stone.
Small Blue Diamonds
Blue diamonds of less than 0.3 carat are more affordable. You could create a stunning blue diamond cluster to go around a large central stone. If you discuss your needs with a reputable custom jeweller, they can acquire loose stones and create one of the most stunning natural blue diamond engagement rings.
Popular Blue Diamond Settings
The most popular settings for a blue diamond engagement ring are as follows:
- The Halo Setting – small blue diamonds set in a halo around a central stone
- Tension Setting – allows the stones to reflect maximum light
- Three Stone Setting – a small colourless stone on either side of the blue diamond
The Allure Of A Custom-Made Blue Diamond Engagement Ring
Blue diamonds are stunning in any item of jewellery, and if you wish to create a blue diamond engagement ring that is one-of-a-kind, search online for a reputable custom jeweller, who would have the contacts to procure blue diamonds and the skill to create unique engagement ring. You can choose the metal, the stones and the setting, and the cost of having the ring hand-crafted is similar to buying a diamond ring that is in a jewellery store.
Computer Assisted Ring Design
Most custom jewellers use state of the art software that allows you to create a 3D image of the ring prior to starting the work, allowing you to experience the wonders of the ring. If, for example, you found an image that represents the design you are looking for, the custom jeweller can use this to base the design upon.
Blue diamonds are the rarest form, especially a pure colour, and small blue stones are affordable and can be used to create a unique blue diamond engagement ring that will become the next family heirloom.
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