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Cornflower Blue Sapphire – A Complete Buyer’s Guide

What are Blue Sapphires?

Blue sapphires are the material corundum that is naturally formed over millions of years under slow transformation due to geothermal properties and pressure underneath the earth. All sapphires are corundum, but all corundum is not called sapphire. The exception is the ruby, the red variety of the corundum.

Sapphires come in all colors and shades you can think of and some sapphires have a magnificent color blend while some display change of color under natural light and fluorescent light. One special variety of sapphire has a star effect, also known as asterism due to the patterns of tiny inclusions that reflect light.

Sapphire colors are a result of the existence of foreign material in the stone. Pure corundum is colorless also know as white sapphire. All other colors are generated due to the absorption of certain wavelengths of natural light by these foreign materials. The color we see is the blend of the colors that were not absorbed. Blue sapphires are made by natural corundum that is mixed with titanium and iron traces.

What is Cornflower Blue Sapphire?

Well, this is a sapphire with a specific shade of blue color that closely resembles the color of a regular cornflower. But you should be careful to use the right natural color of cornflower for benchmarking against the gemstone.

If you search the web today you will find cornflower with different shades. This may be due to the age of the flower, lighting condition under which the photo is taken, or due to the post color corrections. The most accurate cornflower blue is shown in the below picture.

The RGB color code for cornflower blue is #6495ed. The Blue you should be expecting out of a cornflower blue sapphire is a well-saturated blue, yet it has some lightness and softness.

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The Characteristics of Cornflower Blue Sapphires

The Cornflower blue sapphire, akin to the colour of the flower it is name is based carries a light, but unique tone. One that is darker than the average light blue sapphire, but contains a unique hue, that carries a velvety glow. The blue of Cornflower blue sapphire can be considered a variant within the family of those carry elements of that velvety blue texture. Cornflower blue sapphires are found in a number of sapphire producing nations, most notably Ceylon. Historically the region of Kashmir was famous for producing quality blue sapphires, with mines in this region producing a variant of the Cornflower coloured blue sapphire. However, in recent times, the supply of sapphires from this part of the world has dropped off, with Ceylon sapphires taking the lead. The island nation is amongst the most famous location for producing quality natural sapphires.

Cornflower Blue Sapphire Characteristics


Distinct Blue Hue- Blue Hue Over 75 Per cent

Countries of Origin

Primarily Ceylon (Sri Lanka)


Very Rare


Price Depends on Clarity, Cut, and Carat

Distinct Features

Presence of a Distinct Velvet-like Tone

Cornflower vs Other Popular Sapphires

The competition between gemstones is one that is relatively well noted when it comes to diamonds and the other gemstones in relation to the various attributes that challenge the carbon-based stone’s dominance. A point which we have engaged in studying the rise of sapphires, notably the white sapphire variant in relation to diamonds. Within the sapphire family, the presence of various colour types (e.g blue, pink, green sapphires) has meant that people often settle on a single hue for their sapphire gemstone of choice, and pay less attention to the various tones of sapphires that vary with respect to saturation and vividity. Cornflower sapphires are at the top list of sapphires that distinguish themselves in accordance with colour. Coloured stones are able to distinguish themselves in terms of the types and/rarity of their hues. Here Cornflower blue sapphires hold a prestigious position along with the Royal blue sapphires, and near the popularity of the elusive Padparadscha sapphires. So the question is, what happens if you are faced with the choice of picking a top-quality blue sapphire? How would you go about making this choice in light of competing alternatives within the blue sapphire family? Here are certain factors worth considering, factors that help distinguish the cornflower variant:

What Sets the Cornflower Blue Sapphire Apart from the Rest?

In the world of sapphires, and for gemstones in the general rarity of the stone, or the rarity of specific features matter significantly. For gemstone seekers and fine jewellery buyers, it is the little details that count. Whilst a gemstone, like a blue sapphire, already carries the mark of value as a precious stone, there are sub-varieties that stand out even further, holding a position of distinct value and beauty. The Cornflower blue sapphire sets itself apart from other sapphires, notably blue sapphires. Here are a few reasons why:

The Greater Prominence of its Diachronic Character

Sapphires are gemstones that are dichroic in character: meaning the colour that is present in the stone tends to change depending on the direction from which the stone is viewed. In the Cornflower blue variant, the dichroic character of the gemstone is more pronounced in contrast to the others in the blue sapphire range. This means the variance of the colour, tends to be either less or more visible, depending on the angle from which the stone is viewed. With the colour that is present in the stone, appearing to be stronger in tone when viewed from a certain direction; conversely, the cornflower sapphire would exhibit a lighter bluish tone when viewed from another angle. What makes the cornflower blue sapphire stand out is that stone seems to, depending on the viewing angle, exhibits almost two types of blue. With the cornflower blue (an actual colour) shifting in tint, showing shades of the lake and even sky blue colours. These shifts in its tint depend on the direction of the viewing and the light source. Whilst cornflower blue sapphires are not two-toned gemstones (as these are specific variants in the sapphire family), they are nonetheless distinct in their colour, and the manner of their interaction with light.

How to Care for Cornflower Blue Sapphires

Cornflower Blue Sapphires are second in hardness to diamonds and moissanites and score a 9 on the Mohs scale. Due to this, they don’t need special protection like most other gemstones, and can withstand a substantial amount of wear and tear.  But despite this fact, it’s still important to clean and maintain the stone so that it lasts for a long time.

These sapphires can be cleaned with a simple solution of warm soapy water, and a soft brush. It’s important to ensure that the soap contains no harsh chemicals. Always keep your stone away from harsh chemicals, including lotions, hairsprays, and perfumes.

When storing your sapphire, ensure that the stone is kept in a separate pouch or compartment in the jewelry box. It can scratch all softer gemstones and metals and in turn, be scratched by harder stones like diamond and moissanite.

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