Teal Sapphire: The Trending Color, Explained by a Sourcer

Between pure green and pure blue, the vocabulary used to describe gem color has seven steps: very slightly bluish green, bluish green, very strongly bluish green, green-blue, very strongly greenish blue, greenish blue, very slightly greenish blue. Teal is none of them.

The market puts its teal somewhere in the middle of that list, and no rule says where it starts or stops. Even the reference descriptions overlap: blue sapphire is described as running all the way to strongly greenish blue, green sapphire as starting at strongly bluish green. Teal is the seam between the two.

Sellers narrow it down with ratios: 50/50, 70/30 blue to green. Handy shorthand, but it is an eye, not a measurement. A color description gives a dominant hue, a modifying hue, a tone and a saturation. No ratio.

Proof from our own trays. On 7 October 2026 we list eight blue-green sapphires, from 1.19 to 1.98 carats: four as teal, two as green, two as bi-color. Line them up and the border between our teal and our green is a judgment call. Mine.

Two color engines run in the same crystal. Iron and titanium together make sapphire blue. Iron on its own makes yellow. Blue plus yellow reads green, which is why blue, green and yellow sapphires often come out of the same ground.

A sapphire also shows two colors depending on the direction you look through it. In a blue-green stone, one direction is bluer and the other greener. Turn a teal under a lamp and you can watch it happen.

Here's the thing: cutters usually orient a sapphire to show its violetish blue and bury the greenish one, because greenish stones are worth less. My view: teal is that unwanted color, finally given a name.

Yes, and it can work against the color. Most blue sapphires are heated. It is by far the most common treatment, the result is stable, and the trade accepts it. Two of its known results are more blue and a reduction of greenish tints. Good news for a blue sapphire. For a teal, it means the furnace can push the stone toward plain blue.

So ask. Our eight stones above are all heated, and each page says so. Untreated sapphires are a small, pricier corner of the market, and the word unheated is only worth paying for with a report from an independent outside laboratory behind it. The full picture is in our guide to unheated versus heated sapphire.

Anywhere sapphire grows with enough iron. Four names come up most.

• Australia. The classic source of dark blue sapphire with a strong greenish tint, and of some of the world's finest green and yellow sapphires. Virtually all of it is heated to lighten the color.
• Madagascar. Iron-rich basalt deposits in the north, a different geology in the south. The stones often show distinct color zoning.
• Sri Lanka. The island produces virtually every color of sapphire. It is where I buy.
• Montana. Fancy sapphires since the late 1800s, mostly pale, light tones. Greens are among them.

What is for sale tells its own story. On 7 October 2026 we read 155 teal sapphire listings, sold stones included, at the two sellers that print an origin: 113 said Madagascar, 37 Sri Lanka, 3 Tanzania. None said Australia or Montana. Two sellers are not the market, and a sapphire's origin is hard to verify: treat a place name as a claim that needs a report. For the wider picture, see our colored gemstone market statistics.

Here is how we sort them on our own trays.

• Teal. Blue and green blended into one color across the whole stone.
• Green sapphire. Green has won. The family runs from blue-green to yellow-green, usually with low saturation, and the weak ones get called khaki or olive. Our green sapphire buying guide goes further.
• Parti or bi-color. The colors sit in separate zones instead of blending. Color zoning is common in sapphire. Here the cutter keeps it on show instead of hiding it.

On 7 October 2026 we read the asking prices of 50 unsold teal sapphires between 1 and 2 carats at three independent sellers, in US dollars.

So a 1.5-carat teal is typically asked between $1,600 and $2,100. These are asking prices, not sale prices, and each seller decides alone what it calls teal. Above 3 carats the listings get thin and the prices scatter: read them one by one.

Four checks, in this order.

1. Saturation before ratio. The usual weakness of blue-green sapphire is a low-saturation color. My view: a vivid stone that leans blue or green beats a dull 50/50.
2. Tone. Iron makes these stones dark, and a dark tone cuts brilliance. Pick a stone whose color you can still read away from the lamp.
3. Light. Blue and green gems look their best under office-type fluorescent light, less so under warm bulbs. See the stone in several lights before you decide.
4. Window. Look straight down through the top. A pale, see-through patch in the middle is a window: light is leaking out of the bottom and the color goes with it.

Then the paperwork: heated or not, and what a gemstone certificate proves. For a ring, see our sapphire engagement rings guide. For the other colors, compare all the sapphire colors or open the complete guide to sapphire.