9 carat Asscher cut diamond ring

Ultimate guide to buying an 9 carat Asscher cut diamond


9 carat Asscher cut diamonds are a beautiful choice – their shape gives them unparalleled elegance and the incredible flashes of sparkling light they deliver are stunning.

Asscher cuts are one of the less common choices for a diamond ring at 9 carats, which means that there may not be a huge selection available when you are looking.

However, that doesn’t mean that you should just settle for the first 9 carat Asscher you see. This guide will help you avoid sub-par stones and ensure you get a beautiful and brilliant four carat marquise that will be the perfect centerpiece for your ring.

9 carat asscher cut diamonds header image

How much do 9 carat Asscher cut diamonds cost?

9 carat Assher diamonds are extremely rare, so the price of an individual stone will depend on the 4 C quality factors, as well as how well the stone has been shaped.

It’s likely that the price could range from $150,000 for a diamond with low color and clarity (e.g. SI2 clarity, K color) all the way to around $800,000 for a diamond with high colour and clarity (e.g. FL clarity, D color)

It’s important to recognise that at this carat weight, there can be considerable differences between individual stones with similar specs on paper, so each stone really does need to be assessed on its own basis.

9 carat Asscher cut diamond size


A typical A typical 9 carat Asscher cut diamond may be around 11.68mm × 11.68mm × 7.59mm.

Here’s how it looks compared to a 8 carat and an 10 carat:

9 carat asscher diamond size comparison

One important thing to understand when you are looking at 9 carat Asscher cut diamonds is that carat weight is a measure of weight rather than size.

Carat weight is therefore spread out throughout the volume of the stone ie. length, width and depth.

Asscher cuts are the shape that is cut the deepest out of any diamond shape – they’re significantly deeper than the closely related 9 carat diamond ring in an emerald cut, or other square shapes like the 9 carat cushion cut diamond ring or a 9 carat diamond ring in a princess cut.

This means that there is less material available to spread out in the other directions. As a result, Asscher cut diamonds look smaller than most other diamond shapes at the same carat weight.

9 carat diamond color

As you likely know, diamond color is graded on a scale from D to Z, although most diamonds used in jewelry fall into the D to M range:

9 Color scale

Higher carat weight diamonds tend to show up color more easily than smaller stones, especially in the corners where they sparkle less.

If you want to ensure your diamond doesn’t have a yellow tint, it’s important to try and keep the color as high up the scale as possible.

For most 9 carat diamonds though, I color is a good blend between being white enough so that it doesn’t look yellow, but also not paying more than you need to.

9 carat asscher cut diamond color recommendation

This applies equally to whether you are choosing a white colored setting (ie. platinum or white gold) or a yellow gold setting for your ring.

9 carat Asscher diamond clarity

Clarity is a measure of the presence of inclusions (or flaws) within a diamond.

The clarity scale runs:

9 diamond Clarity scale

EAsscher cut diamonds are a little different to most other shapes because they have a large, flat table on the top of the stone which can act like a window, making inclusions easier to see.

So, while with some other shapes, inclusions can be hidden under the angled top ‘crown facets’, Asscher cut diamonds don’t usually allow this.

At higher carat weights, this issue is compounded as a bigger diamond means a bigger window where inclusions can be seen.

A good starting point for 9 carat Asscher cut diamond clarity is SI1:

9 carat asscher cut diamond clarity

However, depending on the diamonds that are available at the time you are looking, you may need to increase this to VS2, or even higher, to ensure that the diamond is ‘eye clean’ and no flaws can be seen.

9 carat Asscher cut diamond ring on the hand

Higher carat weight rings mean that additional considerations can be needed to be taken into account, depending on the ring setting style chosen.

These images of 9 carat Asscher cut diamond rings on the finger will show you how big your ring could actually look.

9 carat Asscher cut diamond solitaire ring

Solitaire settings are a great match for 9 carat Asscher cuts – the simple style is a great pairing with the elegance of the diamond.

9 carat asscher cut solitare diamond ring

A major trend with settings is super slim and petite bands and prongs, which are effective in making the stone itself look larger.

While these can look great, some care does need to be taken with higher carat weights, as an extremely narrow band may not be wide enough to support the stone. It may twist on the finger and become uncomfortable.

If you’re choosing a solitaire setting to match a 9 carat Asscher cut, I recommend you choose a band of at least 2.5mm width.

Best Place To Buy a 9 Carat Asscher Cut Diamond Ring

For smaller carat weights, my recommended retailers are usually James Allen or Brilliant Earth. Both offer a huge selection of stones and high quality service.

Neither retailer offers 9 carat diamonds, however, so my strong recommendation is to find a reputable diamond dealer who can assist you with sourcing your diamond. My recommendation is Alon Mor at The Diamond Oak.

Alon is a third generation diamond dealer who specialises in higher carat weight diamonds and puts a huge emphasis on personalised service and finding the right stone for each person.

I like this review of his service – it’s worth a read to understand just how special buying a diamond can be.

If you’d like to feel as special as the person in this review, I’d recommend getting in touch with Alon. Let him know you heard of him through Ringspo and he will go above and beyond to make the experience even more special.