Discover the largest selection of cushion loose diamonds sold at wholesale prices from the largest diamond exchanges in the world. Buying a certified cushion loose diamond has never been easier.
Find our best offers:
Use our filters below to select the loose diamond of your choice.
We guarantee that the diamonds sold on our website are 100% natural and that they conform to their accompanying Gemological Certificates.
We guarantee that the loose diamonds offered to you are obtained from legitimate sources that are not involved in financing conflicts and are compliant with UN resolutions.
All the diamonds offered are sold with a Gemological Certificate issued by a gemology laboratory with international standing recognized by our profession.
Your invoice will be included in the package. Keep it somewhere safe, as it will constitute your warranty document.
We have been present online since 1999, which is 26 years of web trading!
If you would like personalized advice, call us at 1-800-700-2160 (Toll Free) or 1-302-722-6172.
Our Experts will be delighted to assist you and guide you as objectively as possible in making your choice.
Shipping: for an order placed today, delivery will be no later than Friday, 12 September.
Shipping Method: all orders are shipped using FedEx®.
Insurance: all our products are insured during shipping. They are therefore covered against all risk of loss or theft.
In your package, you will find:
Your diamond placed in a box: ready to present as a gift!
Order Status: as soon as your package has shipped, we will notify you of the tracking number. This will allow you to track the delivery process online.
If you are not at home: Fedex will contact you by telephone to agree on a time with you for the delivery of your package.
Payment Facilities (for an US delivery):
Our jewellery workshop is at your disposal to design and produce a setting. Our jewellers work with the most prestigious names in fine jewellery.
We invite you to consult our Catalog of Jewelry, you will find our Rings, Engagement Rings, Solitaires, Wedding Rings, Eternity Rings, Earrings and Pendants models in Yellow Gold, White Gold, Pink Gold or Platinum.
Our catalog contains more than 5000 items and the Rings and the Eternity Rings are in 3D (videos).
Your diamond placed in a box: ready to present as a gift!
We are diamantaire: we buy at the source and resell directly to the consumer. Having fewer middlemen means a lower selling price and therefore real savings for you!
All our loose diamonds and those used in our Diamond Jewelry are purchased from legitimate sources not involved in funding conflict and in compliance with United Nations Resolutions. Info Diamond hereby guarantees that these diamonds are conflict free, based on personal knowledge and/or written guarantees provided by the supplier of these diamonds. We sell only non-conflict diamonds.
Our jewellery workshop is at your disposal to design and produce a setting. Our jewellers work with the most prestigious names in fine jewellery. Our jewellers and designers will be able to help and advise you in the choice of a setting.
Click on this link to update our prices in your local currency or modify Tax (VAT).
Tip: hover your mouse cursor over the various fields in the form above or in the form's dropdown lists and you will see help or information about this field.
Certain filtering options can considerably limit the number of results obtained. These optional fields should therefore be used in moderation.
If you would like to receive personalized advice, call us at 1-800-700-2160 (Toll Free) or 1-302-722-6172.
Our Diamond and Jewelry Experts will be delighted to assist you and guide you as objectively as possible in making your choice.
A cushion cut diamond is a diamond that has a square or rectangular shape with rounded corners. This shape is labelled as "fancy".
Cushion cut diamonds are quite popular. Those that are well-cut and well-proportioned have great brilliance and fire.
Cushion cut diamonds are often used as center stones for engagement rings and diamond rings.
Many renowned jewelers propose rings that are set with cushion cut diamonds. This diamond is a classic and should feature on every ring catalog. Many celebrities chose a cushion cut diamond for their engagement ring, such as Ivanka Trump who picked a 6 carat cushion cut diamond for the engagement ring that Jared Kushner bought her. Very often, jewelers add a pave setting to enhance the diamond even more.
Thanks to their rounded corners, cushion cut diamonds are less fragile than princess cut diamonds, which have sharp corners. Cushion cut diamonds are therefore less prone to damage.
Cushion cut diamonds have an open table; therefore you should not pick one with a clarity grade below SI1. Otherwise, inclusions might be visible to the naked eye.
Between a cushion cut diamond and a round brilliant cut diamond that have the same weight, it is the former that will be the cheapest.
It is best that you choose a cushion cut diamond that weighs 0.50 carat or more. Indeed, a cushion cut diamond with a carat weight less than 0.50 will be too small, making it difficult to see the distinctive cushion shape of this diamond. Such diamonds will look more like round brilliant cut diamonds.
We recommend that you choose a color grade included between D and H for cushion cut diamonds. A F or G color cushion cut diamond is often a very good choice.
A cushion cut diamond that is pleasing to the eye and well-proportioned should have a Leng ÷ Width ratio included between 1.00 and 1.20. This ratio is calculated by dividing the length of the diamond by its width. You can find among our secondary filters a "Leng ÷ Width ratio" filter so as to select cushion cut diamonds with the desired ratio. The closer to 1 the ratio is , the squarer the diamond is. Conversely, the greater the ratio is (>1), the more rectangular the diamond will look. There is no particular recommendation when it comes to choosing between a square and a rectangular cushion cut diamond. Often, choosing one over the other will depend on the setting used and/or your personal taste.
The major gemological laboratories do not indicate the cut quality for fancy-cut diamonds (princess, radiant, oval, etc.) Grading reports only include cut quality for round brilliant cut diamonds, making it more difficult to know the cut quality of cushion cut diamonds. However, we made the choice of indicating the cut quality for our princess cut diamonds. Drawing from our knowledge and experience, we have designed an algorithm capable of evaluating the cut quality of each of our cushion cut diamonds. This way, choosing your gemstone will prove much easier as you will only need to use our secondary filters above to select a cut quality included between "Excellent" and "Good".
Cushion cut diamonds that have a rectangular shape (with a +/- 1.10 ratio) vary a lot depending on their weight and proportions because this diamond shape is not standardized. As an example, here are some possible dimensions:
A cushion cut diamond is almost always set on a ring with a four-prong setting. It is seldom found on pendants and earrings. A pave setting can also be added to enhance the diamond even more.
The price of a cushion cut diamond is always based on the "4Cs:" Cut (shape), Carat weight, Color, and Clarity.
Because the price of diamonds is expressed in USD on the international market, you will need to change your local currency for USD. The exchange of your local currency rate fluctuates daily according to the exchange market. Consequently, the selling price of a diamond featuring in our diamond bourse may be slightly different from one day to the next depending on the exchange rate of your local currency of the moment.
The prices listed below are selling prices, not resale prices. The value of a diamond will differ depending on whether you are buying or selling. If you wish to know the value of a diamond, we recommend that you use our diamond price calculator.
How much is a 1 carat cushion diamond? You will find below some examples of prices for cushion cut diamonds.
Below are some examples of prices for cushion shape diamonds of best quality (D Color and FL-IF Clarity) :
Below are some examples of prices for cushion shape diamonds of very good quality (E Color and VVS2 Clarity) :
Below are some examples of prices for cushion shape diamonds of good quality (G Color and VS2 Clarity) :
Below are some examples of prices for cushion shape diamonds of commercial quality (H Color and SI2 Clarity) :
Take your time to discover all the filters that we offer. They will save you some time, and will help you find your dream diamond more easily!
Tips: if you need help, move your cursor on the , which you can find on
the different options of our filters.
You should access the main filters (see picture below) by default, which will allow you to choose your preferred diamond shape. You may select several shapes at the same time, or all of them. You may also use different sliders in order to filter diamonds by weight, color, clarity, and price.
By clicking onto "Secondary Filters", you will have access to more options to narrow down your search results. You only need to select the different options of your choosing to narrow down your research.
You have the possibility to display the results in 2 different formats:
- List display (table): by clicking on this icon below the filters you can display the diamonds in a list (table) format.
- Grid view (thumbnail): by clicking on this icon below the filters you will be able to display the diamonds in a grid (thumbnail) format.