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GIA Certified Loose Diamonds

Find your perfect sparkle with Ritani's premium loose diamonds, each showcased in captivating 360¬į HD. Select from our top-tier cuts, clarities, and carats with confidence, and enjoy complimentary shipping. Your dream diamond awaits. Shop now.

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Best Value
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Best Value
Shop loose diamonds in our inventory that we have identified as being Best Value. Best price and balance of the 4C's on the market.
Ritani Reserve Ritani Reserve
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Ritani Reserve
Ritani Reserve Diamonds are an exclusive selection of diamonds that have the best cut which offers maximum sparkle. They reflect the most light, maximum brilliance, fire, and scintillation.
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Shape
Shape influences the personality and price of a diamond.
Price
Many factors impact diamond price. With Ritani's Diamond Price Match Guarantee you can be confident you'll get the best price for a diamond. Tip: Tradition tells you to budget 2-3 months' salary for your ring. We say, just do you.
Carat
Carat is the measure of a diamond's weight and size. We offer an array of high-quality diamonds ranging from 0.18 to 25.00 carats- with 1.00 carat being the most popular.
Color
A diamond’s color grade actually measures how little color it reflects. To strike the best balance between cost and beauty, go for diamonds in the Near Colorless range: G, H, and I.
Clarity
Clarity indicates how many flaws are visible to the naked eye. Too many flaws can detract from a diamond's beauty.
Cut
Cut is the quality of a diamond’s proportions and symmetry. The better a diamond’s proportions and symmetry, the more sparkle it will produce. Cut is the most important of the 4 Cs.
Delivery Date
In a rush to get your diamond? Choose your ideal delivery date.
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Polish
A well-polished diamond will have excellent light return.
Fluorescence
Some diamonds glow blue or green when exposed to UV light. Since fluorescence is rarely visible, it has minimal impact on the appearance of your diamond. To save money, go for medium fluorescence.
Depth
Depth percentage correlates with a diamond's sparkle factor. It is measured by dividing the diamond height by its diameter. For maximum sparkle, the depth percentage of a round diamond should be between 54% and 66%.
Length/Width Ratio
The proportional relationship between your diamond’s length and width. A perfect round diamond would measure equally 1-to-1, so its LxW ratio would measure as 1.
Symmetry
Symmetry tells you how well a diamond’s facets align to create sparkle. Diamonds with perfect symmetry create the most sparkle and earn a grade of Excellent or Ideal.
Table
Table percentage tells you how big a diamond’s topmost facet (aka table) is in comparison to its diameter (aka girdle). When that ratio is in the right range, a diamond will sparkle more.
Culet
The culet is the point at the bottom of the diamond. If the point has a facet on it, it can stop light from reflecting and detract from the diamond's sparkle. Choose a diamond with no culet for optimum sparkle.
Certificate
All of Ritani’s natural diamonds are certified by either the GIA or AGSL, the industry’s two most respected grading labs.
Polish
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A well-polished diamond will have excellent light return.
Excellent
Very Good
Good
Fluorescence
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Some diamonds glow blue or green when exposed to UV light. Since fluorescence is rarely visible, it has minimal impact on the appearance of your diamond. To save money, go for medium fluorescence.
None
Faint
Medium
Strong
Very Strong
Depth
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Depth percentage correlates with a diamond's sparkle factor. It is measured by dividing the diamond height by its diameter. For maximum sparkle, the depth percentage of a round diamond should be between 54% and 66%.
Length/Width Ratio
Tool Tip Icon
The proportional relationship between your diamond’s length and width. A perfect round diamond would measure equally 1-to-1, so its LxW ratio would measure as 1.
Symmetry
Tool Tip Icon
Symmetry tells you how well a diamond’s facets align to create sparkle. Diamonds with perfect symmetry create the most sparkle and earn a grade of Excellent or Ideal.
Excellent
Very Good
Good
Table
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Table percentage tells you how big a diamond’s topmost facet (aka table) is in comparison to its diameter (aka girdle). When that ratio is in the right range, a diamond will sparkle more.
Culet
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The culet is the point at the bottom of the diamond. If the point has a facet on it, it can stop light from reflecting and detract from the diamond's sparkle. Choose a diamond with no culet for optimum sparkle.
None
Very Small
Small
Medium
Slightly Large
Large
Certificate
Tool Tip Icon
All of Ritani’s natural diamonds are certified by either the GIA or AGSL, the industry’s two most respected grading labs.
Best Value
Tool Tip Icon
Best Value
Shop loose diamonds in our inventory that we have identified as being Best Value. Best price and balance of the 4C's on the market.
Ritani Reserve Ritani Reserve
Tool Tip Icon
Ritani Reserve
Ritani Reserve Diamonds are an exclusive selection of diamonds that have the best cut which offers maximum sparkle. They reflect the most light, maximum brilliance, fire, and scintillation.
0.18 Carat Emerald Diamond
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$175.00
Good | D | VS2
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0.19 Carat Emerald Diamond
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$176.00
Good | F | VS2
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0.24 Carat Emerald Diamond
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$177.00
Good | E | SI1
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0.18 Carat Emerald Diamond
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$191.00
Good | E | VS1
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0.18 Carat Emerald Diamond
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$193.00
Good | G | VVS2
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0.18 Carat Emerald Diamond
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$197.00
Good | D | SI1
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0.23 Carat Emerald Diamond
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$207.00
Good | G | SI1
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2% off Natural Diamonds with code SAVE2
RECOMMENDED DIAMONDS
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We’re here to give you all the tools you need to help you find the best diamond for your budget. Our goal is to provide the most affordable diamonds with transparent pricing. We’ve made shopping even easier for you by labeling our lowest priced diamonds with the Best Value badge.
Best Value
1.05 Carat Round Diamond
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$7,255.00
Ideal | G | IF
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1.32 Carat Round Diamond
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$6,421.00
Ideal | I | VVS1
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1.34 Carat Round Diamond
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$6,201.00
Ideal | J | IF
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WANT TO VIEW MORE RECOMMENDATIONS?
Change your filters to view even more diamond recommendations, or chat with a gemologist to find the right diamond for you.
0.18 Carat Marquise Diamond
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$216.00
Good | F | SI2
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0.40 Carat Pear Diamond
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$216.00
Very Good | L | VS2
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0.19 Carat Round Diamond
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$218.00
Ideal | I | IF
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0.20 Carat Round Diamond
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$219.00
Ideal | F | SI1
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0.20 Carat Round Diamond
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$224.00
Ideal | F | SI2
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0.18 Carat Emerald Diamond
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$225.00
Very Good | E | VS1
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0.18 Carat Round Diamond
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$227.00
Very Good | I | VVS1
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0.20 Carat Round Diamond
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$227.00
Very Good | E | SI1
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0.20 Carat Round Diamond
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$228.00
Very Good | F | SI1
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0.20 Carat Round Diamond
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$229.00
Ideal | F | SI2
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0.20 Carat Round Diamond
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$230.00
Ideal | E | SI1
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Get the Best Deal - Look for Best Value diamonds while you shop. Best Value - Learn more
0.20 Carat Round Diamond
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$230.00
Very Good | F | SI1
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0.18 Carat Round Diamond
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$231.00
Ideal | F | SI2
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0.20 Carat Round Diamond
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$231.00
Ideal | F | SI1
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0.20 Carat Round Diamond
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$233.00
Ideal | E | SI1
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0.20 Carat Round Diamond
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$234.00
Very Good | J | VVS1
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Best Value
Best Value
0.20 Carat Round Diamond
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$234.00
Ideal | F | SI1
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GIA and AGS Certified Loose Diamonds

Ritani proudly offers an extensive selection of GIA and AGS Certified loose diamonds in ten shapes, numerous carat weights, and other variables to suit a range of preferences and budgets, ensuring you will find your ideal diamond. Before you begin diamond shopping, make sure you know about the 4Cs of diamonds. In summary, the 4Cs of diamonds determine the value of the stone based on its cut, clarity, color, and carat weight. Colorless diamonds with an exact cut and minimal blemishes are considered the most valuable, but it really comes down to one’s preference. Overall, we recommend choosing the best cut grade your budget will allow. Utilize our education section to learn more about diamonds to give yourself a clear-cut idea of what you want. You can request HD images or videos of your diamond if they are not listed. If you need assistance while selecting your ideal diamond, contact us to chat with a member of our diamond concierge team or make an appointment with one of our independent virtual gemologists to get a live and in-depth look at the diamond you are interested in.

Earth Grown Diamonds

Earth grown diamonds are mined from deep under the earth's surface where they have lain dormant for millions of years. When you hold an earth grown diamond, reflect on the immense journey this diamond has taken and the history it has endured.

A diamond starts out in the lowly form of graphite, such as you might find in the tip of your pencil. Over the course of hundreds of millions of years, the immense pressure and temperature produced deep inside the earth rearrange the carbon atoms into a crystal structure.

Then miners dig deep tunnels under the earth and collect the rough diamonds. The rough diamond looks nothing like the sparkly diamond you are holding. It has an irregular shape, is very dirty and looks dull. The diamond is then cleaned, cut into its desired shape, and finally polished into the beautiful diamond you are now holding!

All Ritani earth grown diamonds are certified by either the AGS or GIA ‚Äď the two most respected independent grading labs in the world.

If you need help selecting your Diamonds, reach out to us at 1-888-9RITANI or chat now.

Frequently Asked Questions

  • What are the 4 cs?
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    A diamond can be described in four words: Carat, Color, Clarity, Cut. Those four words, also known as the 4 Cs (because they all begin with the letter C. Duh ūüėĀ) will tell you almost everything you need to know about the diamond.

    Carat describes the weight of the diamond, measured in carats (1 carat is equivalent to 200 milligrams).

    Color tells you how white the diamond is. Some diamonds have a yellowish tinge to it caused by impurities in the diamond.

    Clarity tells you how clean the diamond is. A diamond can have inclusions (imperfections within the diamond) or blemishes (imperfections on the surface of the diamond).

    Cut describes a diamond's proportions, how shallow or deep it is cut and the angles of its facets. This is the most important of the 4cs as it will dictate how much your diamond sparkles!

  • How is a diamond formed?
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    A diamond is formed deep underneath the earth's surface. It starts out in the lowly form of graphite, such as you might find in the tip of your pencil. Over the course of hundereds of millions of years, the immense pressure and temperature produced deep inside the earth rearrange the carbon atoms into a crystal structure.

    Then miners dig deep tunnels under the earth and collect the rough diamonds. The rough diamond looks nothing like the sparkly diamond you are holding. It has an irregular shape, is very dirty and looks dull. The diamond is then cleaned, cut into it's desired shape, and finally polished into the beautiful diamond you are now holding!


  • What are the different diamond shapes?
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    Diamonds come in many different shapes. From the classic round cut diamond to the romantically shaped heart diamond, you are guaranteed to find a shape that pleases you.

    Here are the 10 modern diamond shapes, ranked in order of popularity: Round, Oval, Emerald, Cushion, Princess, Pear, Radiant, Marquise, Asscher, Heart.

  • What are conflict-free diamonds?
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    ‚ÄčConflict-free diamonds are diamonds that are mined ethically and legally without any connection to terror groups or war-torn countries.

    Although much more common in the past, conflict diamonds are now very hard to obtain in most countries thanks to the Kimberley process. The Kimberley process was established in 2003 by the United Nations to ensure that all diamonds are ethically sourced and are not used to finance wars.

    At Ritani, we go above and beyond that to make sure that all our diamonds are ethically sourced and come from companies that treat their workers fairly. We carefully select our suppliers and ensure that the diamond you get was mined ethically and conflict free.

  • How much does a diamond cost?
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    A diamond can cost anywhere between $200 and several million dollars depending on the 4 cs.