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4 Carat Diamonds

We believe diamonds say more than a thousand words. And nothing speaks as boldly as a brilliant 4 carat diamond. With its incredible shine and impressive size, this diamond is for those who don't like being hidden.

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Shop loose diamonds that ship in 2 days or less. Delivery dates may change if you add your diamond to a setting.
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.
Min
Max
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.
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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.
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%.
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Max
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.
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Max
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.
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Max
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.
Lab Diamond Growth Process

Lab diamonds are made using two processes, HPHT and CVD. Both mimic the natural process of earth diamonds. LEARN ABOUT LAB DIAMONDS

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Quick Ship
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Quick Ship
Quick Ship Diamonds
Shop loose diamonds that ship in 2 days or less. Delivery dates may change if you add your diamond to a setting.
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4.05 Carat Very Good Cut Emerald Lab-Grown Diamond - F Color, SI2 Clarity - IGI Certified
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4.10 Carat Very Good Cut Emerald Lab-Grown Diamond - G Color, SI1 Clarity - IGI Certified
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4.44 Carat Good Cut Emerald Lab-Grown Diamond - F Color, SI1 Clarity - IGI Certified
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4.49 Carat Very Good Cut Emerald Lab-Grown Diamond - F Color, SI1 Clarity - IGI Certified
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4.00 Carat Very Good Cut Radiant Lab-Grown Diamond - F Color, SI1 Clarity - IGI Certified
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4.00 Carat Very Good Cut Radiant Lab-Grown Diamond - F Color, SI1 Clarity - IGI Certified
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4.02 Carat Very Good Cut Radiant Lab-Grown Diamond - F Color, SI1 Clarity - IGI Certified
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4.06 Carat Very Good Cut Emerald Lab-Grown Diamond - H Color, VS2 Clarity - IGI Certified
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4.01 Carat Very Good Cut Cushion Lab-Grown Diamond - G Color, SI1 Clarity - IGI Certified
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4.08 Carat Very Good Cut Emerald Lab-Grown Diamond - H Color, VS2 Clarity - IGI Certified
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4.10 Carat Very Good Cut Emerald Lab-Grown Diamond - H Color, VS2 Clarity - IGI Certified
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4.01 Carat Very Good Cut Radiant Lab-Grown Diamond - F Color, SI1 Clarity - IGI Certified
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4.02 Carat Very Good Cut Radiant Lab-Grown Diamond - F Color, SI1 Clarity - IGI Certified
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4.02 Carat Very Good Cut Radiant Lab-Grown Diamond - F Color, SI1 Clarity - IGI Certified
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4.03 Carat Very Good Cut Radiant Lab-Grown Diamond - F Color, SI1 Clarity - IGI Certified
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4.10 Carat Very Good Cut Radiant Lab-Grown Diamond - F Color, SI1 Clarity - IGI Certified
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4.10 Carat Very Good Cut Radiant Lab-Grown Diamond - G Color, SI1 Clarity - IGI Certified
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4.06 Carat Very Good Cut Cushion Lab-Grown Diamond - G Color, SI1 Clarity - IGI Certified
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4.08 Carat Very Good Cut Radiant Lab-Grown Diamond - F Color, SI1 Clarity - IGI Certified
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5.00 Carat Very Good Cut Emerald Lab-Grown Diamond - G Color, SI1 Clarity - IGI Certified
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4.00 Carat Very Good Cut Marquise Lab-Grown Diamond - G Color, SI1 Clarity - IGI Certified
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4.10 Carat Very Good Cut Radiant Lab-Grown Diamond - F Color, SI1 Clarity - IGI Certified
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4.07 Carat Very Good Cut Pear Lab-Grown Diamond - G Color, SI1 Clarity - IGI Certified
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4.02 Carat Very Good Cut Radiant Lab-Grown Diamond - F Color, SI1 Clarity - IGI Certified
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We believe diamonds say more than a thousand words. And nothing speaks as boldly as a brilliant 4 carat diamond. With its incredible shine and impressive size, this diamond is for those who don't like being hidden.

The Ritani Diamond Range

As a leader in the jewelry industry, we offer a diverse range of loose 4 carat diamonds to help you find a piece that reflects your individual style. We have a diamond for your exact taste, from vintage styles to contemporary, newer shapes. Our round diamonds are for the classics at heart, but the oval and pear shapes celebrate edgy buyers who are always at the forefront of trends.

Why Choose Ritani Diamonds

The Ritani difference means more than good jewelry. It means certified quality. Our earth-grown diamonds are GIA and AGS certified. These reports help us offer you pricing transparency. The price you see on our 4 carat diamonds is the price you pay. We have no inflated markups, just clear and detailed price breakdowns.

Shop 4 Carat Diamonds

Whether you want a simple pendant or a 4 carat diamond ring with a solitaire design, we have the perfect diamond. Look through our online collection to buy your 4 carat diamond ring or reach out to us, and we will help you design a ring perfect for your significant other.

If you need help selecting your 4 Carat Diamonds, reach out to us at 1-888-9RITANI or chat now.​

Common Questions

Frequently Asked Questions

The price range for 4-carat diamonds at Ritani varies based on the diamond's quality, including its cut, color, clarity, and certification. Prices typically start from around $60,000 and can go up significantly.

Ritani's 4 carat diamonds are certified by reputable gemological laboratories such as the Gemological Institute of America (GIA) and the American Gem Society (AGS). These certifications provide an assessment of the diamond's quality and authenticity.

Yes, Ritani offers a lifetime warranty on all engagement rings and wedding bands, including those with 4-carat diamonds, covering manufacturing defects.

The price of a 4 carat diamond is influenced by its cut, color, clarity, and carat weight. Other factors include the diamond's shape, certification, and market demand. Ritani offers a Diamond Price Match Guarantee to ensure you get the best price.