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Colored Lab Grown Diamonds
Shop Ritani's IGI-certified colored lab-grown diamonds. Choose from blue, pink, yellow, orange, red, and green diamonds. Customize by shape, carat, intensity, and clarity. Start designing your unique piece today
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Quick Ship Diamonds
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.Best Value
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
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.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.
ColorThe overall hue of the diamond. Some diamond colors are rarer and thus more expensive.
Intensity
This refers to how saturated the diamond's color is.
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.
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Delivery Date
In a rush to get your diamond? Choose your ideal delivery date.
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.
Delivery Date
In a rush to get your diamond? Choose your ideal delivery date.
Polish
A well-polished diamond will have excellent light return.
Excellent
Very Good
Good
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.
None
Faint
Medium
Strong
Very Strong
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.
Excellent
Very Good
Good
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.
None
Small
Medium
Large
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
Quick Ship Diamonds
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.Best Value
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
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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Shop Ritani's IGI-certified colored lab-grown diamonds. Choose from blue, pink, yellow, orange, red, and green diamonds. Customize by shape, carat, intensity, and clarity. Start designing your unique piece today
Colored Lab Grown Diamonds
Shop Ritani's IGI-certified colored lab-grown diamonds. Choose from blue, pink, yellow, orange, red, and green diamonds. Customize by shape, carat, intensity, and clarity. Start designing your unique piece today!
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Frequently Asked Questions
How does fluorescence affect a diamond's appearance?
Fluorescence in diamonds is a glow that can occur under UV light. It has minimal impact on the diamond's appearance and can be used to save money.How does the shape of a diamond influence its personality and price?
The shape of a diamond influences its personality and price by affecting how it reflects light and its overall aesthetic appeal.How is the carat of a diamond measured?
Carat is the measure of a diamond's weight and size. Ritani offers diamonds ranging from 0.18 to 25.00 carats, with 1.00 carat being the most popular.What are colored lab-grown diamonds?
Colored lab-grown diamonds are diamonds created in a laboratory that come in various hues. They have the same physical, chemical, and optical properties as natural diamonds.What certifications do Ritani's lab-grown diamonds have?
All of Ritani s lab-grown diamonds are certified by reputable grading laboratories, ensuring their quality and authenticity.What determines the overall hue of a colored diamond?
The overall hue of a colored diamond is determined by the trace elements and structural irregularities present during its formation.What does the saturation of a diamond's color refer to?
The saturation of a diamond's color refers to how intense or vivid the color appears.What factors impact the price of a colored lab-grown diamond?
Many factors impact the price of a colored lab-grown diamond, including its carat weight, color, clarity, and cut. Rarer colors tend to be more expensive.What is diamond clarity, and why is it important?
Diamond clarity indicates how many flaws or inclusions are visible to the naked eye. Fewer flaws generally mean a more beautiful and valuable diamond.What is the significance of a diamond's cut?
The cut of a diamond refers to the quality of its proportions and symmetry. A well-cut diamond will produce more sparkle and is considered the most important of the 4 Cs.
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