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1.5 Carat Diamonds

Shop our beautiful collection of 1.5-carat diamonds. Take advantage of our diamond transparency to see the wholesale cost of your diamond! Look for the best value badge to find the best priced diamonds in the market.

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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.
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
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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
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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
Fair
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
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All of Ritani’s natural diamonds are certified by either the GIA or AGSL, the industry’s two most respected grading labs.
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.
1.50 Carat Round Diamond
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Natural
BEST VALUE
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Diamond Report

$4,299.00 $4,478.00
1.5Carat
IColor
SI1Clarity
IdealCut
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1.51 Carat Round Diamond
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Natural
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Diamond Report

$5,134.00 $5,348.00
1.51Carat
IColor
SI1Clarity
IdealCut
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1.52 Carat Round Diamond
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Natural
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Diamond Report

$5,981.00 $6,230.00
1.52Carat
HColor
SI1Clarity
IdealCut
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1.57 Carat Round Diamond
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Natural
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Diamond Report

$6,441.00 $6,709.00
1.57Carat
HColor
SI1Clarity
IdealCut
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1.51 Carat Round Diamond
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Natural
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Diamond Report

$6,530.00 $6,802.00
1.51Carat
GColor
SI1Clarity
IdealCut
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1.50 Carat Round Diamond
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Natural
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Diamond Report

$7,350.00 $7,656.00
1.5Carat
GColor
SI1Clarity
IdealCut
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1.52 Carat Round Diamond
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Natural
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Diamond Report

$7,496.00 $7,808.00
1.52Carat
GColor
SI1Clarity
IdealCut
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1.70 Carat Round Diamond
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Natural
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Diamond Report

$10,546.00 $10,985.00
1.7Carat
GColor
VS2Clarity
IdealCut
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GEMOLOGIST PICKS
These diamonds were hand picked by our in house gemologists who focus on balancing the 4 C's and best value pricing. Our gemologists are always here to help you find the diamond of your dreams. Chat Now
1.52 Carat Round Diamond
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Natural
BEST VALUE
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Diamond Report

$5,981.00 $6,230.00
1.52Carat
HColor
SI1Clarity
IdealCut
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1.57 Carat Round Diamond
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Natural
BEST VALUE
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Diamond Report

$6,441.00 $6,709.00
1.57Carat
HColor
SI1Clarity
IdealCut
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1.51 Carat Round Diamond
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Natural
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Diamond Report

$6,530.00 $6,802.00
1.51Carat
GColor
SI1Clarity
IdealCut
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Chat with a gemologist
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You can connect with a commission free gemologist instantly and receive a live diamond inspection on any diamond. You can also connect and shop together and compare up-to three diamonds at a time instantly. Try it out. Start your diamond concierge consultation today.
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1.50 Carat Cushion Diamond
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Natural
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Diamond Report

$3,049.00 $3,176.00
1.5Carat
IColor
SI1Clarity
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1.51 Carat Cushion Diamond
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Natural
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Diamond Report

$3,295.00 $3,432.00
1.51Carat
IColor
VS2Clarity
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1.52 Carat Cushion Diamond
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Natural
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Diamond Report

$3,446.00 $3,590.00
1.52Carat
IColor
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1.50 Carat Emerald Diamond
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Natural
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Diamond Report

$3,449.00 $3,593.00
1.5Carat
GColor
SI1Clarity
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1.52 Carat Cushion Diamond
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Natural
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Diamond Report

$3,695.00 $3,849.00
1.52Carat
HColor
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1.53 Carat Cushion Diamond
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Natural
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Diamond Report

$3,714.00 $3,869.00
1.53Carat
GColor
SI1Clarity
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1.53 Carat Cushion Diamond
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Diamond Report

$3,720.00 $3,875.00
1.53Carat
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1.51 Carat Cushion Diamond
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Natural
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Diamond Report

$3,727.00 $3,882.00
1.51Carat
HColor
SI1Clarity
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1.51 Carat Cushion Diamond
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Natural
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Diamond Report

$3,756.00 $3,913.00
1.51Carat
HColor
SI1Clarity
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1.54 Carat Cushion Diamond
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Natural
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Diamond Report

$3,901.00 $4,064.00
1.54Carat
HColor
SI1Clarity
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1.54 Carat Emerald Diamond
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Natural
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Diamond Report

$4,007.00 $4,174.00
1.54Carat
IColor
SI1Clarity
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1.51 Carat Emerald Diamond
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Natural
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Diamond Report

$4,019.00 $4,186.00
1.51Carat
IColor
SI1Clarity
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1.51 Carat Emerald Diamond
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Natural
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Diamond Report

$4,019.00 $4,186.00
1.51Carat
IColor
SI1Clarity
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1.51 Carat Cushion Diamond
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Natural
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Diamond Report

$4,113.00 $4,284.00
1.51Carat
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1.50 Carat Emerald Diamond
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Natural
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Diamond Report

$4,153.00 $4,326.00
1.5Carat
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1.52 Carat Emerald Diamond
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Natural
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Diamond Report

$4,210.00 $4,385.00
1.52Carat
HColor
SI1Clarity
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You’ve viewed 24 of 10,008 products

Shop our beautiful collection of 1.5-carat diamonds. Take advantage of our diamond transparency to see the wholesale cost of your diamond! Look for the best value badge to find the best priced diamonds in the market.

GIA-Certified 1.5-Carat Diamonds

1.5-Carat Weight

Discover a wonderful balance of diamond size and best-value prices in this collection from Ritani. Slightly larger than the average engagement ring diamond size, 1.5-carat diamonds are an excellent value option for those who want to upgrade from the more commonplace 1-carat size engagement ring diamond. This carat size will appear noticeably larger than a full carat, adding a little extra sparkle to any piece of jewelry. A 1.5-carat diamond is quite impressive without appearing too extravagant, allowing you to obtain a stunning engagement ring that fits within a reasonable budget. These diamonds also make a great size to add to a pendant or earrings. 

All Ritani diamonds come with a free appraisal and a grading certificate from the Gemological Institute of America (GIA) or American Gem Society (AGS), the world's most respected independent grading labs. 

Earth-Grown 1.5-Carat Diamonds

Earth-grown diamonds are mined from deep under the earth's surface where they have lain dormant for millions of years. Because earth-grown diamonds take hundreds of millions of years to form, each one represents an immense journey that has been taken and an incredible history that has been endured. 

A naturally formed diamond starts out in its earliest form as simple graphite, such as you might find in the tip of your pencil. Over the course of many, many millennia, the immense pressure and temperature produced deep inside the earth rearrange the carbon atoms. This creates the crystal structure of the diamond.

Miners then dig deep tunnels under the earth to collect the rough diamonds, which look nothing like the sparkly diamonds used in today's fine jewelry. These diamonds feature irregular shapes and are very dirty and dull, lacking the glamorous shine of a faceted gem. 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 – the two most respected independent grading labs in the world.

If you need help selecting your 1.5-carat diamonds, reach out to us at 1-888-9RITANI or chat now.

Frequently Asked Questions

  • Are 1.5-carat diamonds available in different shapes?
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    Yes, 1.5-carat diamonds are available in various shapes, including round, cushion, princess, asscher, oval, emerald, radiant, heart, pear, and marquise.

  • Can I customize the setting for a 1.5-carat diamond?
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    Yes, you can customize the setting for a 1.5-carat diamond by selecting your preferred setting style and metal on Ritani's website.

  • Can I insure my 1.5-carat diamond ring?
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    Yes, you can insure your 1.5-carat diamond ring just like any other piece of valuable jewelry.
  • Do 1.5-carat diamonds come with a certification?
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    Yes, all 1.5-carat diamonds at Ritani are certified by reputable gemological laboratories such as GIA, AGS or IGI.

  • Do you offer financing options for 1.5-carat diamond purchases?
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    Yes, we offer financing options for 1.5-carat diamond purchases through Klarna. You can choose to pay for your diamond over time with easy monthly payments. Select Affirm at checkout to apply.

  • How do I care for a 1.5-carat diamond ring?
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    To care for a 1.5-carat diamond ring, clean it regularly with a mild soap solution and a soft brush, avoid harsh chemicals and store it safely when not in use. Regular professional inspections and cleanings are also recommended.

  • How much does a 1.5-carat diamond cost?
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    A 1.5-carat diamond can cost anywhere between $2,300 and $82,000 depending on the 4C's: cut, color, clarity and carat. The median price is $9,600.

  • Is there a warranty on 1.5-carat diamond rings?
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    Yes, Ritani offers a lifetime warranty covering manufacturing defects on all engagement rings and wedding bands, including those with 1.5-carat diamonds.

  • What is the return policy for 1.5-carat diamonds?
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    Ritani offers a 30-day return policy for 1.5-carat diamonds, provided the items are in their original condition and accompanied by all documentation.
  • What settings are best for 1.5-carat diamonds?
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    The best settings for a 1.5-carat diamond are those that securely hold the stone while showcasing its size and brilliance. Popular settings include solitaire, halo and three-stone settings.