Cart (0)
1 Choose your diamond
1. Diamond
Design Diamond Icon
2 Choose your Setting
2. Setting
Design Ring Setting Icon
3 View Completed
3. Preview
Design Ring Setting Icon
Edit Columns

Marquise Cut K Color Diamonds

Shop our beautiful collection of Marquise Cut K Color 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.

Filters:
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.
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.
More Filters
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
Tool Tip Icon
A well-polished diamond will have excellent light return.
Excellent
Very Good
Good
Fluorescence
Tool Tip Icon
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
Tool Tip Icon
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
Tool Tip Icon
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
Tool Tip Icon
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
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.
0.66 Carat Marquise Diamond
Video play badge
Natural
BEST VALUE
Add To List
Add To Compare
Save for later

$674.00 $702.00
0.66Carat
KColor
SI1Clarity
VGCut
Get an in depth analysis of this diamond.

0.70 Carat Marquise Diamond
Video play badge
Natural
BEST VALUE
Add To List
Add To Compare
Save for later

$730.00 $760.00
0.7Carat
KColor
VS2Clarity
VGCut
Get an in depth analysis of this diamond.

1.01 Carat Marquise Diamond
Video play badge
Natural
BEST VALUE
Add To List
Add To Compare
Save for later

$1,662.00 $1,731.00
1.01Carat
KColor
SI1Clarity
VGCut
Get an in depth analysis of this diamond.

1.01 Carat Marquise Diamond
Video play badge
Natural
BEST VALUE
Add To List
Add To Compare
Save for later

$1,701.00 $1,772.00
1.01Carat
KColor
SI1Clarity
VGCut
Get an in depth analysis of this diamond.

1.07 Carat Marquise Diamond
Video play badge
Natural
BEST VALUE
Add To List
Add To Compare
Save for later

$2,537.00 $2,643.00
1.07Carat
KColor
VS2Clarity
VGCut
Get an in depth analysis of this diamond.

1.60 Carat Marquise Diamond
Video play badge
Natural
BEST VALUE
Add To List
Add To Compare
Save for later

$4,716.00 $4,913.00
1.6Carat
KColor
SI1Clarity
VGCut
Get an in depth analysis of this diamond.

1.51 Carat Marquise Diamond
Video play badge
Natural
BEST VALUE
Add To List
Add To Compare
Save for later

$4,903.00 $5,107.00
1.51Carat
KColor
SI1Clarity
VGCut
Get an in depth analysis of this diamond.

0.53 Carat Marquise Diamond
Video play badge
Natural
BEST VALUE
Add To List
Add To Compare
Save for later

$702.00 $731.00
0.53Carat
KColor
VS2Clarity
VGCut
Get an in depth analysis of this diamond.

0.70 Carat Marquise Diamond
Video play badge
Natural
BEST VALUE
Add To List
Add To Compare
Save for later

$807.00 $841.00
0.7Carat
KColor
SI1Clarity
VGCut
Get an in depth analysis of this diamond.

0.70 Carat Marquise Diamond
Video play badge
Natural
BEST VALUE
Add To List
Add To Compare
Save for later

$891.00 $928.00
0.7Carat
KColor
VS2Clarity
VGCut
Get an in depth analysis of this diamond.

1.00 Carat Marquise Diamond
Video play badge
Natural
BEST VALUE
Add To List
Add To Compare
Save for later

$1,562.00 $1,627.00
1Carat
KColor
VS2Clarity
VGCut
Get an in depth analysis of this diamond.

1.01 Carat Marquise Diamond
Video play badge
Natural
BEST VALUE
Add To List
Add To Compare
Save for later

$1,649.00 $1,718.00
1.01Carat
KColor
SI1Clarity
VGCut
Get an in depth analysis of this diamond.

1.01 Carat Marquise Diamond
Video play badge
Natural
BEST VALUE
Add To List
Add To Compare
Save for later

$1,664.00 $1,733.00
1.01Carat
KColor
SI1Clarity
VGCut
Get an in depth analysis of this diamond.

1.00 Carat Marquise Diamond
Video play badge
Natural
BEST VALUE
Add To List
Add To Compare
Save for later

$1,726.00 $1,798.00
1Carat
KColor
SI1Clarity
VGCut
Get an in depth analysis of this diamond.

1.01 Carat Marquise Diamond
Video play badge
Natural
BEST VALUE
Add To List
Add To Compare
Save for later

$2,191.00 $2,282.00
1.01Carat
KColor
VS1Clarity
VGCut
Get an in depth analysis of this diamond.

1.20 Carat Marquise Diamond
Video play badge
Natural
BEST VALUE
Add To List
Add To Compare
Save for later

$2,234.00 $2,327.00
1.2Carat
KColor
VS2Clarity
VGCut
Get an in depth analysis of this diamond.

1.20 Carat Marquise Diamond
Video play badge
Natural
BEST VALUE
Add To List
Add To Compare
Save for later

$2,589.00 $2,697.00
1.2Carat
KColor
VS2Clarity
VGCut
Get an in depth analysis of this diamond.

1.20 Carat Marquise Diamond
Video play badge
Natural
BEST VALUE
Add To List
Add To Compare
Save for later

$3,426.00 $3,569.00
1.2Carat
KColor
VS2Clarity
VGCut
Get an in depth analysis of this diamond.

1.50 Carat Marquise Diamond
Video play badge
Natural
BEST VALUE
Add To List
Add To Compare
Save for later

$4,063.00 $4,232.00
1.5Carat
KColor
VS2Clarity
VGCut
Get an in depth analysis of this diamond.

1.60 Carat Marquise Diamond
Video play badge
Natural
BEST VALUE
Add To List
Add To Compare
Save for later

$5,083.00 $5,295.00
1.6Carat
KColor
VS2Clarity
VGCut
Get an in depth analysis of this diamond.

5.09 Carat Marquise Diamond
Video play badge
Natural
BEST VALUE
Add To List
Add To Compare
Save for later

$67,862.00 $70,690.00
5.09Carat
KColor
VS2Clarity
VGCut
Get an in depth analysis of this diamond.

0.70 Carat Marquise Diamond
Video play badge
Natural
BEST VALUE
Add To List
Add To Compare
Save for later

$749.00 $780.00
0.7Carat
KColor
SI2Clarity
VGCut
Get an in depth analysis of this diamond.

0.74 Carat Marquise Diamond
Video play badge
Natural
BEST VALUE
Add To List
Add To Compare
Save for later

$790.00 $823.00
0.74Carat
KColor
SI2Clarity
VGCut
Get an in depth analysis of this diamond.

1.00 Carat Marquise Diamond
Video play badge
Natural
BEST VALUE
Add To List
Add To Compare
Save for later

$1,805.00 $1,880.00
1Carat
KColor
SI1Clarity
VGCut
Get an in depth analysis of this diamond.

You’ve viewed 24 of 159 products

Shop our beautiful collection of Marquise Cut K Color 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.

Marquise Cut K Color Diamonds

Shape

The marquise cut, somewhat similar to oval and pear shaped diamonds, has pointed ends and elegant, curved sides. It is the diamond shape with the largest surface area of all popular cuts, which means that you can find a larger-looking diamond for the same value.

The marquise cut diamond is a great choice for an engagement ring if you are looking for a diamond that will elongate your finger. King Louis XIV of France, who wanted a new diamond shape for the woman he loved – Marquise de Pompadour - commissioned the marquise cut. It is said that he wanted the diamond to be reminiscent of her smile. Because of this, the marquise shape has very romantic connotations.

If you are looking to make your marquise cut diamond appear larger, try a halo setting. Or let this unique cut stand out in a solitaire setting.

Because the marquise cut diamond has pointed ends, it is prone to chipping. Be sure to choose a setting that will protect the pointed ends.

Color

K color diamonds are in the faint color range on the GIA color scale. These diamonds will have a slight yellow tint to them and will therefore have the cheapest prices. K color diamonds can look great when set in yellow gold since the metal will complement the color of the diamond.

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 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!

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 Marquise Cut K Color Diamonds, reach out to us at 1-888-9RITANI or chat now.

Frequently Asked Questions

  • How much does a Marquise Cut K Color Diamond cost?
    arrow

    A Marquise Cut K Color Diamond can cost anywhere between $340 and $11,000 depending on the 4 cs. The median price is $800.