Cushion|Natural|GIA

0.51ct D IF Cushion Natural Diamond

EX • D/IF • GIA 1548430081

Certificate GIA 1548430081

Diamond specifications and retailer prices

From $616 USD
As of November 4, 2026
Save $171 USD (22%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $787 USD at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 0.51ct natural cushion diamond

This 0.51ct natural cushion sits in the half to three-quarter carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1548430081. Listed at 5 retailers as of November 4, 2026, with prices from $616 to $787, a $171 spread on the same certified stone. Blue Nile lists it at $787. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
D
Color
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1548430081
Dimensions4.39 × 4.37 × 3.00 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Minor Details of Polish
Top View
4.39 mm4.37 mm0.51 ctD / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1548430081
Side View
Table 60.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: $787 USD|Low: $550 USD|High: $878 USD|Avg: $714 USD|-10.4%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 5, 2026
Retailer 5$616 USD
Retailer 4$624 USD
Retailer 3$694 USD
Retailer 6$760 USD
Retailer 2$761 USD
Blue Nile$787 USD

41 data points across 6 retailers

5 retailers$616 USD to $787 USD

A
Cheapest Retailer
-
$616 USD
A
Retailer 2
-
$624 USD
View
Final sale: no returns
A
Retailer 3
-
$694 USD
View
A
Retailer 4
-
$761 USD
View
Most Expensive
A
Blue Nile
27899206 · Nov 5
$787 USD
View
4 more retailers have this diamond
Prices start from $616 USDSave up to $171 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
0.51ct Cushion
$616 USD