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Cushion|Natural|GIA

0.51ct D IF Cushion Natural Diamond

EX • D/IF • GIA 1548430081

Certificate GIA 1548430081

Diamond specifications and retailer prices

From $1,096 NZD
As of November 4, 2026
Save $304 NZD (22%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,400 NZD 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 $1,096 to $1,400, a $304 spread on the same certified stone. Blue Nile lists it at $1,400. 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
Colour
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: $1,400 NZD|Low: $978 NZD|High: $1,562 NZD|Avg: $1,270 NZD|-10.4%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 5, 2026
Retailer 5$1,096 NZD
Retailer 4$1,110 NZD
Retailer 3$1,235 NZD
Retailer 6$1,352 NZD
Retailer 2$1,354 NZD
Blue Nile$1,400 NZD

41 data points across 6 retailers

5 retailers$1,096 NZD to $1,400 NZD

A
Cheapest Retailer
-
$1,096 NZD
A
Retailer 2
-
$1,110 NZD
View
Final sale: no returns
A
Retailer 3
-
$1,235 NZD
View
A
Retailer 4
-
$1,354 NZD
View
Most Expensive
A
Blue Nile
27899206 · Nov 5
$1,400 NZD
$787 USD
View
4 more retailers have this diamond
Prices start from $1,096 NZDSave up to $304 NZD

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
$1,096 NZD