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Cushion|Natural|GIA

0.51ct E IF Cushion Natural Diamond

GD • E/IF • GIA 6555370030

Certificate GIA 6555370030

Diamond specifications and retailer prices

From €547 EUR
MYR 2,490 MYR
As of October 30, 2026
Save €152 EUR (22%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €699 EUR at Blue Nile · As of October 31, 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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6555370030. Listed at 5 retailers as of October 30, 2026, with prices from €547 to €699, a €152 spread on the same certified stone. Blue Nile lists it at €699. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
E
Color
IF
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555370030
Dimensions4.50 × 4.41 × 2.98 mm
L/W Ratio1.02
Culet sizeNone
Key to symbols
Minor Details of Polish
Top View
4.50 mm4.41 mm0.51 ctE / IF
OriginNatural
CutGood
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 6555370030
Side View
Table 64.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 67.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €699 EUR|Low: €475 EUR|High: €747 EUR|Avg: €615 EUR|-6.5%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 5€547 EUR
Retailer 4€554 EUR
Retailer 3€615 EUR
Retailer 2€682 EUR
Blue Nile€699 EUR

40 data points across 5 retailers

5 retailers€547 EUR to €699 EUR

A
Cheapest Retailer
-
€547 EUR
MYR 2,490 MYR
A
Retailer 2
-
€554 EUR
$619 USD
View
Final sale: no returns
A
Retailer 3
-
€615 EUR
SGD 929 SGD
View
B+
Retailer 4
-
€682 EUR
£600 GBP
View
Most Expensive
A
Blue Nile
29230193 · Oct 31
€699 EUR
$781 USD
View
4 more retailers have this diamond
Prices start from €547 EURSave up to €152 EUR

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
€547 EUR