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Cushion|Natural|GIA

0.51ct E IF Cushion Natural Diamond

EX • E/IF • GIA 5513115951

Certificate GIA 5513115951

Diamond specifications and retailer prices

From $775 AUD
As of November 4, 2026
Save $222 AUD (22%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $998 AUD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5513115951. Listed at 5 retailers as of November 4, 2026, with prices from $775 to $998, a $222 spread on the same certified stone. Brilliant Earth lists it at $998. 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
E
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5513115951
Dimensions4.73 × 4.46 × 2.80 mm
L/W Ratio1.06
Top View
4.73 mm4.46 mm0.51 ctE / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5513115951
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 62.9%

Caratlytics Score

How it works →
A+
Exceptional
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: Nov 4
Current: $998 AUD|Low: $687 AUD|High: $1,112 AUD|Avg: $894 AUD|-10.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 5, 2026
Retailer 5$775 AUD
Retailer 4$791 AUD
Retailer 3$875 AUD
Retailer 2$959 AUD
Brilliant Earth$998 AUD

42 data points across 5 retailers

5 retailers$775 AUD to $998 AUD

A+
Cheapest Retailer
-
$775 AUD
A
Retailer 2
-
$791 AUD
View
Final sale: no returns
A
Retailer 3
-
$875 AUD
View
A
Retailer 4
-
$959 AUD
View
Most Expensive
A
Brilliant Earth
20139650A · Nov 4
$998 AUD
$700 USD
View
4 more retailers have this diamond
Prices start from $775 AUDSave up to $222 AUD

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
$775 AUD