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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 HK$4,268 HKD
As of November 4, 2026
Save HK$1,224 HKD (22%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: HK$5,492 HKD 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 HK$4,268 to HK$5,492, a HK$1,224 spread on the same certified stone. Brilliant Earth lists it at HK$5,492. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: HK$5,492 HKD|Low: HK$3,782 HKD|High: HK$6,120 HKD|Avg: HK$4,922 HKD|-10.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 5, 2026
Retailer 5HK$4,268 HKD
Retailer 4HK$4,354 HKD
Retailer 3HK$4,817 HKD
Retailer 2HK$5,280 HKD
Brilliant EarthHK$5,492 HKD

42 data points across 5 retailers

5 retailersHK$4,268 HKD to HK$5,492 HKD

A+
Cheapest Retailer
-
HK$4,268 HKD
A
Retailer 2
-
HK$4,354 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$4,817 HKD
View
A
Retailer 4
-
HK$5,280 HKD
View
Most Expensive
A
Brilliant Earth
20139650A · Nov 4
HK$5,492 HKD
$700 USD
View
4 more retailers have this diamond
Prices start from HK$4,268 HKDSave up to HK$1,224 HKD

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
HK$4,268 HKD