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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 HK$4,833 HKD
As of November 4, 2026
Save HK$1,342 HKD (22%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: HK$6,174 HKD 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 HK$4,833 to HK$6,174, a HK$1,342 spread on the same certified stone. Blue Nile lists it at HK$6,174. 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

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: Nov 4
Current: HK$6,174 HKD|Low: HK$4,315 HKD|High: HK$6,888 HKD|Avg: HK$5,599 HKD|-10.4%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 5, 2026
Retailer 5HK$4,833 HKD
Retailer 4HK$4,895 HKD
Retailer 3HK$5,445 HKD
Retailer 6HK$5,962 HKD
Retailer 2HK$5,970 HKD
Blue NileHK$6,174 HKD

41 data points across 6 retailers

5 retailersHK$4,833 HKD to HK$6,174 HKD

A
Cheapest Retailer
-
HK$4,833 HKD
A
Retailer 2
-
HK$4,895 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$5,445 HKD
View
A
Retailer 4
-
HK$5,970 HKD
View
Most Expensive
A
Blue Nile
27899206 · Nov 5
HK$6,174 HKD
$787 USD
View
4 more retailers have this diamond
Prices start from HK$4,833 HKDSave up to HK$1,342 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$4,833 HKD