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Cushion|Natural|GIA

0.51ct D SI1 Cushion Natural Diamond

VG • D/SI1 • GIA 6421683223

Certificate GIA 6421683223

Diamond specifications and retailer prices

From HK$6,270 HKD
As of November 6, 2026
Save HK$6,869 HKD (52%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$13,139 HKD at MOH London · As of November 4, 2026
View at MOH London

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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6421683223. Listed at 16 retailers as of November 4, 2026, with prices from HK$6,270 to HK$13,139, a HK$6,869 spread on the same certified stone. MOH London lists it at HK$13,139. 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
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6421683223
Dimensions4.68 × 4.18 × 2.92 mm
L/W Ratio1.12
Top View
4.68 mm4.18 mm0.51 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6421683223
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 69.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: HK$13,139 HKD|Low: HK$6,873 HKD|High: HK$13,318 HKD|Avg: HK$9,341 HKD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 5HK$7,171 HKD
Retailer 9HK$7,226 HKD
Retailer 4HK$7,250 HKD
Retailer 8HK$7,359 HKD
Retailer 6HK$8,543 HKD
Retailer 10HK$9,507 HKD
Retailer 2HK$10,298 HKD
Retailer 7HK$11,059 HKD
Retailer 3HK$11,349 HKD
MOH LondonHK$13,139 HKD

45 data points across 10 retailers

16 retailersHK$6,270 HKD to HK$13,139 HKD

B+
Cheapest Retailer
-
HK$6,270 HKD
Retailer 2
-
HK$7,171 HKD
View
Price last confirmed 17 days ago
B
Retailer 3
-
HK$7,195 HKD
View
B
Retailer 4
-
HK$7,226 HKD
View
B
Retailer 5
-
HK$7,250 HKD
View
Retailer 6
-
HK$7,359 HKD
View
Price last confirmed 9 days ago
B
Retailer 7
-
HK$7,430 HKD
View
B
Retailer 8
-
HK$7,759 HKD
View
B
Retailer 9
-
HK$7,759 HKD
View
B
Retailer 10
-
HK$8,073 HKD
View
B
Retailer 11
-
HK$8,394 HKD
View
B
Retailer 12
-
HK$8,543 HKD
View
B
Retailer 13
-
HK$10,298 HKD
View
Retailer 14
-
HK$11,059 HKD
View
Price last confirmed 33 days ago
B
Retailer 15
-
HK$11,349 HKD
View
Most Expensive
B
MOH London
D98507D3B · Nov 4
HK$13,139 HKD
£1,320 GBP
View
15 more retailers have this diamond
Prices start from HK$6,270 HKDSave up to HK$6,869 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.

B+
0.51ct Cushion
HK$6,270 HKD