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Cushion|Natural|GIA

0.51ct D SI1 Cushion Natural Diamond

GD • D/SI1 • GIA 7511675994

Certificate GIA 7511675994

Diamond specifications and retailer prices

From HK$3,754 HKD
As of November 6, 2026
Save HK$7,732 HKD (67%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$11,486 HKD at MOH London · As of November 2, 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 7511675994. Listed at 14 retailers as of November 2, 2026, with prices from HK$3,754 to HK$11,486, a HK$7,732 spread on the same certified stone. MOH London lists it at HK$11,486. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7511675994
Dimensions5.73 × 4.07 × 2.93 mm
L/W Ratio1.41
Key to symbols
Crystal, Cloud
Top View
5.73 mm4.07 mm0.51 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7511675994
Side View
Table 62.0%CrownGirdle: ThickPavilionCulet: NoneDepth 71.9%

Caratlytics Score

How it works →
A
Excellent
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 6
Current: HK$11,486 HKD|Low: HK$3,754 HKD|High: HK$11,954 HKD|Avg: HK$6,634 HKD|-3.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 2HK$3,754 HKD
Retailer 5HK$4,311 HKD
Retailer 13HK$5,322 HKD
Retailer 10HK$5,353 HKD
Retailer 9HK$6,003 HKD
Retailer 7HK$6,058 HKD
Retailer 12HK$6,231 HKD
Retailer 11HK$6,427 HKD
Retailer 3HK$7,116 HKD
Retailer 4HK$7,156 HKD
Retailer 6HK$7,273 HKD
Retailer 8HK$7,673 HKD
MOH LondonHK$11,486 HKD

31 data points across 13 retailers

14 retailersHK$3,754 HKD to HK$11,486 HKD

A
Cheapest Retailer
-
HK$3,754 HKD
B+
Retailer 2
-
HK$4,311 HKD
View
Retailer 3
-
HK$5,322 HKD
View
Price last confirmed 11 days ago
Retailer 4
-
HK$5,353 HKD
View
Price last confirmed 9 days ago
B
Retailer 5
-
HK$6,003 HKD
View
B
Retailer 6
-
HK$6,058 HKD
View
B
Retailer 7
-
HK$6,231 HKD
View
B+
Retailer 8
-
HK$6,427 HKD
View
B
Retailer 9
-
HK$7,116 HKD
View
Retailer 10
-
HK$7,156 HKD
View
Price last confirmed 17 days ago
B
Retailer 11
-
HK$7,273 HKD
View
B
Retailer 12
-
HK$7,673 HKD
View
Retailer 13
-
HK$7,688 HKD
View
Price last confirmed 33 days ago
Most Expensive
B
MOH London
DE2A94A13 · Nov 2
HK$11,486 HKD
£1,154 GBP
View
13 more retailers have this diamond
Prices start from HK$3,754 HKDSave up to HK$7,732 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$3,754 HKD