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Cushion|Natural|GIA

3.51ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 2557628032

Certificate GIA 2557628032

Diamond specifications and retailer prices

From HK$411,362 HKD
As of November 5, 2026
Save HK$263,953 HKD (39%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$675,315 HKD at MOH London · As of November 7, 2026
View at MOH London

About this 3.51ct natural cushion diamond

This 3.51ct natural cushion sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557628032. Listed at 13 retailers as of November 5, 2026, with prices from HK$411,362 to HK$675,315, a HK$263,953 spread on the same certified stone. MOH London lists it at HK$675,315. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.51
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557628032
Dimensions9.61 × 7.78 × 5.42 mm
L/W Ratio1.24
Culet sizeNone
Top View
9.61 mm7.78 mm3.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557628032
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 69.7%

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 5
Current: HK$675,315 HKD|Low: HK$417,530 HKD|High: HK$687,130 HKD|Avg: HK$494,113 HKD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 10HK$417,530 HKD
Retailer 7HK$425,845 HKD
Retailer 9HK$425,845 HKD
Retailer 6HK$438,534 HKD
Retailer 2HK$438,957 HKD
Retailer 11HK$461,333 HKD
Retailer 3HK$487,941 HKD
Retailer 8HK$514,737 HKD
Retailer 4HK$516,681 HKD
Retailer 5HK$522,911 HKD
MOH LondonHK$675,315 HKD

44 data points across 11 retailers

13 retailersHK$411,362 HKD to HK$675,315 HKD

B+
Cheapest Retailer
-
HK$411,362 HKD
B+
Retailer 2
-
HK$417,530 HKD
View
B+
Retailer 3
-
HK$425,845 HKD
View
B+
Retailer 4
-
HK$425,845 HKD
View
B+
Retailer 5
-
HK$438,534 HKD
View
B+
Retailer 6
-
HK$438,957 HKD
View
B+
Retailer 7
-
HK$461,333 HKD
View
B+
Retailer 8
-
HK$487,941 HKD
View
B+
Retailer 9
-
HK$496,821 HKD
View
B+
Retailer 10
-
HK$514,737 HKD
View
B
Retailer 11
-
HK$516,681 HKD
View
B
Retailer 12
-
HK$522,911 HKD
View
Most Expensive
B
MOH London
F8CAE04A5 · Nov 7
HK$675,315 HKD
£67,847 GBP
View
12 more retailers have this diamond
Prices start from HK$411,362 HKDSave up to HK$263,953 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+
3.51ct Cushion
HK$411,362 HKD