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Cushion|Natural|GIA

3.50ct E SI1 Cushion Natural Diamond

ID • E/SI1 • GIA 2566103106

Certificate GIA 2566103106

Diamond specifications and retailer prices

From HK$432,530 HKD
As of November 6, 2026
Save HK$302,426 HKD (41%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$734,956 HKD at MOH London · As of November 4, 2026
View at MOH London

About this 3.5ct natural cushion diamond

This 3.5ct 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 2566103106. Listed at 19 retailers as of November 4, 2026, with prices from HK$432,530 to HK$734,956, a HK$302,426 spread on the same certified stone. MOH London lists it at HK$734,956. 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

3.50
Carat
E
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2566103106
Dimensions11.78 × 7.37 × 4.96 mm
L/W Ratio1.60
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Indented Natural, Needle
Top View
11.78 mm7.37 mm3.50 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2566103106
Side View
Table 67.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 67.3%

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$734,956 HKD|Low: HK$424,215 HKD|High: HK$755,072 HKD|Avg: HK$517,859 HKD|-2.7%
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
Retailer 14
Retailer 15
Retailer 16
November 7, 2026
Retailer 7HK$425,171 HKD
Retailer 4HK$432,530 HKD
Retailer 8HK$444,349 HKD
Retailer 10HK$460,055 HKD
Retailer 9HK$471,357 HKD
Retailer 2HK$471,631 HKD
Retailer 6HK$475,417 HKD
Retailer 14HK$490,935 HKD
Retailer 16HK$490,935 HKD
Retailer 13HK$502,072 HKD
Retailer 3HK$504,768 HKD
Retailer 15HK$507,315 HKD
Retailer 11HK$569,277 HKD
Retailer 5HK$603,080 HKD
Retailer 12HK$607,469 HKD
MOH LondonHK$734,956 HKD

34 data points across 16 retailers

19 retailersHK$432,530 HKD to HK$734,956 HKD

Retailer 1
-
HK$401,776 HKD
Price last confirmed 30 days ago
B+
Retailer 2
-
HK$432,530 HKD
View
Final sale: no returns
Retailer 3
-
HK$444,224 HKD
View
Price last confirmed 37 days ago
Retailer 4
-
HK$444,349 HKD
View
Price last confirmed 34 days ago
Retailer 5
-
HK$447,108 HKD
View
Price last confirmed 37 days ago
B+
Retailer 6
-
HK$460,055 HKD
View
B+
Retailer 7
-
HK$471,357 HKD
View
B
Retailer 8
-
HK$471,631 HKD
View
Retailer 9
-
HK$475,417 HKD
View
Price last confirmed 22 days ago
B+
Retailer 10
-
HK$490,935 HKD
View
B+
Retailer 11
-
HK$490,935 HKD
View
B+
Retailer 12
-
HK$502,072 HKD
View
B+
Retailer 13
-
HK$502,957 HKD
View
B+
Retailer 14
-
HK$504,768 HKD
View
B+
Retailer 15
-
HK$507,315 HKD
View
B
Retailer 16
-
HK$569,277 HKD
View
Retailer 17
-
HK$603,080 HKD
View
Price last confirmed 10 days ago
B
Retailer 18
-
HK$607,469 HKD
View
Most Expensive
B
MOH London
635F530BF · Nov 4
HK$734,956 HKD
£73,839 GBP
View
18 more retailers have this diamond
Prices start from HK$432,530 HKDSave up to HK$302,426 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+
3.50ct Cushion
HK$432,530 HKD