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Cushion|Lab Grown|IGI

3.50ct H SI1 Cushion Lab Grown Diamond

ID • H/SI1 • IGI LG522237367

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG522237367

Diamond specifications and retailer prices

From HK$18,183 HKD
As of November 6, 2026
Save HK$78,962 HKD (81%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$138,652 HKD at MOH London · As of November 5, 2026
View at MOH London

About this 3.5ct lab-grown cushion diamond

This 3.5ct lab-grown cushion sits in the three to five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG522237367 or 522237367. Listed at 7 retailers as of November 6, 2026, with a 434% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle32.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG522237367
Dimensions8.92 × 8.18 × 5.30 mm
L/W Ratio1.09
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.92 mm8.18 mm3.50 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG522237367
Side View
Table 61.0%Crown 36.3°Girdle: THK-VTKPavilion 32.5°Culet: NoneDepth 64.8%

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$138,652 HKD|Low: HK$18,183 HKD|High: HK$140,892 HKD|Avg: HK$81,832 HKD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 3HK$18,183 HKD
Retailer 10HK$63,890 HKD
Retailer 6HK$73,726 HKD
Retailer 7HK$75,709 HKD
Retailer 5HK$76,360 HKD
Retailer 8HK$78,092 HKD
Retailer 4HK$88,351 HKD
Retailer 2HK$97,145 HKD
Retailer 9HK$98,375 HKD
MOH LondonHK$138,652 HKD

39 data points across 10 retailers

7 retailersHK$18,183 HKD to HK$97,145 HKD

B+
Cheapest Retailer
-
HK$18,183 HKD
B
Retailer 2
-
HK$73,726 HKD
View
Final sale: no returns
B
Retailer 3
-
HK$75,709 HKD
View
Retailer 4
-
HK$76,360 HKD
View
Price last confirmed 26 days ago
B
Retailer 5
-
HK$88,351 HKD
View
B
Retailer 6
-
HK$97,145 HKD
View
Most Expensive
MOH London
LG522237367 · Nov 5
HK$138,652 HKD
£13,930 GBP
View
Price under review
6 more retailers have this diamond
Prices start from HK$18,183 HKDSave up to HK$78,962 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$18,183 HKD