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Cushion|Lab Grown|IGI

1.55ct E SI1 Cushion Lab Grown Diamond

GD • E/SI1 • IGI LG821628425

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG821628425

Diamond specifications and retailer prices

From HK$2,999 HKD
€364 EUR
As of October 29, 2026
Save HK$5,132 HKD (63%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: HK$8,131 HKD at MOH London · As of October 29, 2026
View at MOH London

About this 1.55ct lab-grown cushion diamond

This 1.55ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG821628425 or 821628425. Listed at 5 retailers as of October 29, 2026, with prices from HK$2,999 to HK$8,131, a HK$5,132 spread on the same certified stone. MOH London lists it at HK$8,131. 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

1.55
Carat
E
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821628425
Dimensions8.21 × 5.98 × 3.99 mm
L/W Ratio1.37
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.21 mm5.98 mm1.55 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821628425
Side View
Table 62.0%Crown 34.6°Girdle: MED-STKPavilion 37.6°Culet: NoneDepth 66.7%

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: Oct 29
Current: HK$8,131 HKD|Low: HK$2,226 HKD|High: HK$8,619 HKD|Avg: HK$5,355 HKD|-4.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 29, 2026
Retailer 3HK$2,226 HKD
Retailer 2HK$2,999 HKD
Retailer 4HK$4,370 HKD
Retailer 5HK$7,298 HKD
MOH LondonHK$8,131 HKD

22 data points across 5 retailers

5 retailersHK$2,999 HKD to HK$8,131 HKD

Retailer 1
-
HK$2,226 HKD
£223 GBP
Price last confirmed 13 days ago
A
Retailer 2
-
HK$2,999 HKD
€364 EUR
View
B+
Retailer 3
-
HK$4,370 HKD
$557 USD
View
Retailer 4
-
HK$7,298 HKD
SGD 1,257 SGD
View
Price last confirmed 17 days ago
Most Expensive
B
MOH London
LG821628425 · Oct 29
HK$8,131 HKD
£816 GBP
View
4 more retailers have this diamond
Prices start from HK$2,999 HKDSave up to HK$5,132 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
1.55ct Cushion
HK$2,999 HKD