CaratHunter
Plans
Cushion|Lab Grown|IGI

1.63ct E SI2 Cushion Lab Grown Diamond

EX • E/SI2 • IGI LG494175221

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG494175221

Diamond specifications and retailer prices

From HK$3,731 HKD
£374 GBP
As of October 30, 2026
Save HK$7,978 HKD (68%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$11,709 HKD at MOH London · As of October 29, 2026
View at MOH London

About this 1.63ct lab-grown cushion diamond

This 1.63ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG494175221 or 494175221. Listed at 8 retailers as of October 29, 2026, with prices from HK$3,731 to HK$11,709, a HK$7,978 spread on the same certified stone. MOH London lists it at HK$11,709. 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

1.63
Carat
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.4°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG494175221
Dimensions6.80 × 6.47 × 4.74 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.80 mm6.47 mm1.63 ctE / SI2
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG494175221
Side View
Table 59.0%Crown 35.4°Girdle: STK-VTKPavilion 40.1°Culet: NoneDepth 73.3%

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 30
Current: HK$11,709 HKD|Low: HK$3,718 HKD|High: HK$11,789 HKD|Avg: HK$6,313 HKD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 2HK$3,731 HKD
Retailer 7HK$3,816 HKD
Retailer 8HK$3,829 HKD
Retailer 4HK$4,755 HKD
Retailer 6HK$4,975 HKD
Retailer 9HK$5,244 HKD
Retailer 3HK$7,807 HKD
Retailer 5HK$10,904 HKD
MOH LondonHK$11,709 HKD

34 data points across 9 retailers

8 retailersHK$3,731 HKD to HK$11,709 HKD

A
Cheapest Retailer
-
HK$3,731 HKD
£374 GBP
Retailer 2
-
HK$3,816 HKD
View
Price last confirmed 24 days ago
A
Retailer 3
-
HK$3,829 HKD
$488 USD
View
B+
Retailer 4
-
HK$4,755 HKD
$606 USD
View
B+
Retailer 5
-
HK$4,975 HKD
$634 USD
View
Retailer 6
-
HK$7,807 HKD
$995 USD
View
Price last confirmed 9 days ago
Retailer 7
-
HK$10,904 HKD
SGD 1,878 SGD
View
Price last confirmed 23 days ago
Most Expensive
B
MOH London
LG494175221 · Oct 29
HK$11,709 HKD
£1,175 GBP
View
7 more retailers have this diamond
Prices start from HK$3,731 HKDSave up to HK$7,978 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
1.63ct Cushion
HK$3,731 HKD