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Cushion|Lab Grown|IGI

0.55ct G SI1 Cushion Lab Grown Diamond

ID • G/SI1 • IGI LG578315825

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG578315825

Diamond specifications and retailer prices

From HK$1,193 HKD
$152 USD
As of November 1, 2026
Save HK$5,264 HKD (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$6,457 HKD at MOH London · As of November 2, 2026
View at MOH London

About this 0.55ct lab-grown cushion diamond

This 0.55ct lab-grown cushion sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG578315825 or 578315825. Listed at 10 retailers as of November 1, 2026, with prices from HK$1,193 to HK$6,457, a HK$5,264 spread on the same certified stone. MOH London lists it at HK$6,457. 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

0.55
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG578315825
Dimensions4.96 × 4.73 × 3.03 mm
L/W Ratio1.05
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
4.96 mm4.73 mm0.55 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG578315825
Side View
Table 62.0%Crown 34.3°Girdle: MED-STKPavilion 39.2°Culet: NoneDepth 64.1%

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: Nov 1
Current: HK$6,457 HKD|Low: HK$934 HKD|High: HK$6,537 HKD|Avg: HK$2,602 HKD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 7HK$934 HKD
Retailer 6HK$1,193 HKD
Retailer 2HK$1,634 HKD
Retailer 3HK$1,672 HKD
Retailer 4HK$2,118 HKD
Retailer 5HK$2,121 HKD
Retailer 8HK$3,002 HKD
Retailer 9HK$3,303 HKD
MOH LondonHK$6,457 HKD

43 data points across 9 retailers

10 retailersHK$1,193 HKD to HK$6,457 HKD

Retailer 1
-
HK$934 HKD
$119 USD
Price last confirmed 8 days ago
B+
Retailer 2
-
HK$1,193 HKD
$152 USD
View
A
Retailer 3
-
HK$1,634 HKD
£164 GBP
View
A
Retailer 4
-
HK$1,672 HKD
€203 EUR
View
A
Retailer 5
-
HK$2,118 HKD
$270 USD
View
A
Retailer 6
-
HK$2,121 HKD
£213 GBP
View
B+
Retailer 7
-
HK$2,790 HKD
£280 GBP
View
Retailer 8
-
HK$3,002 HKD
SGD 517 SGD
View
Price last confirmed 21 days ago
B+
Retailer 9
-
HK$3,303 HKD
$421 USD
View
Most Expensive
B
MOH London
LG578315825 · Nov 2
HK$6,457 HKD
£648 GBP
View
9 more retailers have this diamond
Prices start from HK$1,193 HKDSave up to HK$5,264 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
0.55ct Cushion
HK$1,193 HKD