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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 $212 CAD
$152 USD
As of November 1, 2026
Save $939 CAD (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,151 CAD at MOH London · As of October 26, 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 October 26, 2026, with prices from $212 to $1,151, a $939 spread on the same certified stone. MOH London lists it at $1,151. 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
Color
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

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $1,151 CAD|Low: $166 CAD|High: $1,164 CAD|Avg: $462 CAD|+0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 7$166 CAD
Retailer 6$212 CAD
Retailer 2$291 CAD
Retailer 3$298 CAD
Retailer 4$377 CAD
Retailer 5$378 CAD
Retailer 8$534 CAD
Retailer 9$588 CAD
MOH London$1,151 CAD

44 data points across 9 retailers

10 retailers$212 CAD to $1,151 CAD

Retailer 1
-
$166 CAD
$119 USD
Price last confirmed 7 days ago
B+
Retailer 2
-
$212 CAD
$152 USD
View
A
Retailer 3
-
$291 CAD
£164 GBP
View
A
Retailer 4
-
$298 CAD
€203 EUR
View
A
Retailer 5
-
$377 CAD
$270 USD
View
A
Retailer 6
-
$378 CAD
£213 GBP
View
B+
Retailer 7
-
$497 CAD
£280 GBP
View
Retailer 8
-
$534 CAD
SGD 517 SGD
View
Price last confirmed 20 days ago
B+
Retailer 9
-
$588 CAD
$421 USD
View
Most Expensive
B
MOH London
LG578315825 · Oct 26
$1,151 CAD
£649 GBP
View
9 more retailers have this diamond
Prices start from $212 CADSave up to $939 CAD

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
$212 CAD