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Marquise|Lab Grown|IGI

0.30ct G SI1 Marquise Lab Grown Diamond

ID • G/SI1 • IGI LG542231875

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG542231875

Diamond specifications and retailer prices

From $119 CAD
$85 USD
As of October 30, 2026
Save $353 CAD (75%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,084 CAD at MOH London · As of October 21, 2026
View at MOH London

About this 0.3ct lab-grown marquise diamond

This 0.3ct lab-grown marquise sits in the sub-half-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG542231875 or 542231875. Listed at 12 retailers as of October 30, 2026, with a 298% 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

0.30
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG542231875
Dimensions6.84 × 3.59 × 2.15 mm
L/W Ratio1.91
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
6.84 mm3.59 mm0.30 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG542231875
Side View
Table 63.5%Crown 32.9°Girdle: THN-MEDPavilion 39.5°Culet: NoneDepth 59.9%

Caratlytics Score

How it works →
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: Oct 30
Current: $1,084 CAD|Low: $113 CAD|High: $1,091 CAD|Avg: $359 CAD|+0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 6$119 CAD
Retailer 10$137 CAD
Retailer 7$156 CAD
Retailer 11$156 CAD
Retailer 4$237 CAD
Retailer 2$265 CAD
Retailer 9$316 CAD
Retailer 5$377 CAD
Retailer 3$461 CAD
Retailer 8$472 CAD
MOH London$1,084 CAD

44 data points across 11 retailers

12 retailers$119 CAD to $472 CAD

A
Cheapest Retailer
-
$119 CAD
$85 USD
A
Retailer 2
-
$137 CAD
$98 USD
View
Retailer 3
-
$156 CAD
$112 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
$156 CAD
$112 USD
View
B+
Retailer 5
-
$237 CAD
$170 USD
View
B+
Retailer 6
-
$265 CAD
£149 GBP
View
B+
Retailer 7
-
$304 CAD
HK$1,700 HKD
View
B+
Retailer 8
-
$316 CAD
$226 USD
View
B+
Retailer 9
-
$377 CAD
£212 GBP
View
B
Retailer 10
-
$461 CAD
$330 USD
View
B
Retailer 11
-
$472 CAD
$338 USD
View
Most Expensive
MOH London
LG542231875 · Oct 21
$1,084 CAD
£611 GBP
View
Price under review
11 more retailers have this diamond
Prices start from $119 CADSave up to $353 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
0.30ct Marquise
$119 CAD