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Marquise|Lab Grown|IGI

0.30ct G SI1 Marquise Lab Grown Diamond

ID • G/SI1 • IGI LG538298040

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG538298040

Diamond specifications and retailer prices

From $121 AUD
$85 USD
As of November 2, 2026
Save $361 AUD (75%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,102 AUD at MOH London · As of November 1, 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 LG538298040 or 538298040. Listed at 12 retailers as of October 31, 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
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.8°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG538298040
Dimensions7.19 × 3.34 × 2.12 mm
L/W Ratio2.15
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
7.19 mm3.34 mm0.30 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG538298040
Side View
Table 60.0%Crown 34.8°Girdle: MED-VTKPavilion 40.3°Culet: NoneDepth 63.5%

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: Nov 2
Current: $1,102 AUD|Low: $116 AUD|High: $1,114 AUD|Avg: $367 AUD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 6$121 AUD
Retailer 10$140 AUD
Retailer 7$160 AUD
Retailer 11$160 AUD
Retailer 4$243 AUD
Retailer 2$271 AUD
Retailer 9$322 AUD
Retailer 5$385 AUD
Retailer 3$471 AUD
Retailer 8$482 AUD
MOH London$1,102 AUD

43 data points across 11 retailers

12 retailers$121 AUD to $482 AUD

A
Cheapest Retailer
-
$121 AUD
$85 USD
A
Retailer 2
-
$140 AUD
$98 USD
View
Retailer 3
-
$160 AUD
$112 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$160 AUD
$112 USD
View
B+
Retailer 5
-
$243 AUD
$170 USD
View
B+
Retailer 6
-
$271 AUD
£149 GBP
View
B+
Retailer 7
-
$322 AUD
$226 USD
View
B
Retailer 8
-
$385 AUD
£212 GBP
View
B
Retailer 9
-
$457 AUD
HK$2,500 HKD
View
B
Retailer 10
-
$471 AUD
$330 USD
View
B
Retailer 11
-
$482 AUD
$338 USD
View
Most Expensive
MOH London
LG538298040 · Nov 1
$1,102 AUD
£608 GBP
View
Price under review
11 more retailers have this diamond
Prices start from $121 AUDSave up to $361 AUD

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
$121 AUD