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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 $151 NZD
$85 USD
As of November 2, 2026
Save $450 NZD (75%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,379 NZD 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 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
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $1,379 NZD|Low: $144 NZD|High: $1,388 NZD|Avg: $457 NZD|+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 2, 2026
Retailer 6$151 NZD
Retailer 10$174 NZD
Retailer 7$199 NZD
Retailer 11$199 NZD
Retailer 4$302 NZD
Retailer 2$337 NZD
Retailer 9$402 NZD
Retailer 5$479 NZD
Retailer 3$587 NZD
Retailer 8$601 NZD
MOH London$1,379 NZD

44 data points across 11 retailers

12 retailers$151 NZD to $601 NZD

A
Cheapest Retailer
-
$151 NZD
$85 USD
A
Retailer 2
-
$174 NZD
$98 USD
View
Retailer 3
-
$199 NZD
$112 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$199 NZD
$112 USD
View
B+
Retailer 5
-
$302 NZD
$170 USD
View
B+
Retailer 6
-
$337 NZD
£149 GBP
View
B+
Retailer 7
-
$387 NZD
HK$1,700 HKD
View
B+
Retailer 8
-
$402 NZD
$226 USD
View
B+
Retailer 9
-
$479 NZD
£212 GBP
View
B
Retailer 10
-
$587 NZD
$330 USD
View
B
Retailer 11
-
$601 NZD
$338 USD
View
Most Expensive
MOH London
LG542231875 · Oct 21
$1,379 NZD
£611 GBP
View
Price under review
11 more retailers have this diamond
Prices start from $151 NZDSave up to $450 NZD

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
$151 NZD