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Marquise|Lab Grown|IGI

0.31ct G SI1 Marquise Lab Grown Diamond

ID • G/SI1 • IGI LG541286084

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG541286084

Diamond specifications and retailer prices

From $155 NZD
$87 USD
As of November 2, 2026
Save $459 NZD (75%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,402 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 0.31ct lab-grown marquise diamond

This 0.31ct 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 LG541286084 or 541286084. Listed at 12 retailers as of October 31, 2026, with a 297% 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

0.31
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle42.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG541286084
Dimensions7.36 × 3.33 × 2.19 mm
L/W Ratio2.21
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
7.36 mm3.33 mm0.31 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG541286084
Side View
Table 61.0%Crown 34.2°Girdle: MED-STKPavilion 42.3°Culet: NoneDepth 65.8%

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: $1,402 NZD|Low: $148 NZD|High: $1,420 NZD|Avg: $465 NZD|-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$155 NZD
Retailer 9$178 NZD
Retailer 10$203 NZD
Retailer 11$203 NZD
Retailer 4$302 NZD
Retailer 2$348 NZD
Retailer 8$405 NZD
Retailer 5$490 NZD
Retailer 3$590 NZD
Retailer 7$613 NZD
MOH London$1,402 NZD

43 data points across 11 retailers

12 retailers$155 NZD to $613 NZD

A
Cheapest Retailer
-
$155 NZD
$87 USD
A
Retailer 2
-
$178 NZD
$100 USD
View
A
Retailer 3
-
$203 NZD
$114 USD
View
Retailer 4
-
$203 NZD
$114 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$302 NZD
$170 USD
View
B+
Retailer 6
-
$348 NZD
£154 GBP
View
B+
Retailer 7
-
$387 NZD
HK$1,700 HKD
View
B
Retailer 8
-
$405 NZD
$228 USD
View
B
Retailer 9
-
$490 NZD
£217 GBP
View
B
Retailer 10
-
$590 NZD
$332 USD
View
B
Retailer 11
-
$613 NZD
$345 USD
View
Most Expensive
MOH London
LG541286084 · Nov 1
$1,402 NZD
£621 GBP
View
Price under review
11 more retailers have this diamond
Prices start from $155 NZDSave up to $459 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
0.31ct Marquise
$155 NZD