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Round|Lab Grown|IGI

0.37ct F SI2 Round Lab Grown Diamond

EX • F/SI2 • IGI LG459129358

Shape and cutting style on the report: Round brilliant

Certificate IGI LG459129358

Diamond specifications and retailer prices

From $307 NZD
$173 USD
As of November 1, 2026
Save $919 NZD (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,785 NZD at MOH London · As of October 25, 2026
View at MOH London

About this 0.37ct lab-grown round diamond

This 0.37ct lab-grown round sits in the sub-half-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG459129358 or 459129358. Listed at 9 retailers as of October 30, 2026, with a 299% 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

0.37
Carat
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG459129358
Dimensions4.57 × 4.53 × 2.84 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
4.57 mm4.53 mm0.37 ctF / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG459129358
Side View
Table 56.0%Crown 36.6°Girdle: MED-STKPavilion 40°Culet: NoneDepth 62.4%

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: $1,785 NZD|Low: $295 NZD|High: $1,805 NZD|Avg: $692 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 3$307 NZD
Retailer 7$357 NZD
Retailer 5$381 NZD
Retailer 9$384 NZD
Retailer 4$444 NZD
Retailer 6$681 NZD
Retailer 2$779 NZD
Retailer 10$798 NZD
Retailer 8$873 NZD
MOH London$1,785 NZD

16 data points across 10 retailers

9 retailers$307 NZD to $1,226 NZD

A
Cheapest Retailer
-
$307 NZD
$173 USD
A
Retailer 2
-
$357 NZD
$201 USD
View
A
Retailer 3
-
$381 NZD
$215 USD
View
Retailer 4
-
$381 NZD
$215 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$444 NZD
$250 USD
View
B+
Retailer 6
-
$681 NZD
$384 USD
View
B+
Retailer 7
-
$779 NZD
€418 EUR
View
B
Retailer 8
-
$1,226 NZD
$691 USD
View
Most Expensive
MOH London
LG459129358 · Oct 25
$1,785 NZD
£792 GBP
View
Price last confirmed 7 days ago
8 more retailers have this diamond
Prices start from $307 NZDSave up to $919 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
0.37ct Round
$307 NZD