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Round|Lab Grown|IGI

1.50ct G SI1 Round Lab Grown Diamond

EX • G/SI1 • IGI LG783615018

Shape and cutting style on the report: Round brilliant

Certificate IGI LG783615018

Diamond specifications and retailer prices

From $340 NZD
As of November 5, 2026
Save $1,626 NZD (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,966 NZD at MOH London · As of November 5, 2026
View at MOH London

About this 1.5ct lab-grown round diamond

This 1.5ct lab-grown round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG783615018 or 783615018. Listed at 17 retailers as of November 5, 2026, with prices from $340 to $1,966, a $1,626 spread on the same certified stone. MOH London lists it at $1,966. 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

1.50
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783615018
Dimensions7.38 × 7.34 × 4.49 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.38 mm7.34 mm1.50 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG783615018
Side View
Table 61.0%Crown 34°Girdle: MediumPavilion 41.4°Culet: NoneDepth 60.9%

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 5
Current: $1,966 NZD|Low: $340 NZD|High: $2,033 NZD|Avg: $872 NZD|-3.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 7$340 NZD
Retailer 3$379 NZD
Retailer 16$395 NZD
Retailer 12$422 NZD
Retailer 8$423 NZD
Retailer 4$738 NZD
Retailer 2$745 NZD
Retailer 9$756 NZD
Retailer 14$795 NZD
Retailer 15$1,012 NZD
Retailer 10$1,110 NZD
Retailer 11$1,219 NZD
Retailer 13$1,356 NZD
Retailer 5$1,375 NZD
Retailer 6$1,450 NZD
MOH London$1,966 NZD

28 data points across 16 retailers

17 retailers$340 NZD to $1,966 NZD

A
Cheapest Retailer
-
$340 NZD
A
Retailer 2
-
$379 NZD
View
Final sale: no returns
A
Retailer 3
-
$395 NZD
View
A
Retailer 4
-
$422 NZD
View
Retailer 5
-
$423 NZD
View
Price last confirmed 12 days ago
B+
Retailer 6
-
$738 NZD
View
A
Retailer 7
-
$745 NZD
View
A
Retailer 8
-
$756 NZD
View
A
Retailer 9
-
$795 NZD
View
B+
Retailer 10
-
$1,012 NZD
View
B+
Retailer 11
-
$1,110 NZD
View
B+
Retailer 12
-
$1,219 NZD
View
Retailer 13
-
$1,356 NZD
View
Price last confirmed 46 days ago
B
Retailer 14
-
$1,356 NZD
View
B
Retailer 15
-
$1,375 NZD
View
B+
Retailer 16
-
$1,450 NZD
View
Most Expensive
B
MOH London
LG783615018 · Nov 5
$1,966 NZD
£870 GBP
View
16 more retailers have this diamond
Prices start from $340 NZDSave up to $1,626 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
1.50ct Round
$340 NZD