CaratHunter
Plans
Round|Lab Grown|IGI

1.50ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG804642988

Shape and cutting style on the report: Round brilliant

Certificate IGI LG804642988

Diamond specifications and retailer prices

From $356 NZD
As of November 5, 2026
Save $1,709 NZD (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,065 NZD at MOH London · As of November 2, 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 LG804642988 or 804642988. Listed at 16 retailers as of November 2, 2026, with prices from $356 to $2,065, a $1,709 spread on the same certified stone. MOH London lists it at $2,065. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804642988
Dimensions7.45 × 7.38 × 4.50 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.45 mm7.38 mm1.50 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804642988
Side View
Table 58.0%Crown 33.2°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 60.7%

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 5
Current: $2,065 NZD|Low: $356 NZD|High: $2,090 NZD|Avg: $1,019 NZD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7$356 NZD
Retailer 8$441 NZD
Retailer 2$747 NZD
Retailer 9$767 NZD
Retailer 5$799 NZD
Retailer 10$897 NZD
Retailer 6$1,245 NZD
Retailer 3$1,423 NZD
Retailer 4$1,512 NZD
MOH London$2,065 NZD

42 data points across 10 retailers

16 retailers$356 NZD to $2,065 NZD

A
Cheapest Retailer
-
$356 NZD
A
Retailer 2
-
$413 NZD
View
Retailer 3
-
$441 NZD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$441 NZD
View
A
Retailer 5
-
$747 NZD
View
B+
Retailer 6
-
$767 NZD
View
A
Retailer 7
-
$799 NZD
View
A
Retailer 8
-
$802 NZD
View
B+
Retailer 9
-
$897 NZD
View
B+
Retailer 10
-
$1,245 NZD
View
Retailer 11
-
$1,281 NZD
View
Price last confirmed 19 days ago
B+
Retailer 12
-
$1,420 NZD
View
B
Retailer 13
-
$1,423 NZD
View
B
Retailer 14
-
$1,512 NZD
View
B
Retailer 15
-
$1,514 NZD
View
Most Expensive
B
MOH London
LG804642988 · Nov 2
$2,065 NZD
£914 GBP
View
15 more retailers have this diamond
Prices start from $356 NZDSave up to $1,709 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
$356 NZD