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Round|Lab Grown|IGI

1.50ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG786661952

Shape and cutting style on the report: Round brilliant

Certificate IGI LG786661952

Diamond specifications and retailer prices

From $406 NZD
As of November 6, 2026
Save $1,344 NZD (77%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,142 NZD at MOH London · As of October 26, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG786661952 or 786661952. Listed at 18 retailers as of November 5, 2026, with a 331% 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

1.50
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786661952
Dimensions7.25 × 7.31 × 4.56 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
7.25 mm7.31 mm1.50 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786661952
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.5%

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 6
Current: $2,142 NZD|Low: $406 NZD|High: $2,363 NZD|Avg: $1,096 NZD|+15.4%
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
November 6, 2026
Retailer 7$406 NZD
Retailer 4$507 NZD
Retailer 2$736 NZD
Retailer 8$785 NZD
Retailer 10$785 NZD
Retailer 6$821 NZD
Retailer 5$918 NZD
Retailer 12$981 NZD
Retailer 3$1,389 NZD
Retailer 9$1,461 NZD
Retailer 13$1,477 NZD
Retailer 11$1,750 NZD
MOH London$2,142 NZD

43 data points across 13 retailers

18 retailers$406 NZD to $1,750 NZD

Retailer 1
-
$370 NZD
Price last confirmed 27 days ago
A
Retailer 2
-
$406 NZD
View
Final sale: no returns
Retailer 3
-
$428 NZD
View
Price last confirmed 24 days ago
Retailer 4
-
$458 NZD
View
Price last confirmed 35 days ago
A
Retailer 5
-
$507 NZD
View
A
Retailer 6
-
$736 NZD
View
B+
Retailer 7
-
$785 NZD
View
A
Retailer 8
-
$785 NZD
View
A
Retailer 9
-
$821 NZD
View
Retailer 10
-
$918 NZD
View
Price last confirmed 11 days ago
B+
Retailer 11
-
$981 NZD
View
B+
Retailer 12
-
$1,182 NZD
View
Retailer 13
-
$1,389 NZD
View
Price last confirmed 12 days ago
B+
Retailer 14
-
$1,461 NZD
View
Retailer 15
-
$1,472 NZD
View
Price last confirmed 30 days ago
B+
Retailer 16
-
$1,477 NZD
View
B
Retailer 17
-
$1,750 NZD
View
Most Expensive
MOH London
LG786661952 · Oct 26
$2,142 NZD
£935 GBP
View
Price last confirmed 10 days ago
17 more retailers have this diamond
Prices start from $406 NZDSave up to $1,344 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
$406 NZD