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Oval|Lab Grown|IGI

1.50ct J SI1 Oval Lab Grown Diamond

ID • J/SI1 • IGI LG445035858

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG445035858

Diamond specifications and retailer prices

From $1,497 NZD
As of November 6, 2026
Save $7,089 NZD (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $8,586 NZD at MOH London · As of November 5, 2026
View at MOH London

About this 1.5ct lab-grown oval diamond

This 1.5ct lab-grown oval sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445035858 or 445035858. Listed at 11 retailers as of November 5, 2026, with prices from $1,497 to $8,586, a $7,089 spread on the same certified stone. MOH London lists it at $8,586. 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
J
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445035858
Dimensions8.73 × 6.48 × 4.11 mm
L/W Ratio1.35
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
8.73 mm6.48 mm1.50 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG445035858
Side View
Table 56.0%Crown 35.7°Girdle: STK-THKPavilion 40.5°Culet: NoneDepth 63.4%

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: $8,586 NZD|Low: $1,497 NZD|High: $8,724 NZD|Avg: $4,666 NZD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 2$1,497 NZD
Retailer 3$2,599 NZD
Retailer 6$2,910 NZD
Retailer 4$3,014 NZD
Retailer 8$3,319 NZD
Retailer 9$4,098 NZD
Retailer 5$4,757 NZD
Retailer 7$5,471 NZD
MOH London$8,586 NZD
Retailer 10$8,632 NZD

14 data points across 10 retailers

11 retailers$1,497 NZD to $8,586 NZD

A
Cheapest Retailer
-
$1,497 NZD
B+
Retailer 2
-
$2,599 NZD
View
B+
Retailer 3
-
$2,827 NZD
View
B+
Retailer 4
-
$2,910 NZD
View
Final sale: no returns
Retailer 5
-
$3,014 NZD
View
Price last confirmed 25 days ago
B+
Retailer 6
-
$3,014 NZD
View
B+
Retailer 7
-
$3,319 NZD
View
B
Retailer 8
-
$4,757 NZD
View
B
Retailer 9
-
$5,471 NZD
View
B
Retailer 10
-
$5,650 NZD
View
Most Expensive
B
MOH London
LG445035858 · Nov 5
$8,586 NZD
£3,748 GBP
View
10 more retailers have this diamond
Prices start from $1,497 NZDSave up to $7,089 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 Oval
$1,497 NZD