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Oval|Lab Grown|IGI

1.80ct J SI2 Oval Lab Grown Diamond

ID • J/SI2 • IGI LG445036833

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG445036833

Diamond specifications and retailer prices

From $1,597 NZD
$900 USD
As of October 29, 2026
8 retailers carry this diamond
Most expensive: $8,711 NZD at MOH London · As of October 8, 2026
View at MOH London

About this 1.8ct lab-grown oval diamond

This 1.8ct lab-grown oval sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445036833 or 445036833. Listed at 8 retailers as of October 29, 2026. 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

1.80
Carat
J
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.6°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445036833
Dimensions9.51 × 6.82 × 4.29 mm
L/W Ratio1.39
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.51 mm6.82 mm1.80 ctJ / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG445036833
Side View
Table 55.0%Crown 32.6°Girdle: STK-THKPavilion 41.4°Culet: NoneDepth 62.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: $8,711 NZD|Low: $1,597 NZD|High: $8,711 NZD|Avg: $4,399 NZD|+1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 8, 2026
Retailer 2$1,597 NZD
Retailer 4$2,905 NZD
Retailer 5$3,009 NZD
Retailer 8$3,342 NZD
Retailer 7$4,106 NZD
Retailer 3$4,746 NZD
Retailer 6$5,463 NZD
Retailer 9$6,736 NZD
MOH London$8,711 NZD

8 data points across 9 retailers

8 retailers

A
Cheapest Retailer
-
$1,597 NZD
$900 USD
Retailer 2
-
$2,491 NZD
$1,404 USD
View
Price last confirmed 29 days ago
Retailer 3
-
$2,823 NZD
$1,591 USD
View
Price last confirmed 21 days ago
Retailer 4
-
$3,009 NZD
$1,696 USD
View
Price last confirmed 29 days ago
Retailer 5
-
$4,746 NZD
$2,675 USD
View
Price last confirmed 22 days ago
Retailer 6
-
$5,463 NZD
$3,079 USD
View
Price last confirmed 21 days ago
Retailer 7
-
$5,642 NZD
$3,180 USD
View
Price last confirmed 24 days ago
Most Expensive
MOH London
LG445036833 · Oct 8
$8,711 NZD
£3,866 GBP
View
Price last confirmed 23 days ago
7 more retailers have this diamond
Prices start from $1,597 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
1.80ct Oval
$1,597 NZD