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Oval|Lab Grown|IGI

1.80ct J SI2 Oval Lab Grown Diamond

ID • J/SI2 • IGI LG436074594

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG436074594

Diamond specifications and retailer prices

From $1,597 NZD
$900 USD
As of October 29, 2026
Save $7,045 NZD (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $8,642 NZD at MOH London · As of October 29, 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 LG436074594 or 436074594. Listed at 10 retailers as of October 29, 2026, with prices from $1,597 to $8,642, a $7,045 spread on the same certified stone. MOH London lists it at $8,642. 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 angle34.1°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436074594
Dimensions9.49 × 7.05 × 4.24 mm
L/W Ratio1.35
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.49 mm7.05 mm1.80 ctJ / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436074594
Side View
Table 57.5%Crown 34.1°Girdle: MED-THKPavilion 40.5°Culet: NoneDepth 60.1%

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: Oct 29
Current: $8,642 NZD|Low: $1,597 NZD|High: $8,700 NZD|Avg: $4,332 NZD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 4$1,597 NZD
Retailer 2$2,594 NZD
Retailer 8$2,823 NZD
Retailer 9$2,905 NZD
Retailer 5$3,009 NZD
Retailer 11$4,106 NZD
Retailer 6$4,746 NZD
Retailer 10$5,463 NZD
Retailer 7$5,642 NZD
Retailer 3$6,736 NZD
MOH London$8,642 NZD

13 data points across 11 retailers

10 retailers$1,597 NZD to $8,642 NZD

A
Cheapest Retailer
-
$1,597 NZD
$900 USD
B+
Retailer 2
-
$2,594 NZD
$1,462 USD
View
B+
Retailer 3
-
$2,823 NZD
$1,591 USD
View
B+
Retailer 4
-
$2,905 NZD
$1,637 USD
View
Final sale: no returns
B+
Retailer 5
-
$3,009 NZD
$1,696 USD
View
Retailer 6
-
$3,009 NZD
$1,696 USD
View
Price last confirmed 18 days ago
B
Retailer 7
-
$4,746 NZD
$2,675 USD
View
B
Retailer 8
-
$5,463 NZD
$3,079 USD
View
B
Retailer 9
-
$5,642 NZD
$3,180 USD
View
Most Expensive
B
MOH London
LG436074594 · Oct 29
$8,642 NZD
£3,835 GBP
View
9 more retailers have this diamond
Prices start from $1,597 NZDSave up to $7,045 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