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Princess|Lab Grown|IGI

1.80ct I SI2 Princess Lab Grown Diamond

ID • I/SI2 • IGI LG451056586

Shape and cutting style on the report: Princess cut

Certificate IGI LG451056586

Diamond specifications and retailer prices

From $1,832 NZD
As of November 4, 2026
Save $6,999 NZD (79%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $8,831 NZD at MOH London · As of November 3, 2026
View at MOH London

About this 1.8ct lab-grown princess diamond

This 1.8ct lab-grown princess sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451056586 or 451056586. Listed at 10 retailers as of November 3, 2026, with prices from $1,832 to $8,831, a $6,999 spread on the same certified stone. MOH London lists it at $8,831. 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
I
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.7°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451056586
Dimensions6.80 × 6.56 × 4.55 mm
L/W Ratio1.04
Culet sizePointed
Cert comments
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Top View
6.80 mm6.56 mm1.80 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451056586
Side View
Table 74.0%Crown 43.7°Girdle: MediumPavilion 38.2°Culet: NoneDepth 69.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $8,831 NZD|Low: $1,832 NZD|High: $8,937 NZD|Avg: $3,940 NZD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 3, 2026
Retailer 2$1,832 NZD
Retailer 3$2,369 NZD
Retailer 7$2,578 NZD
Retailer 8$2,652 NZD
Retailer 4$2,748 NZD
Retailer 10$3,796 NZD
Retailer 5$4,348 NZD
Retailer 9$5,123 NZD
Retailer 6$5,152 NZD
MOH London$8,831 NZD

16 data points across 10 retailers

10 retailers$1,832 NZD to $8,831 NZD

A
Cheapest Retailer
-
$1,832 NZD
B+
Retailer 2
-
$2,369 NZD
View
B+
Retailer 3
-
$2,578 NZD
View
B+
Retailer 4
-
$2,652 NZD
View
Final sale: no returns
B+
Retailer 5
-
$2,748 NZD
View
Retailer 6
-
$2,748 NZD
View
Price last confirmed 25 days ago
B
Retailer 7
-
$4,348 NZD
View
B
Retailer 8
-
$5,123 NZD
View
B
Retailer 9
-
$5,152 NZD
View
Most Expensive
B
MOH London
LG451056586 · Nov 3
$8,831 NZD
£3,909 GBP
View
9 more retailers have this diamond
Prices start from $1,832 NZDSave up to $6,999 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 Princess
$1,832 NZD