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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 £765 GBP
As of November 4, 2026
Save £2,923 GBP (79%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,689 GBP 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 £765 to £3,689, a £2,923 spread on the same certified stone. MOH London lists it at £3,689. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £3,689 GBP|Low: £765 GBP|High: £3,733 GBP|Avg: £1,646 GBP|-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£765 GBP
Retailer 3£990 GBP
Retailer 7£1,077 GBP
Retailer 8£1,108 GBP
Retailer 4£1,148 GBP
Retailer 10£1,586 GBP
Retailer 5£1,816 GBP
Retailer 9£2,140 GBP
Retailer 6£2,152 GBP
MOH London£3,689 GBP

16 data points across 10 retailers

10 retailers£765 GBP to £3,689 GBP

A
Cheapest Retailer
-
£765 GBP
B+
Retailer 2
-
£990 GBP
View
B+
Retailer 3
-
£1,077 GBP
View
B+
Retailer 4
-
£1,108 GBP
View
Final sale: no returns
B+
Retailer 5
-
£1,148 GBP
View
Retailer 6
-
£1,148 GBP
View
Price last confirmed 25 days ago
B
Retailer 7
-
£1,816 GBP
View
B
Retailer 8
-
£2,140 GBP
View
B
Retailer 9
-
£2,152 GBP
View
Most Expensive
B
MOH London
LG451056586 · Nov 3
£3,689 GBP
View
9 more retailers have this diamond
Prices start from £765 GBPSave up to £2,923 GBP

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
£765 GBP