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Princess|Lab Grown|IGI

1.86ct J SI1 Princess Lab Grown Diamond

ID • J/SI1 • IGI LG436045032

Shape and cutting style on the report: Princess cut

Certificate IGI LG436045032

Diamond specifications and retailer prices

From £776 GBP
$1,040 USD
As of October 30, 2026
Save £2,643 GBP (77%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,419 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.86ct lab-grown princess diamond

This 1.86ct lab-grown princess 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 LG436045032 or 436045032. Listed at 11 retailers as of October 29, 2026, with prices from £776 to £3,419, a £2,643 spread on the same certified stone. MOH London lists it at £3,419. 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

1.86
Carat
J
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.1°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436045032
Dimensions6.80 × 6.60 × 4.74 mm
L/W Ratio1.03
Culet sizePointed
Cert comments
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Top View
6.80 mm6.60 mm1.86 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436045032
Side View
Table 74.0%Crown 42.1°Girdle: Slightly ThickPavilion 38.9°Culet: NoneDepth 71.8%

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 30
Current: £3,419 GBP|Low: £776 GBP|High: £3,446 GBP|Avg: £1,813 GBP|+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 30, 2026
Retailer 2£776 GBP
Retailer 4£1,027 GBP
Retailer 6£1,149 GBP
Retailer 11£1,175 GBP
Retailer 7£1,317 GBP
Retailer 10£1,492 GBP
Retailer 9£1,640 GBP
Retailer 5£1,880 GBP
Retailer 8£2,161 GBP
Retailer 3£3,409 GBP
MOH London£3,419 GBP

14 data points across 11 retailers

11 retailers£776 GBP to £3,419 GBP

A
Cheapest Retailer
-
£776 GBP
$1,040 USD
A
Retailer 2
-
£1,027 GBP
$1,376 USD
View
A
Retailer 3
-
£1,117 GBP
$1,497 USD
View
A
Retailer 4
-
£1,149 GBP
$1,540 USD
View
Final sale: no returns
A
Retailer 5
-
£1,191 GBP
$1,596 USD
View
Retailer 6
-
£1,191 GBP
$1,596 USD
View
Price last confirmed 18 days ago
B+
Retailer 7
-
£1,317 GBP
$1,765 USD
View
B
Retailer 8
-
£1,880 GBP
$2,519 USD
View
B
Retailer 9
-
£2,161 GBP
$2,896 USD
View
B
Retailer 10
-
£2,232 GBP
$2,991 USD
View
Most Expensive
B
MOH London
LG436045032 · Oct 29
£3,419 GBP
View
10 more retailers have this diamond
Prices start from £776 GBPSave up to £2,643 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
1.86ct Princess
£776 GBP