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Round|Lab Grown|IGI

1.81ct J SI2 Round Lab Grown Diamond

ID • J/SI2 • IGI LG447099803

Shape and cutting style on the report: Round brilliant

Certificate IGI LG447099803

Diamond specifications and retailer prices

From £754 GBP
$1,010 USD
As of October 30, 2026
Save £2,766 GBP (79%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,520 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.81ct lab-grown round diamond

This 1.81ct lab-grown round 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 LG447099803 or 447099803. Listed at 10 retailers as of October 29, 2026, with prices from £754 to £3,520, a £2,766 spread on the same certified stone. MOH London lists it at £3,520. 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

1.81
Carat
J
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447099803
Dimensions7.86 × 7.89 × 4.77 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.86 mm7.89 mm1.81 ctJ / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447099803
Side View
Table 56.0%Crown 33°GirdlePavilion 40.4°Culet: NoneDepth 60.5%

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: £3,520 GBP|Low: £754 GBP|High: £3,549 GBP|Avg: £1,736 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 2£754 GBP
Retailer 3£940 GBP
Retailer 6£1,052 GBP
Retailer 4£1,090 GBP
Retailer 8£1,518 GBP
Retailer 5£1,726 GBP
Retailer 7£2,032 GBP
Retailer 9£2,438 GBP
MOH London£3,520 GBP

14 data points across 9 retailers

10 retailers£754 GBP to £3,520 GBP

A
Cheapest Retailer
-
£754 GBP
$1,010 USD
B+
Retailer 2
-
£940 GBP
$1,259 USD
View
B+
Retailer 3
-
£1,022 GBP
$1,370 USD
View
B+
Retailer 4
-
£1,052 GBP
$1,410 USD
View
Final sale: no returns
Retailer 5
-
£1,090 GBP
$1,460 USD
View
Price last confirmed 17 days ago
B+
Retailer 6
-
£1,090 GBP
$1,460 USD
View
B
Retailer 7
-
£1,726 GBP
$2,313 USD
View
B
Retailer 8
-
£2,032 GBP
$2,722 USD
View
B
Retailer 9
-
£2,043 GBP
$2,737 USD
View
Most Expensive
B
MOH London
LG447099803 · Oct 29
£3,520 GBP
View
9 more retailers have this diamond
Prices start from £754 GBPSave up to £2,766 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
1.81ct Round
£754 GBP