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Round|Lab Grown|IGI

2.12ct J SI2 Round Lab Grown Diamond

ID • J/SI2 • IGI LG451055643

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451055643

Diamond specifications and retailer prices

From £1,686 GBP
$2,245 USD
As of October 29, 2026
Save £3,649 GBP (68%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £5,335 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 2.12ct lab-grown round diamond

This 2.12ct lab-grown round sits in the two to three carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451055643 or 451055643. Listed at 9 retailers as of October 29, 2026, with prices from £1,686 to £5,335, a £3,649 spread on the same certified stone. MOH London lists it at £5,335. 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

2.12
Carat
J
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451055643
Dimensions8.17 × 8.20 × 5.09 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
8.17 mm8.20 mm2.12 ctJ / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451055643
Side View
Table 59.0%Crown 34.9°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.2%

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: Oct 29
Current: £5,335 GBP|Low: £1,835 GBP|High: £5,378 GBP|Avg: £3,139 GBP|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 29, 2026
Retailer 4£1,835 GBP
Retailer 5£1,888 GBP
Retailer 6£2,481 GBP
Retailer 3£3,053 GBP
Retailer 2£3,065 GBP
Retailer 7£4,377 GBP
MOH London£5,335 GBP

12 data points across 7 retailers

9 retailers£1,686 GBP to £5,335 GBP

A
Cheapest Retailer
-
£1,686 GBP
$2,245 USD
B+
Retailer 2
-
£1,835 GBP
$2,443 USD
View
B+
Retailer 3
-
£1,888 GBP
$2,514 USD
View
Final sale: no returns
B+
Retailer 4
-
£1,956 GBP
$2,605 USD
View
B+
Retailer 5
-
£1,956 GBP
$2,605 USD
View
Price last confirmed 18 days ago
B
Retailer 6
-
£2,688 GBP
$3,580 USD
View
B
Retailer 7
-
£3,053 GBP
$4,066 USD
View
B
Retailer 8
-
£3,065 GBP
$4,082 USD
View
Most Expensive
B
MOH London
LG451055643 · Oct 29
£5,335 GBP
View
8 more retailers have this diamond
Prices start from £1,686 GBPSave up to £3,649 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
2.12ct Round
£1,686 GBP