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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 $3,196 AUD
$2,245 USD
As of October 29, 2026
Save $6,917 AUD (68%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $10,112 AUD 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 $3,196 to $10,112, a $6,917 spread on the same certified stone. MOH London lists it at $10,112. 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: $10,112 AUD|Low: $3,477 AUD|High: $10,194 AUD|Avg: $5,950 AUD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 29, 2026
Retailer 4$3,477 AUD
Retailer 5$3,578 AUD
Retailer 6$4,703 AUD
Retailer 3$5,788 AUD
Retailer 2$5,810 AUD
Retailer 7$8,297 AUD
MOH London$10,112 AUD

12 data points across 7 retailers

9 retailers$3,196 AUD to $10,112 AUD

A
Cheapest Retailer
-
$3,196 AUD
$2,245 USD
B+
Retailer 2
-
$3,477 AUD
$2,443 USD
View
B+
Retailer 3
-
$3,578 AUD
$2,514 USD
View
Final sale: no returns
B+
Retailer 4
-
$3,708 AUD
$2,605 USD
View
Retailer 5
-
$3,708 AUD
$2,605 USD
View
Price last confirmed 19 days ago
B
Retailer 6
-
$5,096 AUD
$3,580 USD
View
B
Retailer 7
-
$5,788 AUD
$4,066 USD
View
B
Retailer 8
-
$5,810 AUD
$4,082 USD
View
Most Expensive
B
MOH London
LG451055643 · Oct 29
$10,112 AUD
£5,594 GBP
View
8 more retailers have this diamond
Prices start from $3,196 AUDSave up to $6,917 AUD

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
$3,196 AUD