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Round|Lab Grown|IGI

1.81ct J SI2 Round Lab Grown Diamond

EX • J/SI2 • IGI LG436074522

Shape and cutting style on the report: Round brilliant

Certificate IGI LG436074522

Diamond specifications and retailer prices

From $1,452 AUD
$1,020 USD
As of October 30, 2026
Save $5,237 AUD (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,689 AUD at MOH London · As of October 27, 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 LG436074522 or 436074522. Listed at 10 retailers as of October 27, 2026, with prices from $1,452 to $6,689, a $5,237 spread on the same certified stone. MOH London lists it at $6,689. 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

1.81
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436074522
Dimensions7.69 × 7.73 × 4.87 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.69 mm7.73 mm1.81 ctJ / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436074522
Side View
Table 55.5%Crown 36.1°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 63.2%

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 30
Current: $6,689 AUD|Low: $1,452 AUD|High: $6,769 AUD|Avg: $3,124 AUD|+0.1%
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$1,452 AUD
Retailer 4$1,792 AUD
Retailer 7$1,950 AUD
Retailer 9$2,007 AUD
Retailer 5$2,078 AUD
Retailer 11$2,896 AUD
Retailer 6$3,293 AUD
Retailer 10$3,875 AUD
Retailer 8$3,896 AUD
Retailer 3$4,650 AUD
MOH London$6,689 AUD

14 data points across 11 retailers

10 retailers$1,452 AUD to $6,689 AUD

A
Cheapest Retailer
-
$1,452 AUD
$1,020 USD
B+
Retailer 2
-
$1,792 AUD
$1,259 USD
View
B+
Retailer 3
-
$1,950 AUD
$1,370 USD
View
B+
Retailer 4
-
$2,007 AUD
$1,410 USD
View
Final sale: no returns
Retailer 5
-
$2,078 AUD
$1,460 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
$2,078 AUD
$1,460 USD
View
B
Retailer 7
-
$3,293 AUD
$2,313 USD
View
B
Retailer 8
-
$3,875 AUD
$2,722 USD
View
B
Retailer 9
-
$3,896 AUD
$2,737 USD
View
Most Expensive
B
MOH London
LG436074522 · Oct 27
$6,689 AUD
£3,700 GBP
View
9 more retailers have this diamond
Prices start from $1,452 AUDSave up to $5,237 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
1.81ct Round
$1,452 AUD