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Round|Lab Grown|IGI

3.23ct J SI1 Round Lab Grown Diamond

ID • J/SI1 • IGI LG490174551

Shape and cutting style on the report: Round brilliant

Certificate IGI LG490174551

Diamond specifications and retailer prices

From $2,586 AUD
As of November 5, 2026
Save $16,656 AUD (87%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $19,241 AUD at MOH London · As of November 3, 2026
View at MOH London

About this 3.23ct lab-grown round diamond

This 3.23ct lab-grown round sits in the three to five carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG490174551 or 490174551. Listed at 12 retailers as of November 3, 2026, with prices from $2,586 to $19,241, a $16,656 spread on the same certified stone. MOH London lists it at $19,241. 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

3.23
Carat
J
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG490174551
Dimensions9.52 × 9.43 × 5.81 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.52 mm9.43 mm3.23 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG490174551
Side View
Table 56.5%Crown 34.7°Girdle: MediumPavilion 40.3°Culet: NoneDepth 61.4%

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: Nov 5
Current: $19,241 AUD|Low: $2,586 AUD|High: $19,499 AUD|Avg: $10,387 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 6$2,586 AUD
Retailer 8$8,152 AUD
Retailer 12$8,542 AUD
Retailer 11$9,130 AUD
Retailer 3$9,457 AUD
Retailer 4$9,457 AUD
Retailer 9$9,457 AUD
Retailer 2$9,511 AUD
Retailer 5$10,097 AUD
Retailer 13$11,225 AUD
Retailer 7$11,441 AUD
Retailer 10$14,598 AUD
MOH London$19,241 AUD

42 data points across 13 retailers

12 retailers$2,586 AUD to $19,241 AUD

A
Cheapest Retailer
-
$2,586 AUD
B+
Retailer 2
-
$8,152 AUD
View
B+
Retailer 3
-
$8,542 AUD
View
B+
Retailer 4
-
$9,130 AUD
View
Final sale: no returns
B+
Retailer 5
-
$9,457 AUD
View
B+
Retailer 6
-
$9,457 AUD
View
Retailer 7
-
$9,457 AUD
View
Price last confirmed 25 days ago
B+
Retailer 8
-
$9,511 AUD
View
B
Retailer 9
-
$11,225 AUD
View
B
Retailer 10
-
$11,441 AUD
View
B
Retailer 11
-
$14,598 AUD
View
Most Expensive
B
MOH London
LG490174551 · Nov 3
$19,241 AUD
£10,606 GBP
View
11 more retailers have this diamond
Prices start from $2,586 AUDSave up to $16,656 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
3.23ct Round
$2,586 AUD