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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 $1,810 USD
As of October 31, 2026
Save $11,660 USD (87%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $13,470 USD at MOH London · As of November 1, 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 October 31, 2026, with prices from $1,810 to $13,470, a $11,660 spread on the same certified stone. MOH London lists it at $13,470. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $13,470 USD|Low: $1,810 USD|High: $13,650 USD|Avg: $7,278 USD
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 1, 2026
Retailer 6$1,810 USD
Retailer 8$5,707 USD
Retailer 12$5,980 USD
Retailer 11$6,391 USD
Retailer 3$6,620 USD
Retailer 4$6,620 USD
Retailer 9$6,620 USD
Retailer 2$6,695 USD
Retailer 5$7,068 USD
Retailer 13$7,858 USD
Retailer 7$8,009 USD
Retailer 10$10,219 USD
MOH London$13,470 USD

39 data points across 13 retailers

12 retailers$1,810 USD to $13,470 USD

A
Cheapest Retailer
-
$1,810 USD
B+
Retailer 2
-
$5,707 USD
View
B+
Retailer 3
-
$5,980 USD
View
B+
Retailer 4
-
$6,391 USD
View
Final sale: no returns
B+
Retailer 5
-
$6,620 USD
View
B+
Retailer 6
-
$6,620 USD
View
Retailer 7
-
$6,620 USD
View
Price last confirmed 19 days ago
B+
Retailer 8
-
$6,695 USD
£5,272 GBP
View
B
Retailer 9
-
$7,858 USD
View
B
Retailer 10
-
$8,009 USD
View
B
Retailer 11
-
$10,219 USD
View
Most Expensive
B
MOH London
LG490174551 · Nov 1
$13,470 USD
£10,606 GBP
View
11 more retailers have this diamond
Prices start from $1,810 USDSave up to $11,660 USD

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
$1,810 USD