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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 €1,620 EUR
$1,810 USD
As of October 30, 2026
Save €10,501 EUR (87%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €12,121 EUR at MOH London · As of October 29, 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 29, 2026, with prices from €1,620 to €12,121, a €10,501 spread on the same certified stone. MOH London lists it at €12,121. 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

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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: €12,121 EUR|Low: €1,620 EUR|High: €12,218 EUR|Avg: €6,517 EUR|+0.5%
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
October 30, 2026
Retailer 2€1,620 EUR
Retailer 8€5,108 EUR
Retailer 12€5,353 EUR
Retailer 11€5,721 EUR
Retailer 3€5,925 EUR
Retailer 4€5,925 EUR
Retailer 9€5,925 EUR
Retailer 6€6,011 EUR
Retailer 5€6,326 EUR
Retailer 13€7,034 EUR
Retailer 7€7,169 EUR
Retailer 10€9,147 EUR
MOH London€12,121 EUR

38 data points across 13 retailers

12 retailers€1,620 EUR to €12,121 EUR

A
Cheapest Retailer
-
€1,620 EUR
$1,810 USD
B+
Retailer 2
-
€5,108 EUR
$5,707 USD
View
B+
Retailer 3
-
€5,353 EUR
$5,980 USD
View
B+
Retailer 4
-
€5,721 EUR
$6,391 USD
View
Final sale: no returns
B+
Retailer 5
-
€5,925 EUR
$6,620 USD
View
B+
Retailer 6
-
€5,925 EUR
$6,620 USD
View
Retailer 7
-
€5,925 EUR
$6,620 USD
View
Price last confirmed 19 days ago
B+
Retailer 8
-
€6,011 EUR
£5,287 GBP
View
B
Retailer 9
-
€7,034 EUR
$7,858 USD
View
B
Retailer 10
-
€7,169 EUR
$8,009 USD
View
B
Retailer 11
-
€9,147 EUR
$10,219 USD
View
Most Expensive
B
MOH London
LG490174551 · Oct 29
€12,121 EUR
£10,663 GBP
View
11 more retailers have this diamond
Prices start from €1,620 EURSave up to €10,501 EUR

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
€1,620 EUR