Marquise|Lab Grown|IGI

3.23ct E SI1 Marquise Lab Grown Diamond

EX • E/SI1 • IGI LG801658975

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG801658975

Diamond specifications and retailer prices

From $605 USD
As of October 30, 2026
Save $2,654 USD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,259 USD at MOH London · As of October 26, 2026
View at MOH London

About this 3.23ct lab-grown marquise diamond

This 3.23ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG801658975 or 801658975. Listed at 14 retailers as of October 26, 2026, with prices from $605 to $3,259, a $2,654 spread on the same certified stone. MOH London lists it at $3,259. 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
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801658975
Dimensions14.79 × 7.84 × 4.93 mm
L/W Ratio1.89
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.79 mm7.84 mm3.23 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG801658975
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.9%

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: $3,259 USD|Low: $865 USD|High: $3,298 USD|Avg: $1,639 USD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 4$880 USD
Retailer 7$1,005 USD
Retailer 8$1,103 USD
Retailer 2$1,173 USD
Retailer 3$1,520 USD
Retailer 6$1,860 USD
Retailer 5$2,760 USD
MOH London$3,259 USD

39 data points across 8 retailers

14 retailers$605 USD to $3,259 USD

A
Cheapest Retailer
-
$605 USD
A
Retailer 2
-
$677 USD
View
Retailer 3
-
$750 USD
View
Price last confirmed 14 days ago
A
Retailer 4
-
$750 USD
View
A
Retailer 5
-
$880 USD
View
A
Retailer 6
-
$1,005 USD
View
B+
Retailer 7
-
$1,103 USD
View
B+
Retailer 8
-
$1,173 USD
£924 GBP
View
B+
Retailer 9
-
$1,185 USD
View
B+
Retailer 10
-
$1,520 USD
A$2,338 AUD
View
B
Retailer 11
-
$1,860 USD
View
B
Retailer 12
-
$1,972 USD
View
B
Retailer 13
-
$2,760 USD
View
Most Expensive
B
MOH London
LG801658975 · Oct 26
$3,259 USD
£2,566 GBP
View
13 more retailers have this diamond
Prices start from $605 USDSave up to $2,654 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 Marquise
$605 USD