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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 £452 GBP
$605 USD
As of October 30, 2026
Save £1,981 GBP (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,432 GBP 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 £452 to £2,432, a £1,981 spread on the same certified stone. MOH London lists it at £2,432. 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
Colour
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: £2,432 GBP|Low: £433 GBP|High: £2,462 GBP|Avg: £1,083 GBP|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 9£452 GBP
Retailer 12£505 GBP
Retailer 10£560 GBP
Retailer 6£657 GBP
Retailer 3£750 GBP
Retailer 4£823 GBP
Retailer 2£868 GBP
Retailer 5£1,134 GBP
Retailer 8£1,388 GBP
Retailer 11£1,472 GBP
Retailer 7£2,060 GBP
MOH London£2,432 GBP

42 data points across 12 retailers

14 retailers£452 GBP to £2,432 GBP

A
Cheapest Retailer
-
£452 GBP
$605 USD
A
Retailer 2
-
£505 GBP
$677 USD
View
Retailer 3
-
£560 GBP
$750 USD
View
Price last confirmed 15 days ago
A
Retailer 4
-
£560 GBP
$750 USD
View
A
Retailer 5
-
£657 GBP
$880 USD
View
A
Retailer 6
-
£750 GBP
$1,005 USD
View
B+
Retailer 7
-
£823 GBP
$1,103 USD
View
A
Retailer 8
-
£868 GBP
View
B+
Retailer 9
-
£884 GBP
$1,185 USD
View
B+
Retailer 10
-
£1,134 GBP
A$2,338 AUD
View
B
Retailer 11
-
£1,388 GBP
$1,860 USD
View
B
Retailer 12
-
£1,472 GBP
$1,972 USD
View
B
Retailer 13
-
£2,060 GBP
$2,760 USD
View
Most Expensive
B
MOH London
LG801658975 · Oct 26
£2,432 GBP
View
13 more retailers have this diamond
Prices start from £452 GBPSave up to £1,981 GBP

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
£452 GBP