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Marquise|Lab Grown|IGI

1.09ct E SI1 Marquise Lab Grown Diamond

EX • E/SI1 • IGI LG792663045

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG792663045

Diamond specifications and retailer prices

From €156 EUR
$174 USD
As of October 25, 2026
Save €572 EUR (79%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €728 EUR at MOH London · As of October 26, 2026
View at MOH London

About this 1.09ct lab-grown marquise diamond

This 1.09ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG792663045 or 792663045. Listed at 17 retailers as of October 25, 2026, with prices from €156 to €728, a €572 spread on the same certified stone. MOH London lists it at €728. 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

1.09
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG792663045
Dimensions10.27 × 5.50 × 3.38 mm
L/W Ratio1.87
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.27 mm5.50 mm1.09 ctE / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG792663045
Side View
Table 63.0%Crown 35.8°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.5%

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 25
Current: €728 EUR|Low: €124 EUR|High: €859 EUR|Avg: €357 EUR|-3.3%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 31, 2026
Retailer 9€125 EUR
Retailer 7€139 EUR
Retailer 5€145 EUR
Retailer 4€156 EUR
Retailer 15€202 EUR
Retailer 11€264 EUR
Retailer 10€269 EUR
Retailer 3€290 EUR
Retailer 13€300 EUR
Retailer 12€334 EUR
Retailer 6€378 EUR
Retailer 17€390 EUR
Retailer 8€429 EUR
Retailer 14€479 EUR
Retailer 16€499 EUR
Retailer 2€582 EUR
MOH London€728 EUR

42 data points across 17 retailers

17 retailers€156 EUR to €728 EUR

Retailer 1
-
€125 EUR
$140 USD
Price last confirmed 9 days ago
Retailer 2
-
€145 EUR
$162 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
€156 EUR
$174 USD
View
A
Retailer 4
-
€183 EUR
HK$1,600 HKD
View
Retailer 5
-
€202 EUR
£178 GBP
View
Price last confirmed 15 days ago
A
Retailer 6
-
€264 EUR
£232 GBP
View
A
Retailer 7
-
€269 EUR
View
B+
Retailer 8
-
€290 EUR
$324 USD
View
B+
Retailer 9
-
€300 EUR
$335 USD
View
B+
Retailer 10
-
€334 EUR
£293 GBP
View
B+
Retailer 11
-
€378 EUR
$422 USD
View
B+
Retailer 12
-
€390 EUR
$436 USD
View
B+
Retailer 13
-
€429 EUR
SGD 648 SGD
View
B+
Retailer 14
-
€479 EUR
$535 USD
View
B+
Retailer 15
-
€499 EUR
$558 USD
View
B
Retailer 16
-
€582 EUR
$650 USD
View
Most Expensive
B
MOH London
LG792663045 · Oct 26
€728 EUR
£640 GBP
View
16 more retailers have this diamond
Prices start from €156 EURSave up to €572 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
1.09ct Marquise
€156 EUR