CaratHunter
Plans
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 $162 USD
As of October 24, 2026
Save $651 USD (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $813 USD 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 24, 2026, with prices from $162 to $813, a $651 spread on the same certified stone. MOH London lists it at $813. 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

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 24
Current: $813 USD|Low: $138 USD|High: $960 USD|Avg: $400 USD|-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 30, 2026
Retailer 9$140 USD
Retailer 7$155 USD
Retailer 5$162 USD
Retailer 4$174 USD
Retailer 15$226 USD
Retailer 11$295 USD
Retailer 10$300 USD
Retailer 3$324 USD
Retailer 13$335 USD
Retailer 12$373 USD
Retailer 6$422 USD
Retailer 17$436 USD
Retailer 8$480 USD
Retailer 14$535 USD
Retailer 16$558 USD
Retailer 2$640 USD
MOH London$813 USD

42 data points across 17 retailers

17 retailers$162 USD to $813 USD

Retailer 1
-
$140 USD
Price last confirmed 8 days ago
A
Retailer 2
-
$162 USD
View
A
Retailer 3
-
$174 USD
View
A
Retailer 4
-
$205 USD
HK$1,600 HKD
View
Retailer 5
-
$226 USD
£178 GBP
View
Price last confirmed 14 days ago
A
Retailer 6
-
$295 USD
£232 GBP
View
A
Retailer 7
-
$300 USD
€286 EUR
View
B+
Retailer 8
-
$324 USD
View
B+
Retailer 9
-
$335 USD
View
B+
Retailer 10
-
$373 USD
£293 GBP
View
B+
Retailer 11
-
$422 USD
View
B+
Retailer 12
-
$436 USD
View
B+
Retailer 13
-
$480 USD
SGD 648 SGD
View
B+
Retailer 14
-
$535 USD
View
B+
Retailer 15
-
$558 USD
View
B
Retailer 16
-
$640 USD
View
Most Expensive
B
MOH London
LG792663045 · Oct 26
$813 USD
£640 GBP
View
16 more retailers have this diamond
Prices start from $162 USDSave up to $651 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
1.09ct Marquise
$162 USD