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Marquise|Lab Grown|IGI

1.04ct E SI1 Marquise Lab Grown Diamond

EX • E/SI1 • IGI LG572327188

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG572327188

Diamond specifications and retailer prices

From $171 USD
As of October 30, 2026
Save $820 USD (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $991 USD at MOH London · As of October 26, 2026
View at MOH London

About this 1.04ct lab-grown marquise diamond

This 1.04ct 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 LG572327188 or 572327188. Listed at 13 retailers as of October 26, 2026, with prices from $171 to $991, a $820 spread on the same certified stone. MOH London lists it at $991. 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

1.04
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG572327188
Dimensions9.98 × 5.48 × 3.30 mm
L/W Ratio1.82
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
9.98 mm5.48 mm1.04 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG572327188
Side View
Table 63.5%Crown 34.4°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 60.2%

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: $991 USD|Low: $164 USD|High: $1,001 USD|Avg: $436 USD|-1.0%
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 11$171 USD
Retailer 9$198 USD
Retailer 12$211 USD
Retailer 13$211 USD
Retailer 6$275 USD
Retailer 3$313 USD
Retailer 5$377 USD
Retailer 2$377 USD
Retailer 7$505 USD
Retailer 10$529 USD
Retailer 4$680 USD
Retailer 8$718 USD
MOH London$991 USD

32 data points across 13 retailers

13 retailers$171 USD to $991 USD

A
Cheapest Retailer
-
$171 USD
A
Retailer 2
-
$198 USD
View
A
Retailer 3
-
$211 USD
View
A
Retailer 4
-
$211 USD
View
A
Retailer 5
-
$275 USD
£217 GBP
View
A
Retailer 6
-
$313 USD
View
B+
Retailer 7
-
$377 USD
View
B+
Retailer 8
-
$377 USD
£297 GBP
View
B+
Retailer 9
-
$505 USD
View
B+
Retailer 10
-
$529 USD
View
B
Retailer 11
-
$680 USD
View
B
Retailer 12
-
$718 USD
View
Most Expensive
B
MOH London
LG572327188 · Oct 26
$991 USD
£780 GBP
View
12 more retailers have this diamond
Prices start from $171 USDSave up to $820 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
1.04ct Marquise
$171 USD