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Marquise|Lab Grown|IGI

1.18ct E VS1 Marquise Lab Grown Diamond

ID • E/VS1 • IGI LG660425841

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG660425841

Diamond specifications and retailer prices

From $197 USD
As of October 27, 2026
Save $952 USD (83%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,149 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.18ct lab-grown marquise diamond

This 1.18ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG660425841 or 660425841. Listed at 20 retailers as of October 27, 2026, with prices from $197 to $1,149, a $952 spread on the same certified stone. MOH London lists it at $1,149. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.18
Carat
E
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG660425841
Dimensions10.91 × 5.58 × 10.91 mm
L/W Ratio1.96
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.91 mm5.58 mm1.18 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG660425841
Side View
Table 58.0%Crown 34.6°Girdle: STK-THKPavilion 39.9°Culet: NoneDepth 61.1%

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 27
Current: $1,149 USD|Low: $220 USD|High: $1,157 USD|Avg: $592 USD|+0.6%
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 29, 2026
Retailer 3$220 USD
Retailer 12$330 USD
Retailer 5$412 USD
Retailer 8$420 USD
Retailer 2$446 USD
Retailer 9$525 USD
Retailer 11$563 USD
Retailer 10$627 USD
Retailer 7$715 USD
Retailer 6$840 USD
Retailer 4$960 USD
MOH London$1,149 USD

42 data points across 12 retailers

20 retailers$197 USD to $1,149 USD

A
Cheapest Retailer
-
$197 USD
A
Retailer 2
-
$220 USD
View
Final sale: no returns
A
Retailer 3
-
$229 USD
View
A
Retailer 4
-
$245 USD
View
A
Retailer 5
-
$245 USD
View
B+
Retailer 6
-
$330 USD
View
A
Retailer 7
-
$412 USD
€392 EUR
View
A
Retailer 8
-
$420 USD
View
A
Retailer 9
-
$420 USD
ZAR 6,786 ZAR
View
A
Retailer 10
-
$446 USD
£351 GBP
View
B+
Retailer 11
-
$525 USD
A$808 AUD
View
B+
Retailer 12
-
$563 USD
View
B+
Retailer 13
-
$627 USD
View
B+
Retailer 14
-
$715 USD
A$1,100 AUD
View
B
Retailer 15
-
$786 USD
View
B
Retailer 16
-
$827 USD
View
B
Retailer 17
-
$840 USD
View
B
Retailer 18
-
$840 USD
View
B
Retailer 19
-
$960 USD
£756 GBP
View
Most Expensive
B
MOH London
LG660425841 · Oct 29
$1,149 USD
£905 GBP
View
19 more retailers have this diamond
Prices start from $197 USDSave up to $952 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
1.18ct Marquise
$197 USD