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Marquise|Lab Grown|IGI

1.03ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG818682430

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818682430

Diamond specifications and retailer prices

From $177 USD
As of October 30, 2026
Save $850 USD (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,027 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.03ct lab-grown marquise diamond

This 1.03ct lab-grown marquise sits in the classic one-carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818682430 or 818682430. Listed at 18 retailers as of October 30, 2026, with prices from $177 to $1,027, a $850 spread on the same certified stone. MOH London lists it at $1,027. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818682430
Dimensions10.64 × 5.04 × 3.23 mm
L/W Ratio2.11
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.64 mm5.04 mm1.03 ctG / VS1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818682430
Side View
Table 59.0%Crown 33.1°Girdle: STK-THKPavilion 41.1°Culet: NoneDepth 64.1%

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 30
Current: $1,027 USD|Low: $170 USD|High: $1,043 USD|Avg: $476 USD|-1.2%
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
November 1, 2026
Retailer 5$177 USD
Retailer 15$197 USD
Retailer 14$206 USD
Retailer 8$269 USD
Retailer 6$336 USD
Retailer 2$380 USD
Retailer 13$391 USD
Retailer 9$395 USD
Retailer 12$520 USD
Retailer 11$536 USD
Retailer 10$558 USD
Retailer 4$601 USD
Retailer 7$707 USD
Retailer 3$761 USD
MOH London$1,027 USD

29 data points across 15 retailers

18 retailers$177 USD to $1,027 USD

A
Cheapest Retailer
-
$177 USD
A
Retailer 2
-
$197 USD
View
Final sale: no returns
A
Retailer 3
-
$206 USD
View
Retailer 4
-
$220 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$220 USD
View
A
Retailer 6
-
$269 USD
£212 GBP
View
A
Retailer 7
-
$336 USD
View
A
Retailer 8
-
$380 USD
ZAR 6,131 ZAR
View
A
Retailer 9
-
$391 USD
View
A
Retailer 10
-
$395 USD
£311 GBP
View
B+
Retailer 11
-
$520 USD
View
B+
Retailer 12
-
$536 USD
View
B+
Retailer 13
-
$558 USD
View
B+
Retailer 14
-
$601 USD
SGD 812 SGD
View
B
Retailer 15
-
$707 USD
View
B
Retailer 16
-
$737 USD
View
B
Retailer 17
-
$761 USD
View
Most Expensive
B
MOH London
LG818682430 · Nov 1
$1,027 USD
£809 GBP
View
17 more retailers have this diamond
Prices start from $177 USDSave up to $850 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
1.03ct Marquise
$177 USD