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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 $314 NZD
As of November 4, 2026
Save $1,509 NZD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,823 NZD at MOH London · As of November 2, 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 19 retailers as of November 2, 2026, with prices from $314 to $1,823, a $1,509 spread on the same certified stone. MOH London lists it at $1,823. 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
Colour
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: Nov 4
Current: $1,823 NZD|Low: $302 NZD|High: $1,850 NZD|Avg: $851 NZD|-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
November 5, 2026
Retailer 5$314 NZD
Retailer 13$349 NZD
Retailer 12$365 NZD
Retailer 6$475 NZD
Retailer 8$672 NZD
Retailer 2$694 NZD
Retailer 11$694 NZD
Retailer 10$922 NZD
Retailer 9$951 NZD
Retailer 7$1,001 NZD
Retailer 4$1,064 NZD
Retailer 3$1,350 NZD
MOH London$1,823 NZD

32 data points across 13 retailers

19 retailers$314 NZD to $1,823 NZD

A
Cheapest Retailer
-
$314 NZD
A
Retailer 2
-
$349 NZD
View
Final sale: no returns
A
Retailer 3
-
$365 NZD
View
Retailer 4
-
$390 NZD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$390 NZD
View
A
Retailer 6
-
$475 NZD
View
A
Retailer 7
-
$596 NZD
View
A
Retailer 8
-
$672 NZD
View
A
Retailer 9
-
$694 NZD
View
A
Retailer 10
-
$694 NZD
View
B+
Retailer 11
-
$922 NZD
View
B+
Retailer 12
-
$951 NZD
View
B+
Retailer 13
-
$1,001 NZD
View
B+
Retailer 14
-
$1,064 NZD
View
B+
Retailer 15
-
$1,171 NZD
View
B
Retailer 16
-
$1,254 NZD
View
B
Retailer 17
-
$1,307 NZD
View
B
Retailer 18
-
$1,350 NZD
View
Most Expensive
B
MOH London
LG818682430 · Nov 2
$1,823 NZD
£809 GBP
View
18 more retailers have this diamond
Prices start from $314 NZDSave up to $1,509 NZD

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
$314 NZD