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Marquise|Lab Grown|IGI

1.09ct H VS1 Marquise Lab Grown Diamond

ID • H/VS1 • IGI LG837665667

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG837665667

Diamond specifications and retailer prices

From $275 USD
As of November 1, 2026
Save $679 USD (71%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $954 USD at MOH London · As of November 1, 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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG837665667 or 837665667. Listed at 5 retailers as of November 1, 2026, with prices from $275 to $954, a $679 spread on the same certified stone. MOH London lists it at $954. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
H
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837665667
Dimensions11.61 × 5.36 × 3.02 mm
L/W Ratio2.17
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.61 mm5.36 mm1.09 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837665667
Side View
Table 57.0%Crown 33.1°Girdle: THN-MEDPavilion 37.4°Culet: NoneDepth 56.3%

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 1
Current: $954 USD|Low: $275 USD|High: $966 USD|Avg: $543 USD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 5$275 USD
Retailer 3$373 USD
Retailer 2$388 USD
Retailer 4$711 USD
MOH London$954 USD

11 data points across 5 retailers

5 retailers$275 USD to $954 USD

B+
Cheapest Retailer
-
$275 USD
A
Retailer 2
-
$373 USD
View
A
Retailer 3
-
$388 USD
£305 GBP
View
B+
Retailer 4
-
$711 USD
View
Most Expensive
B+
MOH London
LG837665667 · Nov 1
$954 USD
£751 GBP
View
4 more retailers have this diamond
Prices start from $275 USDSave up to $679 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
$275 USD