Marquise|Lab Grown|IGI

1.25ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG838649551

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG838649551

Diamond specifications and retailer prices

From $426 USD
As of November 1, 2026
Save $721 USD (63%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,147 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.25ct lab-grown marquise diamond

This 1.25ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG838649551 or 838649551. Listed at 6 retailers as of November 1, 2026, with prices from $426 to $1,147, a $721 spread on the same certified stone. MOH London lists it at $1,147. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
F
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838649551
Dimensions11.03 × 5.51 × 3.52 mm
L/W Ratio2.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.03 mm5.51 mm1.25 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838649551
Side View
Table 63.0%Crown 35.4°Girdle: MED-THKPavilion 41.4°Culet: NoneDepth 63.9%

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: $1,147 USD|Low: $426 USD|High: $1,153 USD|Avg: $664 USD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 6$426 USD
Retailer 2$449 USD
Retailer 4$464 USD
Retailer 3$665 USD
Retailer 5$842 USD
MOH London$1,147 USD

9 data points across 6 retailers

6 retailers$426 USD to $1,147 USD

A
Cheapest Retailer
-
$426 USD
A
Retailer 2
-
$449 USD
£354 GBP
View
A
Retailer 3
-
$464 USD
View
B+
Retailer 4
-
$665 USD
View
B
Retailer 5
-
$842 USD
View
Most Expensive
B
MOH London
LG838649551 · Nov 1
$1,147 USD
£903 GBP
View
5 more retailers have this diamond
Prices start from $426 USDSave up to $721 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
1.25ct Marquise
$426 USD