Marquise|Lab Grown|IGI

1.51ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG818657341

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818657341

Diamond specifications and retailer prices

From $1,190 USD
As of November 4, 2026
19 retailers carry this diamond
Most expensive: $1,274 USD at MOH London · As of October 25, 2026
View at MOH London

About this 1.51ct lab-grown marquise diamond

This 1.51ct lab-grown marquise sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818657341 or 818657341. Listed at 19 retailers as of November 4, 2026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
F
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818657341
Dimensions12.84 × 5.86 × 3.51 mm
L/W Ratio2.19
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.84 mm5.86 mm1.51 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818657341
Side View
Table 56.0%Crown 31.5°Girdle: MED-STKPavilion 38.4°Culet: NoneDepth 59.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 4
Current: $1,274 USD|Low: $246 USD|High: $1,364 USD|Avg: $667 USD|+0.1%
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
Retailer 16
Retailer 17
October 28, 2026
Retailer 15$256 USD
Retailer 7$286 USD
Retailer 8$297 USD
Retailer 9$317 USD
Retailer 17$317 USD
Retailer 5$428 USD
Retailer 4$475 USD
Retailer 12$544 USD
Retailer 2$545 USD
Retailer 11$601 USD
Retailer 10$739 USD
Retailer 14$800 USD
Retailer 16$1,015 USD
Retailer 6$1,020 USD
Retailer 13$1,190 USD
Retailer 3$1,248 USD
MOH London$1,274 USD

37 data points across 17 retailers

19 retailers

Retailer 1
-
$256 USD
Price last confirmed 10 days ago
Retailer 2
-
$297 USD
View
Price last confirmed 13 days ago
Retailer 3
-
$313 USD
View
Price last confirmed 42 days ago
Retailer 4
-
$317 USD
View
Price last confirmed 12 days ago
Retailer 5
-
$317 USD
View
Price last confirmed 12 days ago
Retailer 6
-
$428 USD
View
Price last confirmed 9 days ago
Retailer 7
-
$475 USD
View
Price last confirmed 9 days ago
Retailer 8
-
$525 USD
View
Price last confirmed 10 days ago
Retailer 9
-
$544 USD
View
Price last confirmed 10 days ago
Retailer 10
-
$545 USD
View
Price last confirmed 9 days ago
Retailer 11
-
$601 USD
View
Price last confirmed 10 days ago
Retailer 12
-
$739 USD
View
Price last confirmed 9 days ago
Retailer 13
-
$800 USD
View
Price last confirmed 11 days ago
Retailer 14
-
$1,015 USD
View
Price last confirmed 30 days ago
Retailer 15
-
$1,020 USD
View
Price last confirmed 12 days ago
Retailer 16
-
$1,071 USD
View
Price last confirmed 10 days ago
B
Retailer 17
-
$1,190 USD
View
Retailer 18
-
$1,248 USD
View
Price last confirmed 11 days ago
Most Expensive
MOH London
LG818657341 · Oct 25
$1,274 USD
£1,003 GBP
View
Price last confirmed 11 days ago
18 more retailers have this diamond
Prices start from $1,190 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.

B
1.51ct Marquise
$1,190 USD