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Marquise|Lab Grown|IGI

1.51ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • IGI LG780636510

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780636510

Diamond specifications and retailer prices

From $254 USD
As of November 4, 2026
Save $1,003 USD (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,257 USD at MOH London · As of November 5, 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 LG780636510 or 780636510. Listed at 16 retailers as of November 4, 2026, with prices from $254 to $1,257, a $1,003 spread on the same certified stone. MOH London lists it at $1,257. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780636510
Dimensions11.99 × 5.96 × 3.61 mm
L/W Ratio2.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.99 mm5.96 mm1.51 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780636510
Side View
Table 59.0%Crown 34.1°Girdle: MED-STKPavilion 38.4°Culet: NoneDepth 60.6%

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: $1,257 USD|Low: $244 USD|High: $1,276 USD|Avg: $645 USD|-0.3%
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
November 5, 2026
Retailer 11$254 USD
Retailer 4$294 USD
Retailer 5$315 USD
Retailer 12$315 USD
Retailer 14$422 USD
Retailer 9$475 USD
Retailer 8$543 USD
Retailer 2$593 USD
Retailer 6$653 USD
Retailer 7$736 USD
Retailer 10$966 USD
Retailer 3$1,011 USD
Retailer 13$1,238 USD
MOH London$1,257 USD

45 data points across 14 retailers

16 retailers$254 USD to $1,257 USD

A
Cheapest Retailer
-
$254 USD
A
Retailer 2
-
$294 USD
View
Retailer 3
-
$315 USD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$315 USD
View
B+
Retailer 5
-
$422 USD
View
A
Retailer 6
-
$475 USD
View
A
Retailer 7
-
$524 USD
View
A
Retailer 8
-
$543 USD
View
A
Retailer 9
-
$593 USD
View
A
Retailer 10
-
$653 USD
View
A
Retailer 11
-
$736 USD
View
B+
Retailer 12
-
$966 USD
View
B+
Retailer 13
-
$1,011 USD
View
B
Retailer 14
-
$1,062 USD
View
B
Retailer 15
-
$1,238 USD
View
Most Expensive
B
MOH London
LG780636510 · Nov 5
$1,257 USD
£990 GBP
View
15 more retailers have this diamond
Prices start from $254 USDSave up to $1,003 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
1.51ct Marquise
$254 USD