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Marquise|Lab Grown|IGI

1.51ct E VS1 Marquise Lab Grown Diamond

ID • E/VS1 • IGI LG570370349

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG570370349

Diamond specifications and retailer prices

From $277 USD
As of November 4, 2026
Save $1,313 USD (83%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $1,590 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

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 E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG570370349 or 570370349. Listed at 25 retailers as of October 30, 2026, with prices from $277 to $1,590, a $1,313 spread on the same certified stone. Brilliant Earth lists it at $1,590. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG570370349
Dimensions11.72 × 6.01 × 3.79 mm
L/W Ratio1.95
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
11.72 mm6.01 mm1.51 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG570370349
Side View
Table 59.5%Crown 36.2°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 63.1%

Caratlytics Score

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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: $1,590 USD|Low: $277 USD|High: $2,030 USD|Avg: $723 USD|-21.7%
Brilliant Earth
Retailer 2
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Retailer 24
November 5, 2026
Retailer 24$277 USD
Retailer 23$309 USD
Retailer 8$321 USD
Retailer 13$343 USD
Retailer 22$396 USD
Retailer 21$400 USD
Retailer 6$485 USD
Retailer 20$500 USD
Retailer 2$530 USD
Retailer 16$586 USD
Retailer 18$594 USD
Retailer 15$613 USD
Retailer 17$616 USD
Retailer 12$764 USD
Retailer 11$804 USD
Retailer 4$1,054 USD
Retailer 3$1,103 USD
Retailer 9$1,129 USD
Retailer 14$1,153 USD
Retailer 7$1,157 USD
Retailer 10$1,320 USD
Retailer 19$1,371 USD
Retailer 5$1,438 USD
Brilliant Earth$1,590 USD

28 data points across 24 retailers

25 retailers$277 USD to $1,590 USD

A
Cheapest Retailer
-
$277 USD
A
Retailer 2
-
$309 USD
View
Final sale: no returns
A
Retailer 3
-
$321 USD
View
A
Retailer 4
-
$343 USD
View
A
Retailer 5
-
$396 USD
View
A
Retailer 6
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$400 USD
View
A
Retailer 7
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$485 USD
View
A
Retailer 8
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$500 USD
View
A
Retailer 9
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$530 USD
View
Retailer 10
-
$586 USD
View
Price last confirmed 7 days ago
A
Retailer 11
-
$594 USD
View
A
Retailer 12
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$613 USD
View
A
Retailer 13
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$616 USD
View
B+
Retailer 14
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$764 USD
View
B+
Retailer 15
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$804 USD
View
Retailer 16
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$1,022 USD
View
Price last confirmed 28 days ago
B
Retailer 17
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$1,054 USD
View
B+
Retailer 18
-
$1,103 USD
View
B
Retailer 19
-
$1,129 USD
View
B
Retailer 20
-
$1,153 USD
View
B
Retailer 21
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$1,157 USD
View
B
Retailer 22
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$1,320 USD
View
B
Retailer 23
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$1,371 USD
View
B
Retailer 24
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$1,438 USD
View
Most Expensive
B
Brilliant Earth
6979233A · Oct 30
$1,590 USD
View
24 more retailers have this diamond
Prices start from $277 USDSave up to $1,313 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
$277 USD