Marquise|Lab Grown|IGI

1.51ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG836619913

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG836619913

Diamond specifications and retailer prices

From $738 USD
As of October 30, 2026
Save $2,822 USD (79%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $3,560 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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836619913 or 836619913. Listed at 21 retailers as of October 30, 2026, with prices from $738 to $3,560, a $2,822 spread on the same certified stone. Brilliant Earth lists it at $3,560. 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
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle42°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836619913
Dimensions11.52 × 5.99 × 3.88 mm
L/W Ratio1.92
Girdle conditionFaceted
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
11.52 mm5.99 mm1.51 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836619913
Side View
Table 59.0%Crown 34.7°Girdle: MED-STKPavilion 42°Culet: NoneDepth 64.8%

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: Oct 30
Current: $3,560 USD|Low: $738 USD|High: $3,850 USD|Avg: $2,085 USD|-7.5%
Brilliant Earth
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
Retailer 18
Retailer 19
Retailer 20
October 30, 2026
Retailer 6$738 USD
Retailer 3$803 USD
Retailer 20$856 USD
Retailer 11$868 USD
Retailer 17$1,035 USD
Retailer 4$1,166 USD
Retailer 2$1,374 USD
Retailer 19$1,386 USD
Retailer 18$1,420 USD
Retailer 14$1,574 USD
Retailer 7$1,851 USD
Retailer 12$2,407 USD
Retailer 9$2,667 USD
Retailer 15$2,826 USD
Retailer 10$2,951 USD
Retailer 8$3,112 USD
Retailer 16$3,245 USD
Retailer 5$3,316 USD
Retailer 13$3,379 USD
Brilliant Earth$3,560 USD

29 data points across 20 retailers

21 retailers$738 USD to $3,560 USD

A
Cheapest Retailer
-
$738 USD
A
Retailer 2
-
$803 USD
View
A
Retailer 3
-
$856 USD
View
A
Retailer 4
-
$868 USD
View
Final sale: no returns
Retailer 5
-
$892 USD
View
Price last confirmed 13 days ago
A
Retailer 6
-
$1,035 USD
View
A
Retailer 7
-
$1,166 USD
View
A
Retailer 8
-
$1,374 USD
£1,082 GBP
View
A
Retailer 9
-
$1,386 USD
View
A
Retailer 10
-
$1,420 USD
€1,352 EUR
View
A
Retailer 11
-
$1,574 USD
ZAR 25,422 ZAR
View
B+
Retailer 12
-
$1,851 USD
View
B+
Retailer 13
-
$2,407 USD
View
B
Retailer 14
-
$2,667 USD
£2,100 GBP
View
B+
Retailer 15
-
$2,826 USD
View
B
Retailer 16
-
$2,951 USD
View
B
Retailer 17
-
$3,112 USD
SGD 4,205 SGD
View
B
Retailer 18
-
$3,245 USD
View
B
Retailer 19
-
$3,316 USD
View
B
Retailer 20
-
$3,379 USD
£2,661 GBP
View
Most Expensive
B
Brilliant Earth
21589183A · Oct 30
$3,560 USD
View
20 more retailers have this diamond
Prices start from $738 USDSave up to $2,822 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
$738 USD