Marquise|Lab Grown|IGI

1.51ct E FL Marquise Lab Grown Diamond

VG • E/FL • IGI LG823695036

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG823695036

Diamond specifications and retailer prices

From $804 USD
As of October 30, 2026
Save $3,046 USD (79%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $3,850 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 very-good cut grade and certified by IGI LG823695036 or 823695036. Listed at 21 retailers as of October 30, 2026, with prices from $804 to $3,850, a $3,046 spread on the same certified stone. Brilliant Earth lists it at $3,850. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
E
Color
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823695036
Dimensions11.42 × 6.02 × 3.79 mm
L/W Ratio1.90
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
11.42 mm6.02 mm1.51 ctE / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823695036
Side View
Table 59.0%Crown 35.2°Girdle: STK-THKPavilion 39.9°Culet: NoneDepth 63.0%

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: Oct 30
Current: $3,850 USD|Low: $804 USD|High: $4,117 USD|Avg: $2,352 USD|-0.3%
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 7$804 USD
Retailer 3$875 USD
Retailer 9$900 USD
Retailer 19$933 USD
Retailer 8$1,088 USD
Retailer 15$1,110 USD
Retailer 4$1,188 USD
Retailer 2$1,431 USD
Retailer 17$1,481 USD
Retailer 18$1,504 USD
Retailer 14$1,715 USD
Retailer 11$2,218 USD
Retailer 20$2,623 USD
Retailer 6$2,896 USD
Retailer 16$2,920 USD
Retailer 10$3,122 USD
Retailer 12$3,135 USD
Retailer 5$3,227 USD
Retailer 13$3,515 USD
Brilliant Earth$3,850 USD

35 data points across 20 retailers

21 retailers$804 USD to $3,850 USD

A
Cheapest Retailer
-
$804 USD
A
Retailer 2
-
$875 USD
View
A
Retailer 3
-
$900 USD
View
Final sale: no returns
A
Retailer 4
-
$933 USD
View
Retailer 5
-
$950 USD
View
Price last confirmed 13 days ago
A
Retailer 6
-
$1,088 USD
HK$8,500 HKD
View
A
Retailer 7
-
$1,110 USD
View
A
Retailer 8
-
$1,188 USD
View
A
Retailer 9
-
$1,431 USD
£1,127 GBP
View
A
Retailer 10
-
$1,481 USD
€1,410 EUR
View
A
Retailer 11
-
$1,504 USD
View
B+
Retailer 12
-
$1,715 USD
ZAR 27,702 ZAR
View
B+
Retailer 13
-
$2,218 USD
View
B
Retailer 14
-
$2,623 USD
View
B
Retailer 15
-
$2,896 USD
£2,280 GBP
View
B
Retailer 16
-
$2,920 USD
View
B
Retailer 17
-
$3,122 USD
View
B
Retailer 18
-
$3,135 USD
SGD 4,236 SGD
View
B
Retailer 19
-
$3,227 USD
View
B
Retailer 20
-
$3,515 USD
£2,768 GBP
View
Most Expensive
B
Brilliant Earth
21309804A · Oct 30
$3,850 USD
View
20 more retailers have this diamond
Prices start from $804 USDSave up to $3,046 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
$804 USD