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Marquise|Lab Grown|IGI

1.51ct E FL Marquise Lab Grown Diamond

GD • E/FL • IGI LG768630028

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG768630028

Diamond specifications and retailer prices

From $886 USD
As of October 29, 2026
Save $2,629 USD (75%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,515 USD at MOH London · As of October 29, 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 E colour (colourless) and FL clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG768630028 or 768630028. Listed at 14 retailers as of October 29, 2026, with prices from $886 to $3,515, a $2,629 spread on the same certified stone. MOH London lists it at $3,515. 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
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768630028
Dimensions11.60 × 5.94 × 3.81 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
11.60 mm5.94 mm1.51 ctE / FL
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768630028
Side View
Table 58.0%Crown 35.8°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 64.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $3,515 USD|Low: $886 USD|High: $4,610 USD|Avg: $2,551 USD|-16.8%
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
October 30, 2026
Retailer 14$886 USD
Retailer 11$1,084 USD
Retailer 4$1,216 USD
Retailer 3$1,410 USD
Retailer 7$1,431 USD
Retailer 8$1,498 USD
Retailer 9$1,715 USD
Retailer 13$2,392 USD
Retailer 6$2,857 USD
Retailer 10$3,215 USD
Retailer 5$3,333 USD
Retailer 2$3,380 USD
Retailer 12$3,458 USD
MOH London$3,515 USD

43 data points across 14 retailers

14 retailers$886 USD to $3,515 USD

A
Cheapest Retailer
-
$886 USD
A
Retailer 2
-
$1,084 USD
View
A
Retailer 3
-
$1,216 USD
HK$9,500 HKD
View
B+
Retailer 4
-
$1,410 USD
View
B+
Retailer 5
-
$1,431 USD
£1,127 GBP
View
B+
Retailer 6
-
$1,498 USD
€1,427 EUR
View
B+
Retailer 7
-
$1,715 USD
ZAR 27,702 ZAR
View
B
Retailer 8
-
$2,392 USD
View
B
Retailer 9
-
$2,857 USD
View
B
Retailer 10
-
$3,215 USD
View
B
Retailer 11
-
$3,333 USD
View
B
Retailer 12
-
$3,380 USD
View
B
Retailer 13
-
$3,458 USD
View
Most Expensive
B
MOH London
LG768630028 · Oct 29
$3,515 USD
£2,768 GBP
View
13 more retailers have this diamond
Prices start from $886 USDSave up to $2,629 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
$886 USD