CaratHunter
Plans
Marquise|Lab Grown|IGI

1.51ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG644456133

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG644456133

Diamond specifications and retailer prices

From $658 USD
As of October 30, 2026
Save $2,514 USD (79%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: $3,172 USD at MOH London · As of October 26, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG644456133 or 644456133. Listed at 30 retailers as of October 26, 2026, with prices from $658 to $3,172, a $2,514 spread on the same certified stone. MOH London lists it at $3,172. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644456133
Dimensions11.68 × 5.92 × 3.77 mm
L/W Ratio1.97
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
11.68 mm5.92 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644456133
Side View
Table 62.0%Crown 37.1°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.7%

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 30
Current: $3,172 USD|Low: $589 USD|High: $3,325 USD|Avg: $1,717 USD|-4.6%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
October 31, 2026
Retailer 11$589 USD
Retailer 22$658 USD
Retailer 10$730 USD
Retailer 4$845 USD
Retailer 24$860 USD
Retailer 5$941 USD
Retailer 16$1,032 USD
Retailer 9$1,116 USD
Retailer 20$1,120 USD
Retailer 2$1,141 USD
Retailer 21$1,254 USD
Retailer 18$1,700 USD
Retailer 12$1,727 USD
Retailer 3$1,811 USD
Retailer 17$2,195 USD
Retailer 8$2,330 USD
Retailer 7$2,362 USD
Retailer 23$2,385 USD
Retailer 13$2,410 USD
Retailer 14$2,431 USD
Retailer 6$2,434 USD
Retailer 19$2,470 USD
Retailer 15$2,551 USD
MOH London$3,172 USD

34 data points across 24 retailers

30 retailers$658 USD to $3,172 USD

Retailer 1
-
$589 USD
Price last confirmed 22 days ago
Retailer 2
-
$610 USD
View
Price last confirmed 31 days ago
A
Retailer 3
-
$658 USD
View
Final sale: no returns
Retailer 4
-
$683 USD
View
Price last confirmed 32 days ago
Retailer 5
-
$730 USD
View
Price last confirmed 22 days ago
Retailer 6
-
$730 USD
View
Price last confirmed 20 days ago
Retailer 7
-
$747 USD
View
Price last confirmed 32 days ago
A
Retailer 8
-
$845 USD
HK$6,600 HKD
View
A
Retailer 9
-
$860 USD
View
A
Retailer 10
-
$941 USD
View
A
Retailer 11
-
$1,032 USD
View
A
Retailer 12
-
$1,116 USD
View
A
Retailer 13
-
$1,120 USD
€1,067 EUR
View
A
Retailer 14
-
$1,141 USD
£899 GBP
View
A
Retailer 15
-
$1,254 USD
ZAR 20,264 ZAR
View
B+
Retailer 16
-
$1,700 USD
A$2,616 AUD
View
Retailer 17
-
$1,727 USD
View
Price last confirmed 7 days ago
B+
Retailer 18
-
$1,811 USD
View
Retailer 19
-
$1,920 USD
View
Price last confirmed 20 days ago
B+
Retailer 20
-
$1,920 USD
View
Retailer 21
-
$1,990 USD
View
Price last confirmed 30 days ago
B+
Retailer 22
-
$2,330 USD
View
B+
Retailer 23
-
$2,362 USD
View
B+
Retailer 24
-
$2,385 USD
View
B+
Retailer 25
-
$2,410 USD
A$3,707 AUD
View
B+
Retailer 26
-
$2,431 USD
SGD 3,285 SGD
View
B+
Retailer 27
-
$2,434 USD
View
B+
Retailer 28
-
$2,470 USD
View
B
Retailer 29
-
$2,551 USD
View
Most Expensive
B
MOH London
LG644456133 · Oct 26
$3,172 USD
£2,498 GBP
View
29 more retailers have this diamond
Prices start from $658 USDSave up to $2,514 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
$658 USD