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Marquise|Lab Grown|IGI

1.51ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG629494686

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG629494686

Diamond specifications and retailer prices

From $658 USD
As of October 30, 2026
Save $2,527 USD (79%) vs most expensive(unlock to see where)
31 retailers carry this diamond
Most expensive: $3,185 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG629494686 or 629494686. Listed at 31 retailers as of October 29, 2026, with prices from $658 to $3,185, a $2,527 spread on the same certified stone. MOH London lists it at $3,185. 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 angle34.9°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG629494686
Dimensions11.96 × 5.99 × 3.65 mm
L/W Ratio2.00
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
11.96 mm5.99 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG629494686
Side View
Table 60.0%Crown 34.9°Girdle: STK-THKPavilion 39.1°Culet: NoneDepth 60.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $3,185 USD|Low: $589 USD|High: $3,207 USD|Avg: $1,667 USD|-0.4%
MOH London
Retailer 2
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Retailer 24
October 31, 2026
Retailer 12$589 USD
Retailer 23$658 USD
Retailer 11$730 USD
Retailer 5$845 USD
Retailer 3$860 USD
Retailer 6$941 USD
Retailer 17$1,032 USD
Retailer 10$1,116 USD
Retailer 20$1,120 USD
Retailer 19$1,141 USD
Retailer 22$1,254 USD
Retailer 21$1,279 USD
Retailer 13$1,700 USD
Retailer 14$1,727 USD
Retailer 4$1,811 USD
Retailer 9$2,330 USD
Retailer 8$2,362 USD
Retailer 24$2,385 USD
Retailer 2$2,410 USD
Retailer 15$2,431 USD
Retailer 7$2,434 USD
Retailer 18$2,520 USD
Retailer 16$2,551 USD
MOH London$3,185 USD

31 data points across 24 retailers

31 retailers$658 USD to $3,185 USD

Retailer 1
-
$589 USD
Price last confirmed 23 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
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$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
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$1,120 USD
€1,067 EUR
View
A
Retailer 14
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$1,141 USD
£898 GBP
View
A
Retailer 15
-
$1,254 USD
ZAR 20,264 ZAR
View
A
Retailer 16
-
$1,279 USD
A$1,968 AUD
View
B+
Retailer 17
-
$1,700 USD
A$2,616 AUD
View
B+
Retailer 18
-
$1,727 USD
View
B+
Retailer 19
-
$1,811 USD
View
Retailer 20
-
$1,920 USD
View
Price last confirmed 20 days ago
B+
Retailer 21
-
$1,920 USD
View
Retailer 22
-
$1,990 USD
View
Price last confirmed 30 days ago
B+
Retailer 23
-
$2,330 USD
View
B+
Retailer 24
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$2,362 USD
View
B+
Retailer 25
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$2,385 USD
View
B+
Retailer 26
-
$2,410 USD
A$3,707 AUD
View
B+
Retailer 27
-
$2,431 USD
SGD 3,285 SGD
View
B+
Retailer 28
-
$2,434 USD
View
B+
Retailer 29
-
$2,520 USD
View
B
Retailer 30
-
$2,551 USD
View
Most Expensive
B
MOH London
LG629494686 · Oct 29
$3,185 USD
£2,508 GBP
View
30 more retailers have this diamond
Prices start from $658 USDSave up to $2,527 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