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Marquise|Lab Grown|IGI

1.51ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG818684380

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818684380

Diamond specifications and retailer prices

From $1,113 SGD
HK$6,800 HKD
As of November 1, 2026
Save $3,092 SGD (74%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,205 SGD 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 LG818684380 or 818684380. Listed at 13 retailers as of October 26, 2026, with prices from $1,113 to $4,205, a $3,092 spread on the same certified stone. MOH London lists it at $4,205. 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
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818684380
Dimensions11.84 × 6.08 × 3.65 mm
L/W Ratio1.95
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
11.84 mm6.08 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818684380
Side View
Table 61.0%Crown 33.7°Girdle: MED-STKPavilion 39.2°Culet: NoneDepth 60.0%

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: Nov 1
Current: $4,205 SGD|Low: $1,107 SGD|High: $4,251 SGD|Avg: $2,558 SGD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 7$1,113 SGD
Retailer 10$1,368 SGD
Retailer 11$1,436 SGD
Retailer 6$1,478 SGD
Retailer 2$1,502 SGD
Retailer 3$2,293 SGD
Retailer 8$3,062 SGD
Retailer 4$3,126 SGD
Retailer 9$3,135 SGD
Retailer 5$3,285 SGD
Retailer 12$3,386 SGD
MOH London$4,205 SGD

34 data points across 12 retailers

13 retailers$1,113 SGD to $4,205 SGD

A
Cheapest Retailer
-
$1,113 SGD
HK$6,800 HKD
A
Retailer 2
-
$1,368 SGD
$1,070 USD
View
A
Retailer 3
-
$1,436 SGD
$1,123 USD
View
A
Retailer 4
-
$1,478 SGD
€1,101 EUR
View
A
Retailer 5
-
$1,502 SGD
£925 GBP
View
A
Retailer 6
-
$1,828 SGD
$1,430 USD
View
Retailer 7
-
$2,293 SGD
$1,794 USD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$3,062 SGD
$2,395 USD
View
B+
Retailer 9
-
$3,126 SGD
$2,446 USD
View
Retailer 10
-
$3,135 SGD
A$3,773 AUD
View
Price last confirmed 24 days ago
B+
Retailer 11
-
$3,285 SGD
$2,570 USD
View
B
Retailer 12
-
$3,386 SGD
$2,649 USD
View
Most Expensive
B
MOH London
LG818684380 · Oct 26
$4,205 SGD
£2,590 GBP
View
12 more retailers have this diamond
Prices start from $1,113 SGDSave up to $3,092 SGD

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
$1,113 SGD