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Marquise|Lab Grown|IGI

1.51ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG812620850

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG812620850

Diamond specifications and retailer prices

From $863 SGD
$675 USD
As of November 1, 2026
Save $3,308 SGD (79%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $4,171 SGD 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 LG812620850 or 812620850. Listed at 23 retailers as of October 29, 2026, with prices from $863 to $4,171, a $3,308 spread on the same certified stone. MOH London lists it at $4,171. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812620850
Dimensions11.80 × 6.03 × 3.64 mm
L/W Ratio1.96
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
11.80 mm6.03 mm1.51 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812620850
Side View
Table 61.0%Crown 34.3°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 60.4%

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: Nov 1
Current: $4,171 SGD|Low: $755 SGD|High: $4,283 SGD|Avg: $2,143 SGD|+4.9%
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
November 2, 2026
Retailer 8$787 SGD
Retailer 4$863 SGD
Retailer 9$975 SGD
Retailer 10$975 SGD
Retailer 14$1,093 SGD
Retailer 17$1,345 SGD
Retailer 19$1,432 SGD
Retailer 6$1,480 SGD
Retailer 12$1,483 SGD
Retailer 2$1,643 SGD
Retailer 15$2,050 SGD
Retailer 16$2,226 SGD
Retailer 11$2,846 SGD
Retailer 3$2,901 SGD
Retailer 5$3,090 SGD
Retailer 7$3,101 SGD
Retailer 18$3,170 SGD
Retailer 13$3,479 SGD
MOH London$4,171 SGD

37 data points across 19 retailers

23 retailers$863 SGD to $4,171 SGD

Retailer 1
-
$787 SGD
$615 USD
Price last confirmed 25 days ago
A
Retailer 2
-
$863 SGD
$675 USD
View
Final sale: no returns
Retailer 3
-
$880 SGD
$688 USD
View
Price last confirmed 34 days ago
Retailer 4
-
$921 SGD
$720 USD
View
Price last confirmed 38 days ago
Retailer 5
-
$975 SGD
$762 USD
View
Price last confirmed 30 days ago
Retailer 6
-
$975 SGD
$762 USD
View
Price last confirmed 21 days ago
A
Retailer 7
-
$1,093 SGD
$855 USD
View
A
Retailer 8
-
$1,345 SGD
$1,052 USD
View
A
Retailer 9
-
$1,432 SGD
$1,120 USD
View
Retailer 10
-
$1,480 SGD
€1,102 EUR
View
Price last confirmed 8 days ago
A
Retailer 11
-
$1,483 SGD
£913 GBP
View
A
Retailer 12
-
$1,643 SGD
ZAR 20,749 ZAR
View
A
Retailer 13
-
$2,050 SGD
$1,603 USD
View
B+
Retailer 14
-
$2,226 SGD
A$2,678 AUD
View
Retailer 15
-
$2,302 SGD
$1,800 USD
View
Price last confirmed 9 days ago
Retailer 16
-
$2,564 SGD
$2,005 USD
View
Price last confirmed 33 days ago
Retailer 17
-
$2,846 SGD
£1,752 GBP
View
Price last confirmed 22 days ago
B+
Retailer 18
-
$2,901 SGD
$2,268 USD
View
B+
Retailer 19
-
$3,090 SGD
$2,416 USD
View
B+
Retailer 20
-
$3,101 SGD
$2,425 USD
View
B+
Retailer 21
-
$3,170 SGD
$2,478 USD
View
B+
Retailer 22
-
$3,479 SGD
$2,720 USD
View
Most Expensive
B
MOH London
LG812620850 · Oct 29
$4,171 SGD
£2,568 GBP
View
22 more retailers have this diamond
Prices start from $863 SGDSave up to $3,308 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
$863 SGD