Marquise|Lab Grown|IGI

1.55ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG812621506

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG812621506

Diamond specifications and retailer prices

From $692 USD
As of October 30, 2026
Save $2,634 USD (79%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $3,326 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.55ct lab-grown marquise diamond

This 1.55ct 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 LG812621506 or 812621506. Listed at 25 retailers as of October 30, 2026, with prices from $692 to $3,326, a $2,634 spread on the same certified stone. MOH London lists it at $3,326. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812621506
Dimensions11.73 × 6.06 × 3.71 mm
L/W Ratio1.94
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
11.73 mm6.06 mm1.55 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812621506
Side View
Table 61.0%Crown 34.6°Girdle: MediumPavilion 39.7°Culet: NoneDepth 61.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $3,326 USD|Low: $599 USD|High: $3,344 USD|Avg: $1,567 USD|+9.1%
MOH London
Retailer 2
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Retailer 21
November 1, 2026
Retailer 9$624 USD
Retailer 3$692 USD
Retailer 10$774 USD
Retailer 11$774 USD
Retailer 13$885 USD
Retailer 5$1,050 USD
Retailer 4$1,078 USD
Retailer 20$1,174 USD
Retailer 7$1,176 USD
Retailer 2$1,190 USD
Retailer 18$1,317 USD
Retailer 15$1,645 USD
Retailer 16$1,785 USD
Retailer 12$1,829 USD
Retailer 14$2,256 USD
Retailer 21$2,308 USD
Retailer 8$2,420 USD
Retailer 6$2,475 USD
Retailer 19$2,527 USD
Retailer 17$2,800 USD
MOH London$3,326 USD

40 data points across 21 retailers

25 retailers$692 USD to $3,326 USD

Retailer 1
-
$624 USD
Price last confirmed 24 days ago
A
Retailer 2
-
$692 USD
View
Final sale: no returns
Retailer 3
-
$699 USD
View
Price last confirmed 33 days ago
Retailer 4
-
$764 USD
View
Price last confirmed 37 days ago
Retailer 5
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$774 USD
View
Price last confirmed 29 days ago
Retailer 6
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$774 USD
View
Price last confirmed 20 days ago
A
Retailer 7
-
$885 USD
View
A
Retailer 8
-
$1,050 USD
View
A
Retailer 9
-
$1,078 USD
View
A
Retailer 10
-
$1,174 USD
View
Retailer 11
-
$1,176 USD
€1,120 EUR
View
Price last confirmed 7 days ago
A
Retailer 12
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$1,190 USD
£937 GBP
View
A
Retailer 13
-
$1,317 USD
ZAR 21,272 ZAR
View
A
Retailer 14
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$1,645 USD
View
B+
Retailer 15
-
$1,785 USD
A$2,746 AUD
View
Retailer 16
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$1,829 USD
View
Price last confirmed 8 days ago
Retailer 17
-
$2,035 USD
View
Price last confirmed 31 days ago
Retailer 18
-
$2,256 USD
£1,776 GBP
View
Price last confirmed 21 days ago
B+
Retailer 19
-
$2,308 USD
View
B+
Retailer 20
-
$2,420 USD
View
B+
Retailer 21
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$2,469 USD
View
B+
Retailer 22
-
$2,475 USD
View
B+
Retailer 23
-
$2,527 USD
View
B+
Retailer 24
-
$2,800 USD
View
Most Expensive
B
MOH London
LG812621506 · Nov 1
$3,326 USD
£2,619 GBP
View
24 more retailers have this diamond
Prices start from $692 USDSave up to $2,634 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
1.55ct Marquise
$692 USD