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Marquise|Lab Grown|IGI

1.51ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG624415131

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG624415131

Diamond specifications and retailer prices

From £440 GBP
$589 USD
As of October 30, 2026
Save £1,938 GBP (82%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £2,377 GBP 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 LG624415131 or 624415131. Listed at 26 retailers as of October 29, 2026, with prices from £440 to £2,377, a £1,938 spread on the same certified stone. MOH London lists it at £2,377. 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 angle36.8°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG624415131
Dimensions11.69 × 6.00 × 3.80 mm
L/W Ratio1.95
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
11.69 mm6.00 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG624415131
Side View
Table 59.0%Crown 36.8°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 63.3%

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: Oct 30
Current: £2,377 GBP|Low: £440 GBP|High: £2,393 GBP|Avg: £1,189 GBP|-0.4%
MOH London
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October 31, 2026
Retailer 5£440 GBP
Retailer 2£491 GBP
Retailer 25£492 GBP
Retailer 3£545 GBP
Retailer 8£568 GBP
Retailer 9£630 GBP
Retailer 4£642 GBP
Retailer 10£702 GBP
Retailer 19£770 GBP
Retailer 15£833 GBP
Retailer 23£836 GBP
Retailer 13£852 GBP
Retailer 24£936 GBP
Retailer 21£1,269 GBP
Retailer 16£1,289 GBP
Retailer 7£1,352 GBP
Retailer 6£1,433 GBP
Retailer 14£1,739 GBP
Retailer 12£1,763 GBP
Retailer 26£1,780 GBP
Retailer 20£1,798 GBP
Retailer 17£1,814 GBP
Retailer 11£1,816 GBP
Retailer 22£1,881 GBP
Retailer 18£1,904 GBP
MOH London£2,377 GBP

28 data points across 26 retailers

26 retailers£440 GBP to £2,377 GBP

A
Cheapest Retailer
-
£440 GBP
$589 USD
A
Retailer 2
-
£491 GBP
$658 USD
View
Final sale: no returns
A
Retailer 3
-
£492 GBP
$659 USD
View
A
Retailer 4
-
£545 GBP
$730 USD
View
Retailer 5
-
£568 GBP
View
Price last confirmed 18 days ago
A
Retailer 6
-
£630 GBP
HK$6,600 HKD
View
A
Retailer 7
-
£642 GBP
$860 USD
View
A
Retailer 8
-
£702 GBP
$941 USD
View
A
Retailer 9
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£770 GBP
$1,032 USD
View
A
Retailer 10
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£833 GBP
$1,116 USD
View
A
Retailer 11
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£836 GBP
€1,067 EUR
View
A
Retailer 12
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£852 GBP
View
A
Retailer 13
-
£936 GBP
ZAR 20,264 ZAR
View
B+
Retailer 14
-
£1,269 GBP
A$2,616 AUD
View
Retailer 15
-
£1,289 GBP
$1,727 USD
View
Price last confirmed 9 days ago
B+
Retailer 16
-
£1,352 GBP
$1,811 USD
View
B+
Retailer 17
-
£1,433 GBP
$1,920 USD
View
B+
Retailer 18
-
£1,739 GBP
$2,330 USD
View
B+
Retailer 19
-
£1,763 GBP
$2,362 USD
View
B+
Retailer 20
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£1,780 GBP
$2,385 USD
View
B+
Retailer 21
-
£1,798 GBP
A$3,707 AUD
View
B+
Retailer 22
-
£1,814 GBP
SGD 3,285 SGD
View
B+
Retailer 23
-
£1,816 GBP
$2,434 USD
View
B+
Retailer 24
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£1,881 GBP
$2,520 USD
View
B
Retailer 25
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£1,904 GBP
$2,551 USD
View
Most Expensive
B
MOH London
LG624415131 · Oct 29
£2,377 GBP
View
25 more retailers have this diamond
Prices start from £440 GBPSave up to £1,938 GBP

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
£440 GBP