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Marquise|Lab Grown|IGI

1.57ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG812620141

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG812620141

Diamond specifications and retailer prices

From £526 GBP
$700 USD
As of October 30, 2026
Save £1,781 GBP (77%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £2,307 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.57ct lab-grown marquise diamond

This 1.57ct 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 LG812620141 or 812620141. Listed at 23 retailers as of October 29, 2026, with prices from £526 to £2,307, a £1,781 spread on the same certified stone. MOH London lists it at £2,307. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812620141
Dimensions11.87 × 6.01 × 3.73 mm
L/W Ratio1.98
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
11.87 mm6.01 mm1.57 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812620141
Side View
Table 58.0%Crown 35°Girdle: STK-THKPavilion 39.2°Culet: NoneDepth 62.1%

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: £2,307 GBP|Low: £526 GBP|High: £2,628 GBP|Avg: £1,377 GBP|-3.8%
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
October 30, 2026
Retailer 15£526 GBP
Retailer 4£653 GBP
Retailer 16£820 GBP
Retailer 13£902 GBP
Retailer 3£902 GBP
Retailer 10£913 GBP
Retailer 11£1,001 GBP
Retailer 5£1,383 GBP
Retailer 9£1,406 GBP
Retailer 7£1,419 GBP
Retailer 8£1,728 GBP
Retailer 14£1,756 GBP
Retailer 6£1,829 GBP
Retailer 17£1,881 GBP
Retailer 12£1,916 GBP
Retailer 2£2,170 GBP
MOH London£2,307 GBP

38 data points across 17 retailers

23 retailers£526 GBP to £2,307 GBP

Retailer 1
-
£479 GBP
$638 USD
Price last confirmed 22 days ago
Retailer 2
-
£521 GBP
$694 USD
View
Price last confirmed 31 days ago
A
Retailer 3
-
£526 GBP
$700 USD
View
Final sale: no returns
Retailer 4
-
£556 GBP
$740 USD
View
Price last confirmed 27 days ago
Retailer 5
-
£556 GBP
$740 USD
View
Price last confirmed 18 days ago
Retailer 6
-
£562 GBP
$748 USD
View
Price last confirmed 35 days ago
A
Retailer 7
-
£653 GBP
$870 USD
View
A
Retailer 8
-
£820 GBP
$1,092 USD
View
A
Retailer 9
-
£902 GBP
$1,201 USD
View
A
Retailer 10
-
£902 GBP
€1,144 EUR
View
A
Retailer 11
-
£913 GBP
View
A
Retailer 12
-
£1,001 GBP
ZAR 21,535 ZAR
View
Retailer 13
-
£1,383 GBP
A$2,833 AUD
View
Price last confirmed 9 days ago
B+
Retailer 14
-
£1,406 GBP
$1,872 USD
View
B+
Retailer 15
-
£1,419 GBP
$1,890 USD
View
Retailer 16
-
£1,563 GBP
$2,081 USD
View
Price last confirmed 29 days ago
Retailer 17
-
£1,728 GBP
View
Price last confirmed 19 days ago
B+
Retailer 18
-
£1,756 GBP
$2,338 USD
View
B+
Retailer 19
-
£1,829 GBP
$2,435 USD
View
B+
Retailer 20
-
£1,881 GBP
$2,505 USD
View
B+
Retailer 21
-
£1,916 GBP
$2,551 USD
View
B
Retailer 22
-
£2,170 GBP
$2,890 USD
View
Most Expensive
B
MOH London
LG812620141 · Oct 29
£2,307 GBP
View
22 more retailers have this diamond
Prices start from £526 GBPSave up to £1,781 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
1.57ct Marquise
£526 GBP