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Marquise|Lab Grown|IGI

1.55ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG648499160

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG648499160

Diamond specifications and retailer prices

From £566 GBP
$754 USD
As of October 28, 2026
Save £1,887 GBP (77%) vs most expensive(unlock to see where)
31 retailers carry this diamond
Most expensive: £2,453 GBP at MOH London · As of October 29, 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 LG648499160 or 648499160. Listed at 31 retailers as of October 28, 2026, with prices from £566 to £2,453, a £1,887 spread on the same certified stone. MOH London lists it at £2,453. 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
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG648499160
Dimensions11.70 × 6.01 × 3.81 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
11.70 mm6.01 mm1.55 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG648499160
Side View
Table 61.0%Crown 36.3°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 28
Current: £2,453 GBP|Low: £453 GBP|High: £2,472 GBP|Avg: £1,296 GBP|+5.6%
MOH London
Retailer 2
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October 29, 2026
Retailer 11£453 GBP
Retailer 10£562 GBP
Retailer 19£566 GBP
Retailer 20£586 GBP
Retailer 24£644 GBP
Retailer 3£720 GBP
Retailer 17£794 GBP
Retailer 13£863 GBP
Retailer 2£877 GBP
Retailer 9£878 GBP
Retailer 18£966 GBP
Retailer 21£1,316 GBP
Retailer 12£1,332 GBP
Retailer 23£1,394 GBP
Retailer 16£1,637 GBP
Retailer 7£1,794 GBP
Retailer 22£1,798 GBP
Retailer 6£1,817 GBP
Retailer 4£1,863 GBP
Retailer 14£1,869 GBP
Retailer 5£1,879 GBP
Retailer 15£1,967 GBP
Retailer 8£2,320 GBP
MOH London£2,453 GBP

34 data points across 24 retailers

31 retailers£566 GBP to £2,453 GBP

A
Retailer 1
-
£453 GBP
$603 USD
Price last confirmed 21 days ago
A
Retailer 2
-
£470 GBP
$626 USD
View
Price last confirmed 29 days ago
A
Retailer 3
-
£511 GBP
$681 USD
View
Price last confirmed 30 days ago
A
Retailer 4
-
£562 GBP
$748 USD
View
Price last confirmed 21 days ago
A
Retailer 5
-
£562 GBP
$748 USD
View
Price last confirmed 19 days ago
A
Retailer 6
-
£566 GBP
$754 USD
View
Final sale: no returns
A
Retailer 7
-
£575 GBP
$766 USD
View
Price last confirmed 30 days ago
A
Retailer 8
-
£586 GBP
$780 USD
View
A
Retailer 9
-
£644 GBP
HK$6,700 HKD
View
A
Retailer 10
-
£720 GBP
$959 USD
View
A
Retailer 11
-
£794 GBP
$1,058 USD
View
A
Retailer 12
-
£863 GBP
€1,094 EUR
View
A
Retailer 13
-
£877 GBP
View
A
Retailer 14
-
£878 GBP
$1,169 USD
View
A
Retailer 15
-
£966 GBP
ZAR 20,776 ZAR
View
B+
Retailer 16
-
£1,316 GBP
A$2,697 AUD
View
Price last confirmed 8 days ago
B+
Retailer 17
-
£1,332 GBP
$1,773 USD
View
B+
Retailer 18
-
£1,394 GBP
$1,857 USD
View
B+
Retailer 19
-
£1,478 GBP
$1,968 USD
View
Price last confirmed 19 days ago
B+
Retailer 20
-
£1,478 GBP
$1,968 USD
View
B+
Retailer 21
-
£1,532 GBP
$2,040 USD
View
Price last confirmed 29 days ago
B+
Retailer 22
-
£1,637 GBP
View
Price last confirmed 22 days ago
B+
Retailer 23
-
£1,794 GBP
$2,389 USD
View
B+
Retailer 24
-
£1,798 GBP
$2,395 USD
View
B+
Retailer 25
-
£1,817 GBP
$2,420 USD
View
B+
Retailer 26
-
£1,863 GBP
$2,481 USD
View
B+
Retailer 27
-
£1,869 GBP
SGD 3,364 SGD
View
B+
Retailer 28
-
£1,879 GBP
A$3,850 AUD
View
Price last confirmed 21 days ago
B
Retailer 29
-
£1,967 GBP
$2,619 USD
View
B
Retailer 30
-
£2,320 GBP
$3,090 USD
View
Most Expensive
B
MOH London
LG648499160 · Oct 29
£2,453 GBP
View
30 more retailers have this diamond
Prices start from £566 GBPSave up to £1,887 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
1.55ct Marquise
£566 GBP