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Marquise|Lab Grown|IGI

1.27ct E FL Marquise Lab Grown Diamond

ID • E/FL • IGI LG818677640

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818677640

Diamond specifications and retailer prices

From £481 GBP
$644 USD
As of October 31, 2026
Save £1,835 GBP (79%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £2,316 GBP at MOH London · As of October 25, 2026
View at MOH London

About this 1.27ct lab-grown marquise diamond

This 1.27ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818677640 or 818677640. Listed at 22 retailers as of October 25, 2026, with prices from £481 to £2,316, a £1,835 spread on the same certified stone. MOH London lists it at £2,316. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.27
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818677640
Dimensions10.85 × 5.81 × 3.59 mm
L/W Ratio1.87
Girdle conditionFaceted
Culet sizeNone
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
10.85 mm5.81 mm1.27 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818677640
Side View
Table 58.0%Crown 34.3°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.8%

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 31
Current: £2,316 GBP|Low: £407 GBP|High: £2,325 GBP|Avg: £1,063 GBP
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
October 31, 2026
Retailer 7£407 GBP
Retailer 3£481 GBP
Retailer 6£522 GBP
Retailer 12£616 GBP
Retailer 16£722 GBP
Retailer 9£770 GBP
Retailer 11£816 GBP
Retailer 15£819 GBP
Retailer 2£832 GBP
Retailer 10£915 GBP
Retailer 13£1,322 GBP
Retailer 4£1,401 GBP
Retailer 8£1,524 GBP
Retailer 5£1,725 GBP
Retailer 14£1,769 GBP
MOH London£2,316 GBP

40 data points across 16 retailers

22 retailers£481 GBP to £2,316 GBP

Retailer 1
-
£407 GBP
$545 USD
Price last confirmed 29 days ago
Retailer 2
-
£422 GBP
$565 USD
View
Price last confirmed 23 days ago
Retailer 3
-
£475 GBP
$636 USD
View
Price last confirmed 33 days ago
A
Retailer 4
-
£481 GBP
$644 USD
View
Final sale: no returns
Retailer 5
-
£519 GBP
$695 USD
View
Price last confirmed 33 days ago
Retailer 6
-
£522 GBP
$700 USD
View
Price last confirmed 14 days ago
Retailer 7
-
£522 GBP
$700 USD
View
Price last confirmed 28 days ago
Retailer 8
-
£522 GBP
$700 USD
View
Price last confirmed 19 days ago
A
Retailer 9
-
£616 GBP
$825 USD
View
A
Retailer 10
-
£722 GBP
$968 USD
View
B+
Retailer 11
-
£770 GBP
A$1,588 AUD
View
B+
Retailer 12
-
£816 GBP
€1,041 EUR
View
B+
Retailer 13
-
£819 GBP
$1,097 USD
View
B+
Retailer 14
-
£832 GBP
View
B+
Retailer 15
-
£915 GBP
ZAR 19,813 ZAR
View
B+
Retailer 16
-
£1,322 GBP
$1,771 USD
View
Retailer 17
-
£1,381 GBP
$1,851 USD
View
Price last confirmed 31 days ago
B
Retailer 18
-
£1,401 GBP
$1,877 USD
View
Retailer 19
-
£1,524 GBP
View
Price last confirmed 17 days ago
B
Retailer 20
-
£1,725 GBP
$2,311 USD
View
B+
Retailer 21
-
£1,769 GBP
$2,370 USD
View
Most Expensive
B
MOH London
LG818677640 · Oct 25
£2,316 GBP
View
21 more retailers have this diamond
Prices start from £481 GBPSave up to £1,835 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
1.27ct Marquise
£481 GBP