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Marquise|Lab Grown|IGI

1.05ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG797604663

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG797604663

Diamond specifications and retailer prices

From £376 GBP
$501 USD
As of October 29, 2026
Save £1,276 GBP (77%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,712 GBP at Brilliant Earth · As of October 3, 2026
View at Brilliant Earth

About this 1.05ct lab-grown marquise diamond

This 1.05ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG797604663 or 797604663. Listed at 14 retailers as of October 28, 2026, with a 339% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG797604663
Dimensions10.55 × 5.25 × 3.24 mm
L/W Ratio2.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.55 mm5.25 mm1.05 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG797604663
Side View
Table 62.0%Crown 34.9°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £1,652 GBP|Low: £187 GBP|High: £1,720 GBP|Avg: £801 GBP|-3.9%
Brilliant Earth
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
Retailer 18
Retailer 19
October 8, 2026
Retailer 7£287 GBP
Retailer 15£376 GBP
Retailer 4£436 GBP
Retailer 17£449 GBP
Retailer 16£460 GBP
Retailer 9£479 GBP
Retailer 19£493 GBP
Retailer 6£508 GBP
Retailer 18£516 GBP
Retailer 5£540 GBP
Retailer 13£618 GBP
Retailer 10£963 GBP
Retailer 8£1,015 GBP
Retailer 2£1,020 GBP
Retailer 11£1,160 GBP
Retailer 3£1,171 GBP
Retailer 12£1,204 GBP
Retailer 14£1,463 GBP
Brilliant Earth£1,652 GBP

18 data points across 19 retailers

14 retailers£376 GBP to £1,652 GBP

A
Cheapest Retailer
-
£376 GBP
$501 USD
A
Retailer 2
-
£460 GBP
$612 USD
View
B+
Retailer 3
-
£493 GBP
ZAR 10,608 ZAR
View
Price last confirmed 28 days ago
B+
Retailer 4
-
£516 GBP
A$1,058 AUD
View
B+
Retailer 5
-
£540 GBP
$719 USD
View
Price last confirmed 26 days ago
B+
Retailer 6
-
£618 GBP
$822 USD
View
B
Retailer 7
-
£963 GBP
$1,283 USD
View
Price last confirmed 27 days ago
B
Retailer 8
-
£1,020 GBP
CA$1,887 CAD
View
B
Retailer 9
-
£1,160 GBP
$1,545 USD
View
Price last confirmed 27 days ago
B
Retailer 10
-
£1,171 GBP
View
Price last confirmed 28 days ago
B
Retailer 11
-
£1,204 GBP
$1,604 USD
View
B
Retailer 12
-
£1,463 GBP
$1,948 USD
View
B
Retailer 13
-
£1,652 GBP
$2,200 USD
View
Most Expensive
B
Brilliant Earth
20481630A · Oct 3
£1,712 GBP
$2,280 USD
View
Price last confirmed 26 days ago
13 more retailers have this diamond
Prices start from £376 GBPSave up to £1,276 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
1.05ct Marquise
£376 GBP