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Marquise|Lab Grown|IGI

1.01ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG809674572

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG809674572

Diamond specifications and retailer prices

From £443 GBP
$590 USD
As of October 30, 2026
Save £736 GBP (62%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,584 GBP at Brilliant Earth · As of October 16, 2026
View at Brilliant Earth

About this 1.01ct lab-grown marquise diamond

This 1.01ct 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 LG809674572 or 809674572. Listed at 10 retailers as of October 29, 2026, with a 166% 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

1.01
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG809674572
Dimensions10.40 × 5.24 × 3.31 mm
L/W Ratio1.98
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.40 mm5.24 mm1.01 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG809674572
Side View
Table 58.0%Crown 35.7°Girdle: THN-MEDPavilion 40.4°Culet: NoneDepth 63.2%

Caratlytics Score

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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: £1,584 GBP|Low: £180 GBP|High: £1,660 GBP|Avg: £691 GBP|-4.5%
Brilliant Earth
Retailer 2
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October 30, 2026
Retailer 23£225 GBP
Retailer 12£261 GBP
Retailer 7£276 GBP
Retailer 15£279 GBP
Retailer 21£279 GBP
Retailer 4£366 GBP
Retailer 9£394 GBP
Retailer 6£434 GBP
Retailer 2£443 GBP
Retailer 5£443 GBP
Retailer 17£448 GBP
Retailer 8£476 GBP
Retailer 11£489 GBP
Retailer 10£519 GBP
Retailer 24£594 GBP
Retailer 25£897 GBP
Retailer 13£918 GBP
Retailer 16£976 GBP
Retailer 20£982 GBP
Retailer 14£1,131 GBP
Retailer 18£1,135 GBP
Retailer 22£1,159 GBP
Retailer 19£1,179 GBP
Retailer 3£1,407 GBP
Brilliant Earth£1,584 GBP

21 data points across 25 retailers

10 retailers£443 GBP to £1,179 GBP

Retailer 1
-
£225 GBP
$299 USD
Price last confirmed 21 days ago
Retailer 2
-
£279 GBP
$371 USD
View
Price last confirmed 21 days ago
A
Retailer 3
-
£443 GBP
$590 USD
View
Retailer 4
-
£519 GBP
$691 USD
View
Price last confirmed 27 days ago
Retailer 5
-
£594 GBP
$791 USD
View
Price last confirmed 15 days ago
Retailer 6
-
£897 GBP
$1,194 USD
View
Price last confirmed 22 days ago
B
Retailer 7
-
£918 GBP
$1,223 USD
View
B
Retailer 8
-
£1,179 GBP
$1,570 USD
View
Retailer 9
-
£1,407 GBP
$1,874 USD
View
Price last confirmed 13 days ago
Most Expensive
Brilliant Earth
21717681A · Oct 16
£1,584 GBP
$2,110 USD
View
Price last confirmed 13 days ago
9 more retailers have this diamond
Prices start from £443 GBPSave up to £736 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
1.01ct Marquise
£443 GBP