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Marquise|Lab Grown|IGI

1.04ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG639430545

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG639430545

Diamond specifications and retailer prices

From £233 GBP
$310 USD
As of October 27, 2026
Save £1,832 GBP (89%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £2,065 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.04ct lab-grown marquise diamond

This 1.04ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG639430545 or 639430545. Listed at 23 retailers as of October 27, 2026, with prices from £233 to £2,065, a £1,832 spread on the same certified stone. Do Amore Diamonds lists it at £2,065. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.04
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG639430545
Dimensions5.11 × 5.11 × 10.89 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.11 mm5.11 mm1.04 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG639430545
Side View
Table 63.0%Crown 34.8°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.8%

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 27
Current: £570 GBP|Low: £224 GBP|High: £1,292 GBP|Avg: £546 GBP|+1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 2£233 GBP
Retailer 9£266 GBP
Retailer 4£288 GBP
Retailer 12£288 GBP
Retailer 7£339 GBP
Retailer 10£364 GBP
Retailer 5£384 GBP
Retailer 8£547 GBP
Retailer 1£570 GBP
Retailer 6£774 GBP
Retailer 3£870 GBP
Retailer 13£887 GBP
Retailer 11£1,278 GBP

34 data points across 13 retailers

23 retailers£233 GBP to £2,065 GBP

A
Retailer 1
-
£233 GBP
$310 USD
Price last confirmed 21 days ago
A
Retailer 2
-
£233 GBP
$310 USD
View
A
Retailer 3
-
£266 GBP
$354 USD
View
Final sale: no returns
A
Retailer 4
-
£270 GBP
$360 USD
View
Price last confirmed 30 days ago
A
Retailer 5
-
£288 GBP
$384 USD
View
A
Retailer 6
-
£288 GBP
$384 USD
View
Price last confirmed 26 days ago
A
Retailer 7
-
£339 GBP
View
A
Retailer 8
-
£364 GBP
$485 USD
View
A
Retailer 9
-
£364 GBP
$485 USD
View
A
Retailer 10
-
£384 GBP
$512 USD
View
A
Retailer 11
-
£401 GBP
$534 USD
View
B+
Retailer 12
-
£547 GBP
ZAR 11,777 ZAR
View
B+
Retailer 13
-
£570 GBP
View
B+
Retailer 14
-
£774 GBP
A$1,585 AUD
View
B+
Retailer 15
-
£870 GBP
A$1,782 AUD
View
Price last confirmed 24 days ago
B
Retailer 16
-
£887 GBP
$1,181 USD
View
B
Retailer 17
-
£1,024 GBP
$1,364 USD
View
Price last confirmed 28 days ago
B
Retailer 18
-
£1,024 GBP
$1,364 USD
View
B
Retailer 19
-
£1,144 GBP
$1,523 USD
View
B
Retailer 20
-
£1,156 GBP
$1,540 USD
View
B
Retailer 21
-
£1,236 GBP
View
B
Retailer 22
-
£1,278 GBP
View
Most Expensive
B
Do Amore Diamonds
27-FFE5E2026 · Oct 29
£2,065 GBP
$2,750 USD
View
22 more retailers have this diamond
Prices start from £233 GBPSave up to £1,832 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
1.04ct Marquise
£233 GBP