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Marquise|Lab Grown|IGI

1.04ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG639433802

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG639433802

Diamond specifications and retailer prices

From £182 GBP
$242 USD
As of October 29, 2026
Save £1,072 GBP (86%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: £1,254 GBP at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

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 LG639433802 or 639433802. Listed at 30 retailers as of October 28, 2026, with prices from £182 to £1,254, a £1,072 spread on the same certified stone. Brilliant Earth lists it at £1,254. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG639433802
Dimensions10.36 × 5.29 × 3.32 mm
L/W Ratio1.96
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
10.36 mm5.29 mm1.04 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG639433802
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.8%

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 29
Current: £1,254 GBP|Low: £163 GBP|High: £1,337 GBP|Avg: £540 GBP|-6.2%
Brilliant Earth
Retailer 2
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Retailer 6
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Retailer 21
Retailer 22
October 30, 2026
Retailer 11£163 GBP
Retailer 21£182 GBP
Retailer 8£202 GBP
Retailer 7£240 GBP
Retailer 6£285 GBP
Retailer 16£341 GBP
Retailer 19£348 GBP
Retailer 2£375 GBP
Retailer 4£379 GBP
Retailer 12£436 GBP
Retailer 9£448 GBP
Retailer 18£482 GBP
Retailer 20£494 GBP
Retailer 14£571 GBP
Retailer 3£653 GBP
Retailer 10£690 GBP
Retailer 15£732 GBP
Retailer 13£795 GBP
Retailer 17£815 GBP
Retailer 22£852 GBP
Retailer 5£938 GBP
Brilliant Earth£1,254 GBP

36 data points across 22 retailers

30 retailers£182 GBP to £1,254 GBP

Retailer 1
-
£163 GBP
$217 USD
Price last confirmed 21 days ago
A
Retailer 2
-
£182 GBP
$242 USD
View
Final sale: no returns
Retailer 3
-
£194 GBP
$258 USD
View
Price last confirmed 30 days ago
Retailer 4
-
£202 GBP
$269 USD
View
Price last confirmed 21 days ago
Retailer 5
-
£202 GBP
$269 USD
View
Price last confirmed 19 days ago
Retailer 6
-
£225 GBP
$300 USD
View
Price last confirmed 31 days ago
Retailer 7
-
£237 GBP
$316 USD
View
Price last confirmed 31 days ago
A
Retailer 8
-
£240 GBP
HK$2,500 HKD
View
A
Retailer 9
-
£285 GBP
$380 USD
View
A
Retailer 10
-
£341 GBP
€433 EUR
View
A
Retailer 11
-
£348 GBP
ZAR 7,477 ZAR
View
Retailer 12
-
£366 GBP
View
Price last confirmed 14 days ago
A
Retailer 13
-
£375 GBP
View
A
Retailer 14
-
£379 GBP
$505 USD
View
A
Retailer 15
-
£436 GBP
$581 USD
View
A
Retailer 16
-
£448 GBP
$596 USD
View
A
Retailer 17
-
£482 GBP
A$988 AUD
View
A
Retailer 18
-
£494 GBP
A$1,013 AUD
View
B+
Retailer 19
-
£571 GBP
SGD 1,028 SGD
View
B+
Retailer 20
-
£650 GBP
$866 USD
View
Retailer 21
-
£650 GBP
$866 USD
View
Price last confirmed 19 days ago
B+
Retailer 22
-
£653 GBP
$869 USD
View
B+
Retailer 23
-
£690 GBP
$919 USD
View
B+
Retailer 24
-
£732 GBP
$975 USD
View
Retailer 25
-
£773 GBP
$1,030 USD
View
Price last confirmed 29 days ago
B+
Retailer 26
-
£795 GBP
A$1,628 AUD
View
B+
Retailer 27
-
£815 GBP
View
B+
Retailer 28
-
£852 GBP
$1,135 USD
View
B
Retailer 29
-
£938 GBP
$1,249 USD
View
Most Expensive
B
Brilliant Earth
11000781A · Oct 28
£1,254 GBP
$1,670 USD
View
29 more retailers have this diamond
Prices start from £182 GBPSave up to £1,072 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
£182 GBP