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Marquise|Lab Grown|IGI

1.04ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG812607218

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG812607218

Diamond specifications and retailer prices

From £199 GBP
$265 USD
As of October 28, 2026
Save £1,241 GBP (86%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,440 GBP at Queensmith · As of October 27, 2026
View at Queensmith

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 LG812607218 or 812607218. Listed at 21 retailers as of October 27, 2026, with prices from £199 to £1,440, a £1,241 spread on the same certified stone. Queensmith lists it at £1,440. 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 angle36.1°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812607218
Dimensions10.37 × 5.18 × 3.34 mm
L/W Ratio2.00
Girdle conditionFaceted
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
10.37 mm5.18 mm1.04 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812607218
Side View
Table 59.0%Crown 36.1°Girdle: STK-THKPavilion 40.4°Culet: NoneDepth 64.5%

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 28
Current: £417 GBP|Low: £139 GBP|High: £1,314 GBP|Avg: £518 GBP|+6.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 3£199 GBP
Retailer 8£366 GBP
Retailer 2£373 GBP
Retailer 6£380 GBP
Retailer 11£396 GBP
Retailer 1£417 GBP
Retailer 12£453 GBP
Retailer 7£539 GBP
Retailer 9£588 GBP
Retailer 4£749 GBP
Retailer 5£890 GBP
Retailer 10£1,314 GBP

43 data points across 12 retailers

21 retailers£199 GBP to £1,440 GBP

A
Retailer 1
-
£169 GBP
$225 USD
Price last confirmed 27 days ago
A
Retailer 2
-
£175 GBP
$233 USD
View
Price last confirmed 21 days ago
A
Retailer 3
-
£199 GBP
$265 USD
View
Final sale: no returns
A
Retailer 4
-
£204 GBP
$272 USD
View
Price last confirmed 30 days ago
A
Retailer 5
-
£216 GBP
$287 USD
View
Price last confirmed 30 days ago
A
Retailer 6
-
£217 GBP
$289 USD
View
Price last confirmed 17 days ago
A
Retailer 7
-
£217 GBP
$289 USD
View
Price last confirmed 26 days ago
A
Retailer 8
-
£366 GBP
€464 EUR
View
A
Retailer 9
-
£373 GBP
$497 USD
View
A
Retailer 10
-
£380 GBP
ZAR 8,167 ZAR
View
A
Retailer 11
-
£396 GBP
$527 USD
View
A
Retailer 12
-
£417 GBP
View
A
Retailer 13
-
£453 GBP
$603 USD
View
B+
Retailer 14
-
£539 GBP
A$1,104 AUD
View
B+
Retailer 15
-
£588 GBP
$783 USD
View
B+
Retailer 16
-
£701 GBP
$934 USD
View
Price last confirmed 29 days ago
B+
Retailer 17
-
£749 GBP
$998 USD
View
B+
Retailer 18
-
£890 GBP
View
B
Retailer 19
-
£893 GBP
$1,190 USD
View
Price last confirmed 94 days ago
B
Retailer 20
-
£1,314 GBP
$1,750 USD
View
Most Expensive
B
Queensmith
LG812607218 · Oct 27
£1,440 GBP
View
20 more retailers have this diamond
Prices start from £199 GBPSave up to £1,241 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
£199 GBP