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Marquise|Lab Grown|IGI

1.10ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG821643617

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG821643617

Diamond specifications and retailer prices

From £152 GBP
$204 USD
As of November 2, 2026
Save £1,311 GBP (90%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,463 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 1.1ct lab-grown marquise diamond

This 1.1ct 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 LG821643617 or 821643617. Listed at 21 retailers as of November 2, 2026, with prices from £152 to £1,463, a £1,311 spread on the same certified stone. Do Amore Diamonds lists it at £1,463. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.10
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821643617
Dimensions10.82 × 5.44 × 3.39 mm
L/W Ratio1.99
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
10.82 mm5.44 mm1.10 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821643617
Side View
Table 57.0%Crown 33.9°Girdle: THN-MEDPavilion 40.3°Culet: NoneDepth 62.3%

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: Nov 2
Current: £1,463 GBP|Low: £152 GBP|High: £1,463 GBP|Avg: £570 GBP
Do Amore Diamonds
Retailer 2
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November 2, 2026
Retailer 20£152 GBP
Retailer 7£170 GBP
Retailer 19£177 GBP
Retailer 3£189 GBP
Retailer 2£221 GBP
Retailer 9£326 GBP
Retailer 14£360 GBP
Retailer 6£380 GBP
Retailer 13£386 GBP
Retailer 12£479 GBP
Retailer 16£509 GBP
Retailer 18£536 GBP
Retailer 4£671 GBP
Retailer 8£799 GBP
Retailer 5£829 GBP
Retailer 15£836 GBP
Retailer 10£864 GBP
Retailer 17£866 GBP
Retailer 11£990 GBP
Do Amore Diamonds£1,463 GBP

37 data points across 20 retailers

21 retailers£152 GBP to £1,463 GBP

A
Cheapest Retailer
-
£152 GBP
$204 USD
A
Retailer 2
-
£170 GBP
$228 USD
View
Final sale: no returns
A
Retailer 3
-
£177 GBP
$237 USD
View
A
Retailer 4
-
£189 GBP
$253 USD
View
A
Retailer 5
-
£221 GBP
View
A
Retailer 6
-
£326 GBP
$437 USD
View
A
Retailer 7
-
£360 GBP
ZAR 7,798 ZAR
View
A
Retailer 8
-
£380 GBP
$509 USD
View
A
Retailer 9
-
£386 GBP
View
A
Retailer 10
-
£479 GBP
A$988 AUD
View
B+
Retailer 11
-
£509 GBP
A$1,049 AUD
View
B+
Retailer 12
-
£536 GBP
$718 USD
View
B+
Retailer 13
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£671 GBP
$899 USD
View
B+
Retailer 14
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£799 GBP
$1,071 USD
View
B+
Retailer 15
-
£829 GBP
SGD 1,501 SGD
View
B+
Retailer 16
-
£836 GBP
View
Retailer 17
-
£864 GBP
A$1,782 AUD
View
Price last confirmed 28 days ago
B+
Retailer 18
-
£866 GBP
$1,160 USD
View
Retailer 19
-
£990 GBP
View
Price last confirmed 24 days ago
B
Retailer 20
-
£1,142 GBP
$1,530 USD
View
Most Expensive
B
Do Amore Diamonds
27-FE6988A34 · Nov 2
£1,463 GBP
$1,960 USD
View
20 more retailers have this diamond
Prices start from £152 GBPSave up to £1,311 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
1.10ct Marquise
£152 GBP