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Marquise|Lab Grown|IGI

1.10ct E VVS1 Marquise Lab Grown Diamond

EX • E/VVS1 • IGI LG818639520

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818639520

Diamond specifications and retailer prices

From £145 GBP
$194 USD
As of October 30, 2026
Save £732 GBP (83%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £1,172 GBP at Brilliant Earth · As of September 28, 2026
View at Brilliant Earth

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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG818639520 or 818639520. Listed at 23 retailers as of October 30, 2026, with a 506% 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

1.10
Carat
E
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818639520
Dimensions10.92 × 5.29 × 3.38 mm
L/W Ratio2.06
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.92 mm5.29 mm1.10 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818639520
Side View
Table 56.0%Crown 33.9°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 63.9%

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 30
Current: £432 GBP|Low: £162 GBP|High: £877 GBP|Avg: £466 GBP|+4.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 31, 2026
Retailer 3£162 GBP
Retailer 2£221 GBP
Retailer 10£243 GBP
Retailer 8£295 GBP
Retailer 11£308 GBP
Retailer 7£328 GBP
Retailer 6£361 GBP
Retailer 1£432 GBP
Retailer 12£438 GBP
Retailer 14£638 GBP
Retailer 9£667 GBP
Retailer 5£705 GBP
Retailer 13£841 GBP
Retailer 4£877 GBP

44 data points across 14 retailers

23 retailers£145 GBP to £877 GBP

A
Cheapest Retailer
-
£145 GBP
$194 USD
A
Retailer 2
-
£162 GBP
$217 USD
View
Final sale: no returns
A
Retailer 3
-
£168 GBP
$225 USD
View
A
Retailer 4
-
£180 GBP
$241 USD
View
A
Retailer 5
-
£180 GBP
$241 USD
View
Retailer 6
-
£221 GBP
View
Price last confirmed 14 days ago
B+
Retailer 7
-
£243 GBP
$325 USD
View
A
Retailer 8
-
£295 GBP
€377 EUR
View
A
Retailer 9
-
£308 GBP
ZAR 6,677 ZAR
View
A
Retailer 10
-
£328 GBP
View
A
Retailer 11
-
£352 GBP
$471 USD
View
B+
Retailer 12
-
£361 GBP
$484 USD
View
B+
Retailer 13
-
£432 GBP
$579 USD
View
B+
Retailer 14
-
£438 GBP
A$903 AUD
View
B+
Retailer 15
-
£578 GBP
$774 USD
View
B
Retailer 16
-
£606 GBP
$812 USD
View
B
Retailer 17
-
£618 GBP
$827 USD
View
B+
Retailer 18
-
£638 GBP
$855 USD
View
B
Retailer 19
-
£667 GBP
A$1,375 AUD
View
B
Retailer 20
-
£705 GBP
View
B
Retailer 21
-
£841 GBP
View
B
Retailer 22
-
£877 GBP
$1,175 USD
View
Most Expensive
Brilliant Earth
20841759A · Sep 28
£1,172 GBP
$1,570 USD
View
Price last confirmed 32 days ago
22 more retailers have this diamond
Prices start from £145 GBPSave up to £732 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
£145 GBP