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Marquise|Lab Grown|IGI

1.20ct E VS1 Marquise Lab Grown Diamond

ID • E/VS1 • IGI LG844644775

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG844644775

Diamond specifications and retailer prices

From £185 GBP
$248 USD
As of November 1, 2026
Save £1,352 GBP (88%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,537 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.2ct lab-grown marquise diamond

This 1.2ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG844644775 or 844644775. Listed at 11 retailers as of October 31, 2026, with prices from £185 to £1,537, a £1,352 spread on the same certified stone. Do Amore Diamonds lists it at £1,537. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844644775
Dimensions11.27 × 5.55 × 3.40 mm
L/W Ratio2.03
Girdle conditionFaceted
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.27 mm5.55 mm1.20 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844644775
Side View
Table 60.0%Crown 34.4°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
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 1
Current: £1,537 GBP|Low: £274 GBP|High: £1,537 GBP|Avg: £671 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 3£274 GBP
Retailer 7£340 GBP
Retailer 4£508 GBP
Retailer 5£534 GBP
Retailer 6£640 GBP
Retailer 8£668 GBP
Retailer 2£877 GBP
Do Amore Diamonds£1,537 GBP

8 data points across 8 retailers

11 retailers£185 GBP to £1,537 GBP

A
Cheapest Retailer
-
£185 GBP
$248 USD
A
Retailer 2
-
£274 GBP
View
A
Retailer 3
-
£340 GBP
$455 USD
View
B+
Retailer 4
-
£403 GBP
$540 USD
View
B+
Retailer 5
-
£508 GBP
$680 USD
View
B+
Retailer 6
-
£534 GBP
A$1,100 AUD
View
B
Retailer 7
-
£640 GBP
$857 USD
View
B
Retailer 8
-
£668 GBP
$895 USD
View
B
Retailer 9
-
£703 GBP
$942 USD
View
B
Retailer 10
-
£877 GBP
View
Most Expensive
B
Do Amore Diamonds
27-0914F88B9 · Oct 31
£1,537 GBP
$2,060 USD
View
10 more retailers have this diamond
Prices start from £185 GBPSave up to £1,352 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
1.20ct Marquise
£185 GBP