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Marquise|Lab Grown|IGI

1.20ct E VS1 Marquise Lab Grown Diamond

ID • E/VS1 • IGI LG768622841

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG768622841

Diamond specifications and retailer prices

From £137 GBP
$183 USD
As of October 30, 2026
Save £1,177 GBP (90%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,314 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 LG768622841 or 768622841. Listed at 9 retailers as of October 30, 2026, with prices from £137 to £1,314, a £1,177 spread on the same certified stone. Do Amore Diamonds lists it at £1,314. 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 angle33.6°
Pavilion angle42.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768622841
Dimensions11.05 × 5.54 × 3.48 mm
L/W Ratio1.99
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.05 mm5.54 mm1.20 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768622841
Side View
Table 60.0%Crown 33.6°Girdle: MED-STKPavilion 42.5°Culet: NoneDepth 62.8%

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: £1,314 GBP|Low: £134 GBP|High: £1,358 GBP|Avg: £517 GBP|-2.2%
Do Amore Diamonds
Retailer 2
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Retailer 14
October 31, 2026
Retailer 11£137 GBP
Retailer 9£158 GBP
Retailer 14£285 GBP
Retailer 10£298 GBP
Retailer 3£305 GBP
Retailer 5£402 GBP
Retailer 4£425 GBP
Retailer 12£456 GBP
Retailer 7£550 GBP
Retailer 2£575 GBP
Retailer 6£582 GBP
Retailer 8£600 GBP
Retailer 13£770 GBP
Do Amore Diamonds£1,314 GBP

27 data points across 14 retailers

9 retailers£137 GBP to £1,314 GBP

A
Cheapest Retailer
-
£137 GBP
$183 USD
A
Retailer 2
-
£158 GBP
$212 USD
View
A
Retailer 3
-
£298 GBP
$399 USD
View
B+
Retailer 4
-
£456 GBP
A$941 AUD
View
B+
Retailer 5
-
£550 GBP
A$1,133 AUD
View
B
Retailer 6
-
£575 GBP
$770 USD
View
B+
Retailer 7
-
£600 GBP
$804 USD
View
B
Retailer 8
-
£770 GBP
View
Most Expensive
B
Do Amore Diamonds
27-D7EF6011F · Oct 31
£1,314 GBP
$1,760 USD
View
8 more retailers have this diamond
Prices start from £137 GBPSave up to £1,177 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
£137 GBP