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Marquise|Lab Grown|IGI

1.20ct E VS1 Marquise Lab Grown Diamond

ID • E/VS1 • IGI LG843683938

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843683938

Diamond specifications and retailer prices

From £131 GBP
$176 USD
As of October 30, 2026
Save £703 GBP (84%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £835 GBP at Reve Diamonds · As of November 1, 2026
View at Reve 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 LG843683938 or 843683938. Listed at 20 retailers as of October 30, 2026, with prices from £131 to £835, a £703 spread on the same certified stone. Reve Diamonds lists it at £835. 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 angle33.1°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843683938
Dimensions11.71 × 5.41 × 3.33 mm
L/W Ratio2.16
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.71 mm5.41 mm1.20 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843683938
Side View
Table 61.0%Crown 33.1°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 61.6%

Caratlytics Score

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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: £282 GBP|Low: £131 GBP|High: £851 GBP|Avg: £374 GBP|-2.5%
Retailer 1
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Retailer 12
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Retailer 19
Reve Diamonds
November 1, 2026
Retailer 11£131 GBP
Retailer 9£147 GBP
Retailer 7£153 GBP
Retailer 5£163 GBP
Retailer 19£163 GBP
Retailer 13£204 GBP
Retailer 2£225 GBP
Retailer 1£282 GBP
Retailer 4£290 GBP
Retailer 14£293 GBP
Retailer 8£316 GBP
Retailer 6£348 GBP
Retailer 17£398 GBP
Retailer 16£466 GBP
Retailer 15£515 GBP
Retailer 3£525 GBP
Retailer 18£555 GBP
Retailer 10£565 GBP
Retailer 12£763 GBP
Reve Diamonds£835 GBP

20 data points across 20 retailers

20 retailers£131 GBP to £835 GBP

A
Cheapest Retailer
-
£131 GBP
$176 USD
A
Retailer 2
-
£147 GBP
$197 USD
View
Final sale: no returns
A
Retailer 3
-
£153 GBP
$205 USD
View
Retailer 4
-
£163 GBP
$219 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
£163 GBP
$219 USD
View
A
Retailer 6
-
£204 GBP
View
B+
Retailer 7
-
£225 GBP
$302 USD
View
A
Retailer 8
-
£282 GBP
ZAR 6,100 ZAR
View
A
Retailer 9
-
£290 GBP
€370 EUR
View
A
Retailer 10
-
£293 GBP
View
A
Retailer 11
-
£316 GBP
$424 USD
View
A
Retailer 12
-
£348 GBP
$466 USD
View
A
Retailer 13
-
£398 GBP
A$821 AUD
View
B+
Retailer 14
-
£466 GBP
$625 USD
View
B+
Retailer 15
-
£515 GBP
$690 USD
View
B+
Retailer 16
-
£525 GBP
$703 USD
View
B+
Retailer 17
-
£555 GBP
$743 USD
View
B+
Retailer 18
-
£565 GBP
$758 USD
View
B
Retailer 19
-
£763 GBP
View
Most Expensive
B
Reve Diamonds
CDF180EC8 · Nov 1
£835 GBP
$1,118 USD
View
19 more retailers have this diamond
Prices start from £131 GBPSave up to £703 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
£131 GBP