Marquise|Lab Grown|IGI

1.20ct E VS1 Marquise Lab Grown Diamond

VG • E/VS1 • IGI LG839611392

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG839611392

Diamond specifications and retailer prices

From £182 GBP
HK$1,900 HKD
As of November 1, 2026
Save £560 GBP (76%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £822 GBP at Reve Diamonds · As of October 25, 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 very-good cut grade and certified by IGI LG839611392 or 839611392. Listed at 19 retailers as of October 26, 2026, with a 308% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
E
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle32.8°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839611392
Dimensions11.65 × 5.62 × 3.09 mm
L/W Ratio2.07
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.65 mm5.62 mm1.20 ctE / VS1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG839611392
Side View
Table 65.0%Crown 32.8°Girdle: MED-THKPavilion 37.2°Culet: NoneDepth 55.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £396 GBP|Low: £122 GBP|High: £822 GBP|Avg: £367 GBP|-18.6%
Retailer 1
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Retailer 3
Retailer 4
Retailer 5
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Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
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Retailer 17
Retailer 18
Retailer 19
Reve Diamonds
October 31, 2026
Retailer 2£128 GBP
Retailer 5£142 GBP
Retailer 19£149 GBP
Retailer 3£158 GBP
Retailer 6£182 GBP
Retailer 17£199 GBP
Retailer 12£264 GBP
Retailer 15£268 GBP
Retailer 13£281 GBP
Retailer 18£283 GBP
Retailer 10£315 GBP
Retailer 9£344 GBP
Retailer 1£396 GBP
Retailer 16£463 GBP
Retailer 4£509 GBP
Retailer 8£521 GBP
Retailer 7£522 GBP
Retailer 11£550 GBP
Retailer 14£741 GBP
Reve Diamonds£822 GBP

26 data points across 20 retailers

19 retailers£182 GBP to £741 GBP

Retailer 1
-
£128 GBP
$171 USD
Price last confirmed 9 days ago
Retailer 2
-
£149 GBP
$199 USD
View
Price last confirmed 8 days ago
Retailer 3
-
£158 GBP
$212 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
£182 GBP
HK$1,900 HKD
View
Retailer 5
-
£199 GBP
View
Price last confirmed 15 days ago
A
Retailer 6
-
£264 GBP
€337 EUR
View
Retailer 7
-
£268 GBP
ZAR 5,796 ZAR
View
Price last confirmed 9 days ago
A
Retailer 8
-
£281 GBP
View
Retailer 9
-
£283 GBP
$379 USD
View
Price last confirmed 7 days ago
B+
Retailer 10
-
£315 GBP
$422 USD
View
B+
Retailer 11
-
£344 GBP
$461 USD
View
B+
Retailer 12
-
£396 GBP
$531 USD
View
B+
Retailer 13
-
£463 GBP
$620 USD
View
Retailer 14
-
£509 GBP
$682 USD
View
Price last confirmed 7 days ago
B
Retailer 15
-
£521 GBP
SGD 943 SGD
View
B
Retailer 16
-
£522 GBP
$700 USD
View
B
Retailer 17
-
£550 GBP
$737 USD
View
B
Retailer 18
-
£741 GBP
View
Most Expensive
Reve Diamonds
8A4AB0110 · Oct 25
£822 GBP
$1,102 USD
View
Price last confirmed 7 days ago
18 more retailers have this diamond
Prices start from £182 GBPSave up to £560 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
£182 GBP