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Marquise|Lab Grown|IGI

1.51ct F VVS1 Marquise Lab Grown Diamond

F/VVS1 • IGI LG780664457

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780664457

Diamond specifications and retailer prices

From £233 GBP
As of November 6, 2026
Save £970 GBP (81%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,203 GBP at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 1.51ct lab-grown marquise diamond

This 1.51ct lab-grown marquise sits in the one-and-a-half to two carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included) and certified by IGI LG780664457 or 780664457. Listed at 22 retailers as of November 6, 2026, with prices from £233 to £1,203, a £970 spread on the same certified stone. Brilliant Earth lists it at £1,203. 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

1.51
Carat
F
Colour
VVS1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780664457
Dimensions11.46 × 6.02 × 3.70 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.46 mm6.02 mm1.51 ctF / VVS1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780664457
Side View
Table 64.0%Crown 34°Girdle: MED-THKPavilion 40.1°Culet: NoneDepth 61.5%

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 6
Current: £1,203 GBP|Low: £233 GBP|High: £1,210 GBP|Avg: £651 GBP|-0.6%
Brilliant Earth
Retailer 2
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Retailer 22
November 6, 2026
Retailer 6£233 GBP
Retailer 5£261 GBP
Retailer 18£270 GBP
Retailer 11£289 GBP
Retailer 14£290 GBP
Retailer 22£403 GBP
Retailer 4£469 GBP
Retailer 15£481 GBP
Retailer 17£498 GBP
Retailer 2£509 GBP
Retailer 3£538 GBP
Retailer 13£678 GBP
Retailer 16£725 GBP
Retailer 12£900 GBP
Retailer 9£922 GBP
Retailer 8£925 GBP
Retailer 20£929 GBP
Retailer 7£962 GBP
Retailer 10£963 GBP
Retailer 21£1,110 GBP
Retailer 19£1,157 GBP
Brilliant Earth£1,203 GBP

28 data points across 22 retailers

22 retailers£233 GBP to £1,203 GBP

A
Cheapest Retailer
-
£233 GBP
A
Retailer 2
-
£261 GBP
View
Final sale: no returns
A
Retailer 3
-
£270 GBP
View
A
Retailer 4
-
£289 GBP
View
Retailer 5
-
£290 GBP
View
Price last confirmed 13 days ago
A
Retailer 6
-
£403 GBP
View
A
Retailer 7
-
£469 GBP
View
B+
Retailer 8
-
£481 GBP
View
B+
Retailer 9
-
£498 GBP
View
B+
Retailer 10
-
£509 GBP
View
B+
Retailer 11
-
£538 GBP
View
B+
Retailer 12
-
£678 GBP
View
B
Retailer 13
-
£725 GBP
View
B
Retailer 14
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£900 GBP
View
B
Retailer 15
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£922 GBP
View
B
Retailer 16
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£925 GBP
View
B
Retailer 17
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£929 GBP
View
Retailer 18
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£962 GBP
View
Price last confirmed 8 days ago
B
Retailer 19
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£963 GBP
View
B
Retailer 20
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£1,110 GBP
View
B
Retailer 21
-
£1,157 GBP
View
Most Expensive
B
Brilliant Earth
21501131A · Nov 6
£1,203 GBP
$1,610 USD
View
21 more retailers have this diamond
Prices start from £233 GBPSave up to £970 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
1.51ct Marquise
£233 GBP