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Marquise|Lab Grown|IGI

1.51ct F VVS1 Marquise Lab Grown Diamond

ID • F/VVS1 • IGI LG818621608

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818621608

Diamond specifications and retailer prices

From £306 GBP
As of November 6, 2026
Save £1,390 GBP (82%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,696 GBP at Brilliant Earth · As of November 3, 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), with a top-tier cut grade and certified by IGI LG818621608 or 818621608. Listed at 19 retailers as of November 3, 2026, with prices from £306 to £1,696, a £1,390 spread on the same certified stone. Brilliant Earth lists it at £1,696. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
F
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818621608
Dimensions11.79 × 5.94 × 3.69 mm
L/W Ratio1.98
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.79 mm5.94 mm1.51 ctF / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818621608
Side View
Table 59.0%Crown 33.9°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.1%

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: £1,696 GBP|Low: £368 GBP|High: £1,696 GBP|Avg: £779 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 9£392 GBP
Retailer 2£439 GBP
Retailer 6£448 GBP
Retailer 11£471 GBP
Retailer 7£480 GBP
Retailer 10£641 GBP
Retailer 12£840 GBP
Retailer 13£877 GBP
Retailer 3£900 GBP
Retailer 4£1,000 GBP
Retailer 5£1,081 GBP
Retailer 8£1,094 GBP
Brilliant Earth£1,696 GBP

45 data points across 13 retailers

19 retailers£306 GBP to £1,696 GBP

Retailer 1
-
£223 GBP
Price last confirmed 30 days ago
Retailer 2
-
£259 GBP
View
Price last confirmed 23 days ago
Retailer 3
-
£277 GBP
View
Price last confirmed 26 days ago
Retailer 4
-
£277 GBP
View
Price last confirmed 35 days ago
A
Retailer 5
-
£306 GBP
View
A
Retailer 6
-
£392 GBP
View
A
Retailer 7
-
£439 GBP
View
A
Retailer 8
-
£448 GBP
View
A
Retailer 9
-
£471 GBP
View
A
Retailer 10
-
£480 GBP
View
B+
Retailer 11
-
£641 GBP
View
B
Retailer 12
-
£840 GBP
View
B+
Retailer 13
-
£877 GBP
View
Retailer 14
-
£891 GBP
View
Price last confirmed 34 days ago
B+
Retailer 15
-
£900 GBP
View
B+
Retailer 16
-
£1,000 GBP
View
Retailer 17
-
£1,081 GBP
View
Price last confirmed 22 days ago
B
Retailer 18
-
£1,094 GBP
View
Most Expensive
B
Brilliant Earth
20853895A · Nov 3
£1,696 GBP
$2,270 USD
View
18 more retailers have this diamond
Prices start from £306 GBPSave up to £1,390 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
£306 GBP