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Marquise|Lab Grown|IGI

1.51ct F VVS1 Marquise Lab Grown Diamond

VG • F/VVS1 • IGI LG778633012

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG778633012

Diamond specifications and retailer prices

From £224 GBP
As of November 6, 2026
Save £956 GBP (81%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: £1,180 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 very-good cut grade and certified by IGI LG778633012 or 778633012. Listed at 27 retailers as of November 3, 2026, with prices from £224 to £1,180, a £956 spread on the same certified stone. Brilliant Earth lists it at £1,180. 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
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778633012
Dimensions12.20 × 6.03 × 3.64 mm
L/W Ratio2.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.20 mm6.03 mm1.51 ctF / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778633012
Side View
Table 61.0%Crown 33.9°Girdle: MED-STKPavilion 40°Culet: NoneDepth 60.4%

Caratlytics Score

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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: £1,180 GBP|Low: £222 GBP|High: £1,188 GBP|Avg: £631 GBP|-0.6%
Brilliant Earth
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November 6, 2026
Retailer 6£224 GBP
Retailer 22£250 GBP
Retailer 14£260 GBP
Retailer 9£278 GBP
Retailer 12£278 GBP
Retailer 3£396 GBP
Retailer 10£454 GBP
Retailer 8£471 GBP
Retailer 4£477 GBP
Retailer 20£478 GBP
Retailer 13£488 GBP
Retailer 2£511 GBP
Retailer 23£513 GBP
Retailer 19£651 GBP
Retailer 18£853 GBP
Retailer 7£893 GBP
Retailer 5£900 GBP
Retailer 15£928 GBP
Retailer 16£972 GBP
Retailer 21£1,068 GBP
Retailer 17£1,109 GBP
Retailer 11£1,129 GBP
Brilliant Earth£1,180 GBP

35 data points across 23 retailers

27 retailers£224 GBP to £1,180 GBP

A
Cheapest Retailer
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£224 GBP
A
Retailer 2
-
£250 GBP
View
Final sale: no returns
A
Retailer 3
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£260 GBP
View
Retailer 4
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£278 GBP
View
Price last confirmed 13 days ago
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Retailer 5
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£278 GBP
View
A
Retailer 6
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£396 GBP
View
A
Retailer 7
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£454 GBP
View
A
Retailer 8
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£471 GBP
View
B+
Retailer 9
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£477 GBP
View
A
Retailer 10
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£478 GBP
View
A
Retailer 11
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£488 GBP
View
B+
Retailer 12
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£511 GBP
View
B+
Retailer 13
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£513 GBP
View
B+
Retailer 14
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£651 GBP
View
B+
Retailer 15
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£725 GBP
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B
Retailer 16
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£853 GBP
View
B
Retailer 17
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£893 GBP
View
B
Retailer 18
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£900 GBP
View
B
Retailer 19
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£917 GBP
View
B
Retailer 20
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£928 GBP
View
Retailer 21
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£972 GBP
View
Price last confirmed 30 days ago
B
Retailer 22
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£1,024 GBP
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B
Retailer 23
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£1,068 GBP
View
B
Retailer 24
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£1,109 GBP
View
B
Retailer 25
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£1,129 GBP
View
B
Retailer 26
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£1,180 GBP
View
Most Expensive
B
Brilliant Earth
20095766A · Nov 3
£1,180 GBP
$1,580 USD
View
26 more retailers have this diamond
Prices start from £224 GBPSave up to £956 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
£224 GBP