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Marquise|Lab Grown|IGI

1.02ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • IGI LG778666535

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG778666535

Diamond specifications and retailer prices

From £129 GBP
As of November 4, 2026
Save £629 GBP (83%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £758 GBP at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 1.02ct lab-grown marquise diamond

This 1.02ct lab-grown marquise sits in the classic one-carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG778666535 or 778666535. Listed at 21 retailers as of November 4, 2026, with prices from £129 to £758, a £629 spread on the same certified stone. Brilliant Earth lists it at £758. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.02
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778666535
Dimensions10.22 × 3.22 mm
L/W Ratio3.17
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.22 mm3.22 mm1.02 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778666535
Side View
Table 58.0%Crown 36°Girdle: STK-THKPavilion 38.6°Culet: NoneDepth 61.0%

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 4
Current: £758 GBP|Low: £129 GBP|High: £766 GBP|Avg: £383 GBP
Brilliant Earth
Retailer 2
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November 5, 2026
Retailer 5£129 GBP
Retailer 3£145 GBP
Retailer 16£150 GBP
Retailer 8£160 GBP
Retailer 11£161 GBP
Retailer 20£244 GBP
Retailer 17£277 GBP
Retailer 2£285 GBP
Retailer 6£285 GBP
Retailer 15£392 GBP
Retailer 12£394 GBP
Retailer 19£395 GBP
Retailer 14£411 GBP
Retailer 9£430 GBP
Retailer 10£439 GBP
Retailer 18£516 GBP
Retailer 7£536 GBP
Retailer 4£556 GBP
Retailer 13£749 GBP
Brilliant Earth£758 GBP

33 data points across 20 retailers

21 retailers£129 GBP to £758 GBP

A
Cheapest Retailer
-
£129 GBP
A
Retailer 2
-
£145 GBP
View
Final sale: no returns
A
Retailer 3
-
£150 GBP
View
A
Retailer 4
-
£160 GBP
View
Retailer 5
-
£161 GBP
View
Price last confirmed 12 days ago
A
Retailer 6
-
£244 GBP
View
A
Retailer 7
-
£277 GBP
View
A
Retailer 8
-
£285 GBP
View
A
Retailer 9
-
£285 GBP
View
B+
Retailer 10
-
£361 GBP
View
B+
Retailer 11
-
£392 GBP
View
B+
Retailer 12
-
£394 GBP
View
B+
Retailer 13
-
£395 GBP
View
B+
Retailer 14
-
£411 GBP
View
Retailer 15
-
£430 GBP
View
Price last confirmed 10 days ago
B+
Retailer 16
-
£439 GBP
View
B
Retailer 17
-
£516 GBP
View
B
Retailer 18
-
£536 GBP
View
B
Retailer 19
-
£556 GBP
View
B
Retailer 20
-
£749 GBP
View
Most Expensive
B
Brilliant Earth
21501872A · Nov 5
£758 GBP
$1,020 USD
View
20 more retailers have this diamond
Prices start from £129 GBPSave up to £629 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
1.02ct Marquise
£129 GBP