Marquise|Lab Grown|IGI

1.03ct F VS1 Marquise Lab Grown Diamond

VG • F/VS1 • IGI LG766646394

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG766646394

Diamond specifications and retailer prices

From £159 GBP
As of November 4, 2026
Save £761 GBP (83%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £1,627 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 1.03ct lab-grown marquise diamond

This 1.03ct lab-grown marquise sits in the classic one-carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG766646394 or 766646394. Listed at 24 retailers as of November 4, 2026, with a 479% 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

1.03
Carat
F
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG766646394
Dimensions10.73 × 4.99 × 3.30 mm
L/W Ratio2.15
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.73 mm4.99 mm1.03 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG766646394
Side View
Table 57.0%Crown 36.3°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 66.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £1,627 GBP|Low: £153 GBP|High: £1,627 GBP|Avg: £548 GBP
Do Amore Diamonds
Retailer 2
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Retailer 11
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Retailer 17
November 5, 2026
Retailer 3£153 GBP
Retailer 5£178 GBP
Retailer 17£198 GBP
Retailer 9£198 GBP
Retailer 6£265 GBP
Retailer 12£376 GBP
Retailer 16£394 GBP
Retailer 2£407 GBP
Retailer 4£428 GBP
Retailer 14£473 GBP
Retailer 11£533 GBP
Retailer 15£637 GBP
Retailer 13£795 GBP
Retailer 8£827 GBP
Retailer 10£869 GBP
Retailer 7£920 GBP
Do Amore Diamonds£1,627 GBP

44 data points across 17 retailers

24 retailers£159 GBP to £920 GBP

Retailer 1
-
£153 GBP
Price last confirmed 35 days ago
A
Retailer 2
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£159 GBP
View
A
Retailer 3
-
£178 GBP
View
Final sale: no returns
Retailer 4
-
£184 GBP
View
Price last confirmed 38 days ago
Retailer 5
-
£198 GBP
View
Price last confirmed 12 days ago
A
Retailer 6
-
£198 GBP
View
Retailer 7
-
£198 GBP
View
Price last confirmed 34 days ago
A
Retailer 8
-
£198 GBP
View
A
Retailer 9
-
£265 GBP
View
B+
Retailer 10
-
£376 GBP
View
Retailer 11
-
£394 GBP
View
Price last confirmed 33 days ago
B+
Retailer 12
-
£407 GBP
View
B+
Retailer 13
-
£428 GBP
View
Retailer 14
-
£473 GBP
View
Price last confirmed 9 days ago
B+
Retailer 15
-
£533 GBP
View
B
Retailer 16
-
£637 GBP
View
Retailer 17
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£700 GBP
View
Price last confirmed 37 days ago
B
Retailer 18
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£700 GBP
View
B
Retailer 19
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£795 GBP
View
B
Retailer 20
-
£827 GBP
View
B
Retailer 21
-
£869 GBP
View
B
Retailer 22
-
£920 GBP
View
Retailer 23
-
£1,531 GBP
View
Price under review
Most Expensive
Do Amore Diamonds
23-766646394 · Nov 4
£1,627 GBP
$2,190 USD
View
Price under review
23 more retailers have this diamond
Prices start from £159 GBPSave up to £761 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
1.03ct Marquise
£159 GBP