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Marquise|Lab Grown|IGI

1.30ct F VS1 Marquise Lab Grown Diamond

F/VS1 • IGI LG791607547

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG791607547

Diamond specifications and retailer prices

From £358 GBP
As of November 1, 2026
Save £300 GBP (46%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £691 GBP at OORE Jewelry · As of September 9, 2026
View at OORE Jewelry

About this 1.3ct lab-grown marquise diamond

This 1.3ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included) and certified by IGI LG791607547 or 791607547. Listed at 5 retailers as of November 1, 2026, with a 84% 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

1.30
Carat
F
Colour
VS1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG791607547
Dimensions11.67 × 5.55 × 3.52 mm
L/W Ratio2.10
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.67 mm5.55 mm1.30 ctF / VS1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG791607547
Side View
Table 63.0%Crown 36.5°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 63.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £691 GBP|Low: £169 GBP|High: £755 GBP|Avg: £426 GBP
OORE Jewelry
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 4£170 GBP
Retailer 6£213 GBP
Retailer 10£293 GBP
Retailer 5£299 GBP
Retailer 7£356 GBP
Retailer 2£358 GBP
Retailer 8£369 GBP
Retailer 9£614 GBP
Retailer 3£657 GBP
OORE Jewelry£691 GBP

34 data points across 10 retailers

5 retailers£358 GBP to £657 GBP

A
Cheapest Retailer
-
£358 GBP
Retailer 2
-
£378 GBP
View
Price last confirmed 128 days ago
Retailer 3
-
£521 GBP
View
Price last confirmed 45 days ago
B
Retailer 4
-
£657 GBP
View
Most Expensive
OORE Jewelry
36EE190A4 · Sep 9
£691 GBP
$925 USD
View
Price last confirmed 58 days ago
4 more retailers have this diamond
Prices start from £358 GBPSave up to £300 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
1.30ct Marquise
£358 GBP