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Marquise|Lab Grown|IGI

1.30ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • IGI LG805699594

Certificate IGI LG805699594

Diamond specifications and retailer prices

From £554 GBP
As of November 3, 2026
Save £216 GBP (28%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £949 GBP at Jared · As of October 28, 2026
View at Jared

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), with a top-tier cut grade and certified by IGI LG805699594 or 805699594. Listed at 4 retailers as of November 3, 2026, with a 39% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.30
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG805699594
Dimensions11.05 × 5.74 × 3.54 mm
L/W Ratio1.93
Top View
11.05 mm5.74 mm1.30 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG805699594
Side View
Table 60.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: £949 GBP|Low: £554 GBP|High: £1,524 GBP|Avg: £832 GBP|-37.7%
Jared
Retailer 2
Retailer 3
Retailer 4
September 28, 2026
Retailer 3£554 GBP
Retailer 2£770 GBP
Retailer 4£770 GBP
Jared£949 GBP

2 data points across 4 retailers

4 retailers£554 GBP to £770 GBP

B+
Cheapest Retailer
-
£554 GBP
B
Retailer 2
-
£770 GBP
View
B
Retailer 3
-
£770 GBP
View
Most Expensive
Jared
159736049 · Oct 28
£949 GBP
$1,270 USD
View
Price last confirmed 9 days ago
3 more retailers have this diamond
Prices start from £554 GBPSave up to £216 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.

B+
1.30ct Marquise
£554 GBP