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Marquise|Lab Grown|IGI

1.31ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG828671781

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG828671781

Diamond specifications and retailer prices

From £162 GBP
$218 USD
As of November 2, 2026
Save £771 GBP (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £933 GBP at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 1.31ct lab-grown marquise diamond

This 1.31ct 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 LG828671781 or 828671781. Listed at 18 retailers as of November 1, 2026, with prices from £162 to £933, a £771 spread on the same certified stone. Reve Diamonds lists it at £933. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.31
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.6°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828671781
Dimensions10.73 × 5.90 × 3.60 mm
L/W Ratio1.82
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.73 mm5.90 mm1.31 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828671781
Side View
Table 55.0%Crown 30.6°Girdle: STK-THKPavilion 39.2°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 2
Current: £372 GBP|Low: £156 GBP|High: £819 GBP|Avg: £397 GBP|+3.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 2, 2026
Retailer 2£162 GBP
Retailer 7£182 GBP
Retailer 5£189 GBP
Retailer 3£202 GBP
Retailer 6£202 GBP
Retailer 11£272 GBP
Retailer 14£338 GBP
Retailer 8£348 GBP
Retailer 1£372 GBP
Retailer 13£493 GBP
Retailer 12£554 GBP
Retailer 9£566 GBP
Retailer 4£649 GBP
Retailer 15£651 GBP
Retailer 10£809 GBP

44 data points across 15 retailers

18 retailers£162 GBP to £933 GBP

A
Cheapest Retailer
-
£162 GBP
$218 USD
A
Retailer 2
-
£182 GBP
$244 USD
View
Final sale: no returns
A
Retailer 3
-
£189 GBP
$253 USD
View
Retailer 4
-
£202 GBP
$271 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
£202 GBP
$271 USD
View
B+
Retailer 6
-
£272 GBP
$365 USD
View
A
Retailer 7
-
£338 GBP
€432 EUR
View
A
Retailer 8
-
£348 GBP
ZAR 7,555 ZAR
View
A
Retailer 9
-
£372 GBP
View
A
Retailer 10
-
£379 GBP
$509 USD
View
B+
Retailer 11
-
£493 GBP
A$1,018 AUD
View
B+
Retailer 12
-
£554 GBP
A$1,144 AUD
View
B+
Retailer 13
-
£566 GBP
$760 USD
View
B
Retailer 14
-
£649 GBP
$871 USD
View
B
Retailer 15
-
£651 GBP
$874 USD
View
B
Retailer 16
-
£688 GBP
$924 USD
View
B
Retailer 17
-
£809 GBP
View
Most Expensive
B
Reve Diamonds
94255A0C7 · Nov 1
£933 GBP
$1,252 USD
View
17 more retailers have this diamond
Prices start from £162 GBPSave up to £771 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
1.31ct Marquise
£162 GBP