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Marquise|Lab Grown|IGI

1.31ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • IGI LG817690044

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG817690044

Diamond specifications and retailer prices

From £168 GBP
$226 USD
As of November 2, 2026
Save £782 GBP (82%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £951 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 LG817690044 or 817690044. Listed at 21 retailers as of November 1, 2026, with prices from £168 to £951, a £782 spread on the same certified stone. Reve Diamonds lists it at £951. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817690044
Dimensions12.77 × 5.35 × 3.28 mm
L/W Ratio2.39
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.77 mm5.35 mm1.31 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817690044
Side View
Table 60.0%Crown 33.3°Girdle: STK-THKPavilion 39.2°Culet: NoneDepth 61.3%

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: £250 GBP|Low: £162 GBP|High: £951 GBP|Avg: £440 GBP|-1.3%
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
Retailer 16
Retailer 17
Reve Diamonds
November 2, 2026
Retailer 6£168 GBP
Retailer 5£188 GBP
Retailer 9£195 GBP
Retailer 4£209 GBP
Retailer 7£209 GBP
Retailer 1£250 GBP
Retailer 14£282 GBP
Retailer 16£348 GBP
Retailer 11£360 GBP
Retailer 10£386 GBP
Retailer 13£420 GBP
Retailer 15£509 GBP
Retailer 17£559 GBP
Retailer 2£570 GBP
Retailer 8£671 GBP
Retailer 3£673 GBP
Retailer 12£837 GBP
Reve Diamonds£951 GBP

37 data points across 18 retailers

21 retailers£168 GBP to £951 GBP

A
Cheapest Retailer
-
£168 GBP
$226 USD
A
Retailer 2
-
£188 GBP
$252 USD
View
Final sale: no returns
A
Retailer 3
-
£195 GBP
$262 USD
View
A
Retailer 4
-
£209 GBP
$280 USD
View
Retailer 5
-
£209 GBP
$280 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
£250 GBP
View
B+
Retailer 7
-
£282 GBP
$378 USD
View
A
Retailer 8
-
£348 GBP
€445 EUR
View
A
Retailer 9
-
£360 GBP
ZAR 7,810 ZAR
View
A
Retailer 10
-
£381 GBP
$511 USD
View
A
Retailer 11
-
£386 GBP
View
B+
Retailer 12
-
£420 GBP
A$868 AUD
View
B+
Retailer 13
-
£447 GBP
$600 USD
View
B+
Retailer 14
-
£509 GBP
A$1,051 AUD
View
B+
Retailer 15
-
£559 GBP
A$1,155 AUD
View
B+
Retailer 16
-
£570 GBP
$765 USD
View
B
Retailer 17
-
£671 GBP
$900 USD
View
B
Retailer 18
-
£673 GBP
$903 USD
View
B
Retailer 19
-
£710 GBP
$953 USD
View
B
Retailer 20
-
£837 GBP
View
Most Expensive
B
Reve Diamonds
A8865663F · Nov 1
£951 GBP
$1,276 USD
View
20 more retailers have this diamond
Prices start from £168 GBPSave up to £782 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
£168 GBP