CaratHunter
Plans
Marquise|Lab Grown|IGI

1.31ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG667430983

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG667430983

Diamond specifications and retailer prices

From £199 GBP
$267 USD
As of November 2, 2026
Save £893 GBP (82%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £1,766 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore 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 LG667430983 or 667430983. Listed at 25 retailers as of November 1, 2026, with a 449% 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

1.31
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG667430983
Dimensions11.70 × 5.69 × 3.50 mm
L/W Ratio2.06
Girdle conditionFaceted
Culet sizePointed
Top View
11.70 mm5.69 mm1.31 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG667430983
Side View
Table 62.0%Crown 36°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £1,930 GBP|Low: £192 GBP|High: £1,930 GBP|Avg: £631 GBP
Do Amore Diamonds
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
Retailer 18
Retailer 19
November 2, 2026
Retailer 5£192 GBP
Retailer 7£222 GBP
Retailer 4£247 GBP
Retailer 11£303 GBP
Retailer 19£306 GBP
Retailer 8£330 GBP
Retailer 6£334 GBP
Retailer 12£470 GBP
Retailer 2£479 GBP
Retailer 15£493 GBP
Retailer 3£548 GBP
Retailer 17£602 GBP
Retailer 16£665 GBP
Retailer 18£759 GBP
Retailer 10£999 GBP
Retailer 14£1,036 GBP
Retailer 9£1,047 GBP
Retailer 13£1,092 GBP
Do Amore Diamonds£1,930 GBP

43 data points across 19 retailers

25 retailers£199 GBP to £1,092 GBP

Retailer 1
-
£192 GBP
$257 USD
Price last confirmed 31 days ago
A
Retailer 2
-
£199 GBP
$267 USD
View
A
Retailer 3
-
£222 GBP
$298 USD
View
Final sale: no returns
Retailer 4
-
£231 GBP
$310 USD
View
Price last confirmed 34 days ago
Retailer 5
-
£247 GBP
$331 USD
View
Price last confirmed 8 days ago
Retailer 6
-
£247 GBP
$331 USD
View
Price last confirmed 30 days ago
A
Retailer 7
-
£247 GBP
$331 USD
View
A
Retailer 8
-
£303 GBP
$406 USD
View
A
Retailer 9
-
£306 GBP
$410 USD
View
A
Retailer 10
-
£330 GBP
$443 USD
View
A
Retailer 11
-
£334 GBP
$448 USD
View
B+
Retailer 12
-
£470 GBP
ZAR 10,191 ZAR
View
B+
Retailer 13
-
£479 GBP
View
B+
Retailer 14
-
£493 GBP
A$1,018 AUD
View
B+
Retailer 15
-
£548 GBP
$735 USD
View
Retailer 16
-
£602 GBP
A$1,243 AUD
View
Price last confirmed 8 days ago
B+
Retailer 17
-
£665 GBP
A$1,373 AUD
View
B
Retailer 18
-
£759 GBP
$1,018 USD
View
Retailer 19
-
£876 GBP
$1,176 USD
View
Price last confirmed 33 days ago
B
Retailer 20
-
£876 GBP
$1,176 USD
View
B
Retailer 21
-
£999 GBP
$1,341 USD
View
B
Retailer 22
-
£1,036 GBP
$1,390 USD
View
B
Retailer 23
-
£1,047 GBP
$1,406 USD
View
B
Retailer 24
-
£1,092 GBP
View
Most Expensive
Do Amore Diamonds
27-FE57E0A4D · Nov 2
£1,766 GBP
$2,370 USD
View
Price under review
24 more retailers have this diamond
Prices start from £199 GBPSave up to £893 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
£199 GBP