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Marquise|Lab Grown|IGI

1.31ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG842615264

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG842615264

Diamond specifications and retailer prices

From £166 GBP
As of November 4, 2026
Save £565 GBP (77%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,593 GBP at Do Amore Diamonds · As of November 4, 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 G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG842615264 or 842615264. Listed at 11 retailers as of November 4, 2026, with a 341% 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
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG842615264
Dimensions11.84 × 5.79 × 3.40 mm
L/W Ratio2.04
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.84 mm5.79 mm1.31 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG842615264
Side View
Table 57.0%Crown 33.9°Girdle: MED-STKPavilion 38.4°Culet: NoneDepth 58.7%

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 4
Current: £1,593 GBP|Low: £166 GBP|High: £1,593 GBP|Avg: £477 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 10£166 GBP
Retailer 8£186 GBP
Retailer 5£193 GBP
Retailer 6£206 GBP
Retailer 9£206 GBP
Retailer 4£393 GBP
Retailer 2£427 GBP
Retailer 7£443 GBP
Retailer 3£685 GBP
Retailer 11£731 GBP
Do Amore Diamonds£1,593 GBP

21 data points across 11 retailers

11 retailers£166 GBP to £731 GBP

A
Cheapest Retailer
-
£166 GBP
A
Retailer 2
-
£186 GBP
View
Final sale: no returns
A
Retailer 3
-
£193 GBP
View
A
Retailer 4
-
£206 GBP
View
Retailer 5
-
£206 GBP
View
Price last confirmed 11 days ago
A
Retailer 6
-
£393 GBP
View
B+
Retailer 7
-
£427 GBP
View
B+
Retailer 8
-
£443 GBP
View
B
Retailer 9
-
£685 GBP
View
B
Retailer 10
-
£731 GBP
View
Most Expensive
Do Amore Diamonds
27-ECEA38109 · Nov 4
£1,593 GBP
$2,150 USD
View
Price under review
10 more retailers have this diamond
Prices start from £166 GBPSave up to £565 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
£166 GBP