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Marquise|Lab Grown|IGI

1.21ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • IGI LG794683397

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG794683397

Diamond specifications and retailer prices

From £164 GBP
As of November 4, 2026
Save £1,233 GBP (88%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,397 GBP at Do Amore Diamonds · As of November 5, 2026
View at Do Amore Diamonds

About this 1.21ct lab-grown marquise diamond

This 1.21ct lab-grown marquise sits in the classic one-carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG794683397 or 794683397. Listed at 10 retailers as of November 4, 2026, with prices from £164 to £1,397, a £1,233 spread on the same certified stone. Do Amore Diamonds lists it at £1,397. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794683397
Dimensions10.65 × 5.55 × 3.57 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.65 mm5.55 mm1.21 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG794683397
Side View
Table 61.0%Crown 36.3°Girdle: MED-STKPavilion 41°Culet: NoneDepth 64.3%

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 4
Current: £1,397 GBP|Low: £276 GBP|High: £1,569 GBP|Avg: £550 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
November 5, 2026
Retailer 10£276 GBP
Retailer 12£285 GBP
Retailer 11£318 GBP
Retailer 4£346 GBP
Retailer 9£347 GBP
Retailer 5£356 GBP
Retailer 8£497 GBP
Retailer 2£548 GBP
Retailer 13£587 GBP
Retailer 7£654 GBP
Retailer 3£702 GBP
Retailer 6£897 GBP
Do Amore Diamonds£1,397 GBP

18 data points across 13 retailers

10 retailers£164 GBP to £1,397 GBP

A
Cheapest Retailer
-
£164 GBP
A
Retailer 2
-
£276 GBP
View
A
Retailer 3
-
£347 GBP
View
Retailer 4
-
£356 GBP
View
Price last confirmed 128 days ago
B+
Retailer 5
-
£497 GBP
View
B+
Retailer 6
-
£548 GBP
View
B
Retailer 7
-
£654 GBP
View
B
Retailer 8
-
£720 GBP
View
B
Retailer 9
-
£897 GBP
View
Most Expensive
B
Do Amore Diamonds
7-1798254 · Nov 5
£1,397 GBP
$1,870 USD
View
9 more retailers have this diamond
Prices start from £164 GBPSave up to £1,233 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
1.21ct Marquise
£164 GBP