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Princess|Lab Grown|IGI

1.21ct F VS1 Princess Lab Grown Diamond

EX • F/VS1 • IGI LG787609406

Shape and cutting style on the report: Princess cut

Certificate IGI LG787609406

Diamond specifications and retailer prices

From £140 GBP
As of November 4, 2026
Save £1,212 GBP (90%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,352 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 1.21ct lab-grown princess diamond

This 1.21ct lab-grown princess 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 LG787609406 or 787609406. Listed at 15 retailers as of November 2, 2026, with prices from £140 to £1,352, a £1,212 spread on the same certified stone. Do Amore Diamonds lists it at £1,352. 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 angle43.5°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG787609406
Dimensions5.72 × 5.62 × 4.18 mm
L/W Ratio1.02
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.72 mm5.62 mm1.21 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787609406
Side View
Table 71.0%Crown 43.5°Girdle: Slightly ThickPavilion 39°Culet: NoneDepth 74.4%

Caratlytics Score

How it works →
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: £1,352 GBP|Low: £135 GBP|High: £1,352 GBP|Avg: £475 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
November 3, 2026
Retailer 16£140 GBP
Retailer 4£163 GBP
Retailer 3£204 GBP
Retailer 9£230 GBP
Retailer 6£236 GBP
Retailer 5£259 GBP
Retailer 12£313 GBP
Retailer 7£392 GBP
Retailer 13£470 GBP
Retailer 14£557 GBP
Retailer 15£562 GBP
Retailer 8£619 GBP
Retailer 2£638 GBP
Retailer 11£758 GBP
Retailer 10£770 GBP
Do Amore Diamonds£1,352 GBP

42 data points across 16 retailers

15 retailers£140 GBP to £1,352 GBP

A
Cheapest Retailer
-
£140 GBP
A
Retailer 2
-
£163 GBP
View
A
Retailer 3
-
£230 GBP
View
B+
Retailer 4
-
£236 GBP
View
Retailer 5
-
£259 GBP
View
Price last confirmed 14 days ago
Retailer 6
-
£313 GBP
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£392 GBP
View
Retailer 8
-
£470 GBP
View
Price last confirmed 10 days ago
Retailer 9
-
£557 GBP
View
Price last confirmed 12 days ago
B+
Retailer 10
-
£562 GBP
View
B
Retailer 11
-
£619 GBP
View
B
Retailer 12
-
£638 GBP
View
B
Retailer 13
-
£758 GBP
View
B
Retailer 14
-
£770 GBP
View
Most Expensive
B
Do Amore Diamonds
27-813885AAA · Nov 2
£1,352 GBP
$1,820 USD
View
14 more retailers have this diamond
Prices start from £140 GBPSave up to £1,212 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 Princess
£140 GBP