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Princess|Lab Grown|IGI

1.21ct F VS1 Princess Lab Grown Diamond

ID • F/VS1 • IGI LG559281595

Shape and cutting style on the report: Princess cut

Certificate IGI LG559281595

Diamond specifications and retailer prices

From £258 GBP
As of November 4, 2026
Save £1,005 GBP (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £2,051 GBP at Do Amore Diamonds · As of November 4, 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 LG559281595 or 559281595. Listed at 13 retailers as of November 4, 2026, with a 390% 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

1.21
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.5°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG559281595
Dimensions5.77 × 5.62 × 4.05 mm
L/W Ratio1.03
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
5.77 mm5.62 mm1.21 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG559281595
Side View
Table 64.0%Crown 41.5°Girdle: Very ThickPavilion 36.9°Culet: NoneDepth 72.1%

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: £2,051 GBP|Low: £258 GBP|High: £2,051 GBP|Avg: £764 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
November 5, 2026
Retailer 8£258 GBP
Retailer 10£291 GBP
Retailer 2£375 GBP
Retailer 7£465 GBP
Retailer 11£541 GBP
Retailer 3£554 GBP
Retailer 4£582 GBP
Retailer 12£776 GBP
Retailer 6£776 GBP
Retailer 9£1,234 GBP
Retailer 5£1,262 GBP
Do Amore Diamonds£2,051 GBP

42 data points across 12 retailers

13 retailers£258 GBP to £1,262 GBP

Retailer 1
-
£231 GBP
Price last confirmed 26 days ago
A
Retailer 2
-
£258 GBP
View
Final sale: no returns
Retailer 3
-
£267 GBP
View
Price last confirmed 24 days ago
Retailer 4
-
£286 GBP
View
Price last confirmed 20 days ago
A
Retailer 5
-
£291 GBP
View
A
Retailer 6
-
£375 GBP
View
B+
Retailer 7
-
£465 GBP
View
B
Retailer 8
-
£776 GBP
View
Retailer 9
-
£1,016 GBP
View
Price last confirmed 37 days ago
B
Retailer 10
-
£1,142 GBP
View
Retailer 11
-
£1,234 GBP
View
Price last confirmed 21 days ago
B
Retailer 12
-
£1,262 GBP
View
Most Expensive
Do Amore Diamonds
27-120B79227 · Nov 4
£2,051 GBP
$2,760 USD
View
Price under review
12 more retailers have this diamond
Prices start from £258 GBPSave up to £1,005 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
£258 GBP