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Princess|Lab Grown|IGI

1.21ct E VVS1 Princess Lab Grown Diamond

ID • E/VVS1 • IGI LG720561151

Shape and cutting style on the report: Princess cut

Certificate IGI LG720561151

Diamond specifications and retailer prices

From £147 GBP
$197 USD
As of October 30, 2026
Save £1,445 GBP (91%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,592 GBP at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.21ct lab-grown princess diamond

This 1.21ct lab-grown princess sits in the classic one-carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG720561151 or 720561151. Listed at 20 retailers as of October 27, 2026, with prices from £147 to £1,592, a £1,445 spread on the same certified stone. Queensmith lists it at £1,592. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
E
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle47.8°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720561151
Dimensions5.78 × 5.76 × 4.24 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
5.78 mm5.76 mm1.21 ctE / VVS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720561151
Side View
Table 74.0%Crown 47.8°Girdle: MediumPavilion 39°Culet: NoneDepth 73.6%

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: Oct 30
Current: £223 GBP|Low: £141 GBP|High: £866 GBP|Avg: £398 GBP|-0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 12£147 GBP
Retailer 5£170 GBP
Retailer 2£182 GBP
Retailer 4£182 GBP
Retailer 1£223 GBP
Retailer 7£299 GBP
Retailer 9£312 GBP
Retailer 6£332 GBP
Retailer 11£466 GBP
Retailer 3£584 GBP
Retailer 8£716 GBP
Retailer 10£851 GBP
Retailer 13£866 GBP

38 data points across 13 retailers

20 retailers£147 GBP to £1,592 GBP

A
Cheapest Retailer
-
£147 GBP
$197 USD
A
Retailer 2
-
£164 GBP
$220 USD
View
Final sale: no returns
A
Retailer 3
-
£170 GBP
$228 USD
View
A
Retailer 4
-
£182 GBP
$244 USD
View
A
Retailer 5
-
£182 GBP
$244 USD
View
A
Retailer 6
-
£223 GBP
View
B+
Retailer 7
-
£246 GBP
$330 USD
View
A
Retailer 8
-
£299 GBP
€381 EUR
View
A
Retailer 9
-
£312 GBP
ZAR 6,761 ZAR
View
A
Retailer 10
-
£332 GBP
View
B+
Retailer 11
-
£413 GBP
$554 USD
View
B+
Retailer 12
-
£421 GBP
$564 USD
View
B+
Retailer 13
-
£466 GBP
$624 USD
View
B+
Retailer 14
-
£584 GBP
$783 USD
View
B+
Retailer 15
-
£625 GBP
$837 USD
View
B+
Retailer 16
-
£716 GBP
$960 USD
View
B
Retailer 17
-
£851 GBP
View
B
Retailer 18
-
£866 GBP
$1,160 USD
View
B
Retailer 19
-
£883 GBP
$1,183 USD
View
Most Expensive
B
Queensmith
LG720561151 · Oct 27
£1,592 GBP
View
19 more retailers have this diamond
Prices start from £147 GBPSave up to £1,445 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
£147 GBP