Princess|Lab Grown|IGI

1.22ct E SI1 Princess Lab Grown Diamond

ID • E/SI1 • IGI LG598362431

Shape and cutting style on the report: Princess cut

Certificate IGI LG598362431

Diamond specifications and retailer prices

From £125 GBP
$167 USD
As of October 30, 2026
Save £1,077 GBP (90%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,202 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.22ct lab-grown princess diamond

This 1.22ct lab-grown princess sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG598362431 or 598362431. Listed at 9 retailers as of October 29, 2026, with prices from £125 to £1,202, a £1,077 spread on the same certified stone. Do Amore Diamonds lists it at £1,202. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.22
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.6°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG598362431
Dimensions5.80 × 5.73 × 4.18 mm
L/W Ratio1.01
Culet sizeNone
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
5.80 mm5.73 mm1.22 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG598362431
Side View
Table 72.0%Crown 43.6°Girdle: MediumPavilion 38.5°Culet: NoneDepth 72.9%

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: £1,202 GBP|Low: £125 GBP|High: £1,202 GBP|Avg: £661 GBP|+2.5%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 5£125 GBP
Retailer 6£278 GBP
Retailer 4£525 GBP
Retailer 2£560 GBP
Retailer 7£560 GBP
Retailer 3£803 GBP
Do Amore Diamonds£1,202 GBP

17 data points across 7 retailers

9 retailers£125 GBP to £1,202 GBP

A
Cheapest Retailer
-
£125 GBP
$167 USD
A
Retailer 2
-
£145 GBP
$194 USD
View
B+
Retailer 3
-
£278 GBP
$373 USD
View
B
Retailer 4
-
£525 GBP
$704 USD
View
B
Retailer 5
-
£549 GBP
$736 USD
View
B
Retailer 6
-
£560 GBP
$750 USD
View
B
Retailer 7
-
£560 GBP
$751 USD
View
B
Retailer 8
-
£803 GBP
View
Most Expensive
B
Do Amore Diamonds
27-3A8D504DB · Oct 29
£1,202 GBP
$1,610 USD
View
8 more retailers have this diamond
Prices start from £125 GBPSave up to £1,077 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
1.22ct Princess
£125 GBP