Princess|Lab Grown|IGI

1.29ct E IF Princess Lab Grown Diamond

ID • E/IF • IGI LG840622313

Shape and cutting style on the report: Princess cut

Certificate IGI LG840622313

Diamond specifications and retailer prices

From £210 GBP
$282 USD
As of October 30, 2026
Save £1,320 GBP (86%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,530 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.29ct lab-grown princess diamond

This 1.29ct lab-grown princess sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG840622313 or 840622313. Listed at 22 retailers as of October 29, 2026, with prices from £210 to £1,530, a £1,320 spread on the same certified stone. Brilliant Earth lists it at £1,530. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.29
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.2°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840622313
Dimensions5.96 × 5.87 × 4.19 mm
L/W Ratio1.02
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
5.96 mm5.87 mm1.29 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840622313
Side View
Table 69.0%Crown 41.2°Girdle: STK-THKPavilion 37.4°Culet: NoneDepth 71.4%

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: Oct 30
Current: £1,530 GBP|Low: £210 GBP|High: £1,530 GBP|Avg: £682 GBP
Brilliant Earth
Retailer 2
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Retailer 22
October 30, 2026
Retailer 3£210 GBP
Retailer 10£236 GBP
Retailer 21£244 GBP
Retailer 8£261 GBP
Retailer 19£261 GBP
Retailer 18£396 GBP
Retailer 13£427 GBP
Retailer 6£431 GBP
Retailer 17£448 GBP
Retailer 9£449 GBP
Retailer 2£459 GBP
Retailer 16£635 GBP
Retailer 5£665 GBP
Retailer 22£802 GBP
Retailer 12£837 GBP
Retailer 4£839 GBP
Retailer 15£876 GBP
Retailer 14£924 GBP
Retailer 20£1,051 GBP
Retailer 7£1,175 GBP
Retailer 11£1,488 GBP
Brilliant Earth£1,530 GBP

15 data points across 22 retailers

22 retailers£210 GBP to £1,530 GBP

A
Cheapest Retailer
-
£210 GBP
$282 USD
A
Retailer 2
-
£236 GBP
$316 USD
View
Final sale: no returns
A
Retailer 3
-
£244 GBP
$327 USD
View
A
Retailer 4
-
£261 GBP
$350 USD
View
A
Retailer 5
-
£261 GBP
$350 USD
View
A
Retailer 6
-
£396 GBP
$530 USD
View
A
Retailer 7
-
£427 GBP
€545 EUR
View
A
Retailer 8
-
£431 GBP
$577 USD
View
A
Retailer 9
-
£448 GBP
ZAR 9,704 ZAR
View
A
Retailer 10
-
£449 GBP
$602 USD
View
A
Retailer 11
-
£459 GBP
View
A
Retailer 12
-
£635 GBP
A$1,309 AUD
View
A
Retailer 13
-
£665 GBP
$891 USD
View
A
Retailer 14
-
£802 GBP
$1,074 USD
View
A
Retailer 15
-
£837 GBP
SGD 1,516 SGD
View
A
Retailer 16
-
£839 GBP
$1,124 USD
View
B+
Retailer 17
-
£876 GBP
$1,174 USD
View
B+
Retailer 18
-
£924 GBP
$1,238 USD
View
B+
Retailer 19
-
£1,051 GBP
View
B+
Retailer 20
-
£1,175 GBP
$1,575 USD
View
B
Retailer 21
-
£1,488 GBP
$1,994 USD
View
Most Expensive
B
Brilliant Earth
22142676A · Oct 29
£1,530 GBP
$2,050 USD
View
21 more retailers have this diamond
Prices start from £210 GBPSave up to £1,320 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
1.29ct Princess
£210 GBP