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Round|Lab Grown|IGI

1.26ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG822631603

Shape and cutting style on the report: Round brilliant

Certificate IGI LG822631603

Diamond specifications and retailer prices

From £142 GBP
$190 USD
As of October 29, 2026
Save £1,267 GBP (90%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,409 GBP at Helzberg Diamonds · As of October 30, 2026
View at Helzberg Diamonds

About this 1.26ct lab-grown round diamond

This 1.26ct lab-grown round 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 LG822631603 or 822631603. Listed at 19 retailers as of October 29, 2026, with prices from £142 to £1,409, a £1,267 spread on the same certified stone. Helzberg Diamonds lists it at £1,409. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.26
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG822631603
Dimensions6.96 × 6.99 × 4.23 mm
L/W Ratio1.00
Girdle conditionFaceted
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
6.96 mm6.99 mm1.26 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG822631603
Side View
Table 59.0%Crown 34.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £1,409 GBP|Low: £142 GBP|High: £1,409 GBP|Avg: £531 GBP
Helzberg 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
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Retailer 15
Retailer 16
October 30, 2026
Retailer 14£142 GBP
Retailer 9£159 GBP
Retailer 6£210 GBP
Retailer 2£285 GBP
Retailer 10£308 GBP
Retailer 11£319 GBP
Retailer 15£353 GBP
Retailer 4£362 GBP
Retailer 12£509 GBP
Retailer 5£514 GBP
Retailer 3£605 GBP
Retailer 16£629 GBP
Retailer 13£659 GBP
Retailer 8£680 GBP
Retailer 7£845 GBP
Helzberg Diamonds£1,409 GBP

12 data points across 16 retailers

19 retailers£142 GBP to £1,409 GBP

A
Cheapest Retailer
-
£142 GBP
$190 USD
A
Retailer 2
-
£159 GBP
$213 USD
View
Final sale: no returns
A
Retailer 3
-
£210 GBP
$282 USD
View
A
Retailer 4
-
£285 GBP
View
A
Retailer 5
-
£308 GBP
$413 USD
View
A
Retailer 6
-
£319 GBP
View
A
Retailer 7
-
£353 GBP
€451 EUR
View
A
Retailer 8
-
£362 GBP
ZAR 7,838 ZAR
View
A
Retailer 9
-
£509 GBP
$682 USD
View
A
Retailer 10
-
£514 GBP
A$1,060 AUD
View
A
Retailer 11
-
£605 GBP
$811 USD
View
B+
Retailer 12
-
£629 GBP
SGD 1,139 SGD
View
B+
Retailer 13
-
£659 GBP
$883 USD
View
B+
Retailer 14
-
£680 GBP
$911 USD
View
B+
Retailer 15
-
£845 GBP
View
B+
Retailer 16
-
£907 GBP
$1,215 USD
View
B+
Retailer 17
-
£907 GBP
$1,215 USD
View
B
Retailer 18
-
£1,224 GBP
$1,640 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOIIMJHMGJ · Oct 30
£1,409 GBP
$1,888 USD
View
18 more retailers have this diamond
Prices start from £142 GBPSave up to £1,267 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
1.26ct Round
£142 GBP