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Round|Lab Grown|IGI

1.29ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG836620572

Shape and cutting style on the report: Round brilliant

Certificate IGI LG836620572

Diamond specifications and retailer prices

From £203 GBP
$272 USD
As of October 29, 2026
Save £1,170 GBP (85%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,373 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.29ct lab-grown round diamond

This 1.29ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836620572 or 836620572. Listed at 19 retailers as of October 29, 2026, with prices from £203 to £1,373, a £1,170 spread on the same certified stone. Brilliant Earth lists it at £1,373. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836620572
Dimensions6.96 × 6.92 × 4.31 mm
L/W Ratio1.01
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 mm6.92 mm1.29 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836620572
Side View
Table 57.0%Crown 35.8°Girdle: MediumPavilion 40.7°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
A+
Exceptional
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: £1,373 GBP|Low: £200 GBP|High: £1,373 GBP|Avg: £603 GBP
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 12
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Retailer 19
October 30, 2026
Retailer 7£203 GBP
Retailer 8£228 GBP
Retailer 3£236 GBP
Retailer 4£252 GBP
Retailer 10£252 GBP
Retailer 15£369 GBP
Retailer 13£414 GBP
Retailer 5£417 GBP
Retailer 14£433 GBP
Retailer 2£442 GBP
Retailer 6£552 GBP
Retailer 19£774 GBP
Retailer 18£807 GBP
Retailer 11£810 GBP
Retailer 9£847 GBP
Retailer 17£888 GBP
Retailer 12£1,015 GBP
Retailer 16£1,198 GBP
Brilliant Earth£1,373 GBP

36 data points across 19 retailers

19 retailers£203 GBP to £1,373 GBP

A+
Cheapest Retailer
-
£203 GBP
$272 USD
A
Retailer 2
-
£228 GBP
$305 USD
View
Final sale: no returns
A
Retailer 3
-
£236 GBP
$316 USD
View
A
Retailer 4
-
£252 GBP
$337 USD
View
A
Retailer 5
-
£252 GBP
$337 USD
View
A
Retailer 6
-
£369 GBP
$495 USD
View
A
Retailer 7
-
£414 GBP
€528 EUR
View
A
Retailer 8
-
£417 GBP
$559 USD
View
A
Retailer 9
-
£433 GBP
ZAR 9,366 ZAR
View
A
Retailer 10
-
£442 GBP
View
A
Retailer 11
-
£552 GBP
$740 USD
View
B+
Retailer 12
-
£774 GBP
$1,037 USD
View
B+
Retailer 13
-
£807 GBP
SGD 1,461 SGD
View
B+
Retailer 14
-
£810 GBP
$1,085 USD
View
B+
Retailer 15
-
£847 GBP
$1,135 USD
View
B+
Retailer 16
-
£888 GBP
$1,190 USD
View
B+
Retailer 17
-
£1,015 GBP
View
Retailer 18
-
£1,198 GBP
$1,605 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
21433580A · Oct 29
£1,373 GBP
$1,840 USD
View
18 more retailers have this diamond
Prices start from £203 GBPSave up to £1,170 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 Round
£203 GBP