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Round|Lab Grown|IGI

1.45ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG836617709

Shape and cutting style on the report: Round brilliant

Certificate IGI LG836617709

Diamond specifications and retailer prices

From £253 GBP
$339 USD
As of October 30, 2026
Save £1,608 GBP (86%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,861 GBP at Helzberg Diamonds · As of October 29, 2026
View at Helzberg Diamonds

About this 1.45ct lab-grown round diamond

This 1.45ct 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 LG836617709 or 836617709. Listed at 19 retailers as of October 29, 2026, with prices from £253 to £1,861, a £1,608 spread on the same certified stone. Helzberg Diamonds lists it at £1,861. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.45
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836617709
Dimensions7.24 × 7.29 × 4.49 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
7.24 mm7.29 mm1.45 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836617709
Side View
Table 55.0%Crown 34.6°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.8%

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 30
Current: £1,861 GBP|Low: £253 GBP|High: £1,861 GBP|Avg: £732 GBP
Helzberg Diamonds
Retailer 2
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Retailer 19
October 30, 2026
Retailer 9£253 GBP
Retailer 5£262 GBP
Retailer 6£280 GBP
Retailer 4£440 GBP
Retailer 12£453 GBP
Retailer 15£456 GBP
Retailer 7£458 GBP
Retailer 16£481 GBP
Retailer 13£496 GBP
Retailer 8£684 GBP
Retailer 18£749 GBP
Retailer 3£860 GBP
Retailer 19£894 GBP
Retailer 11£899 GBP
Retailer 10£935 GBP
Retailer 14£1,128 GBP
Retailer 2£1,493 GBP
Retailer 17£1,504 GBP
Helzberg Diamonds£1,861 GBP

26 data points across 19 retailers

19 retailers£253 GBP to £1,861 GBP

A
Cheapest Retailer
-
£253 GBP
$339 USD
Final sale: no returns
A
Retailer 2
-
£262 GBP
$351 USD
View
A
Retailer 3
-
£280 GBP
$375 USD
View
A
Retailer 4
-
£440 GBP
$590 USD
View
A
Retailer 5
-
£453 GBP
View
A
Retailer 6
-
£456 GBP
€582 EUR
View
A
Retailer 7
-
£458 GBP
$613 USD
View
A
Retailer 8
-
£481 GBP
ZAR 10,409 ZAR
View
A
Retailer 9
-
£496 GBP
View
A
Retailer 10
-
£684 GBP
$917 USD
View
B+
Retailer 11
-
£749 GBP
$1,004 USD
View
B+
Retailer 12
-
£860 GBP
$1,152 USD
View
B+
Retailer 13
-
£894 GBP
SGD 1,619 SGD
View
B+
Retailer 14
-
£899 GBP
$1,205 USD
View
B+
Retailer 15
-
£935 GBP
$1,253 USD
View
B+
Retailer 16
-
£1,128 GBP
View
B+
Retailer 17
-
£1,493 GBP
$2,000 USD
View
B
Retailer 18
-
£1,504 GBP
$2,015 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOJMMHNNGP · Oct 29
£1,861 GBP
$2,494 USD
View
18 more retailers have this diamond
Prices start from £253 GBPSave up to £1,608 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
1.45ct Round
£253 GBP