CaratHunter
Plans
Round|Lab Grown|IGI

1.25ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG836617686

Shape and cutting style on the report: Round brilliant

Certificate IGI LG836617686

Diamond specifications and retailer prices

From £232 GBP
$311 USD
As of October 30, 2026
Save £1,401 GBP (86%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,633 GBP at Helzberg Diamonds · As of October 31, 2026
View at Helzberg Diamonds

About this 1.25ct lab-grown round diamond

This 1.25ct 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 LG836617686 or 836617686. Listed at 19 retailers as of October 30, 2026, with prices from £232 to £1,633, a £1,401 spread on the same certified stone. Helzberg Diamonds lists it at £1,633. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836617686
Dimensions6.99 × 7.03 × 4.20 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.99 mm7.03 mm1.25 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836617686
Side View
Table 60.0%Crown 33.4°Girdle: MediumPavilion 41°Culet: NoneDepth 60.0%

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: £1,633 GBP|Low: £232 GBP|High: £1,633 GBP|Avg: £668 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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 30, 2026
Retailer 5£232 GBP
Retailer 16£240 GBP
Retailer 6£257 GBP
Retailer 15£373 GBP
Retailer 2£416 GBP
Retailer 7£424 GBP
Retailer 12£430 GBP
Retailer 14£441 GBP
Retailer 11£451 GBP
Retailer 18£525 GBP
Retailer 17£789 GBP
Retailer 4£825 GBP
Retailer 10£842 GBP
Retailer 8£864 GBP
Retailer 9£929 GBP
Retailer 13£1,035 GBP
Retailer 3£1,164 GBP
Helzberg Diamonds£1,633 GBP

26 data points across 18 retailers

19 retailers£232 GBP to £1,633 GBP

A
Cheapest Retailer
-
£232 GBP
$311 USD
Final sale: no returns
A
Retailer 2
-
£240 GBP
$322 USD
View
A
Retailer 3
-
£257 GBP
$344 USD
View
A
Retailer 4
-
£373 GBP
$500 USD
View
A
Retailer 5
-
£416 GBP
View
A
Retailer 6
-
£424 GBP
$568 USD
View
A
Retailer 7
-
£430 GBP
€549 EUR
View
A
Retailer 8
-
£441 GBP
ZAR 9,554 ZAR
View
A
Retailer 9
-
£451 GBP
View
A
Retailer 10
-
£525 GBP
$703 USD
View
B+
Retailer 11
-
£789 GBP
$1,057 USD
View
B+
Retailer 12
-
£825 GBP
$1,106 USD
View
B+
Retailer 13
-
£842 GBP
SGD 1,524 SGD
View
B+
Retailer 14
-
£864 GBP
$1,157 USD
View
B+
Retailer 15
-
£929 GBP
$1,245 USD
View
B+
Retailer 16
-
£1,035 GBP
View
Retailer 17
-
£1,164 GBP
$1,560 USD
View
Price last confirmed 12 days ago
B
Retailer 18
-
£1,328 GBP
$1,780 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOJMMHNMOM · Oct 31
£1,633 GBP
$2,188 USD
View
18 more retailers have this diamond
Prices start from £232 GBPSave up to £1,401 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
1.25ct Round
£232 GBP