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Round|Lab Grown|IGI

1.25ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG811647516

Shape and cutting style on the report: Round brilliant

Certificate IGI LG811647516

Diamond specifications and retailer prices

From £245 GBP
$328 USD
As of October 30, 2026
Save £1,084 GBP (82%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,328 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 LG811647516 or 811647516. Listed at 18 retailers as of October 29, 2026, with prices from £245 to £1,328, a £1,084 spread on the same certified stone. Brilliant Earth lists it at £1,328. 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 angle34.2°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811647516
Dimensions6.96 × 6.93 × 4.24 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 mm6.93 mm1.25 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811647516
Side View
Table 58.0%Crown 34.2°Girdle: MediumPavilion 41°Culet: NoneDepth 61.2%

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: £1,328 GBP|Low: £174 GBP|High: £1,373 GBP|Avg: £677 GBP|-3.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 13£245 GBP
Retailer 11£364 GBP
Retailer 8£366 GBP
Retailer 7£466 GBP
Retailer 6£476 GBP
Retailer 2£477 GBP
Retailer 3£529 GBP
Retailer 10£695 GBP
Retailer 12£868 GBP
Retailer 5£907 GBP
Retailer 9£1,087 GBP
Retailer 4£1,112 GBP
Brilliant Earth£1,328 GBP

42 data points across 13 retailers

18 retailers£245 GBP to £1,328 GBP

Retailer 1
-
£219 GBP
$293 USD
Price last confirmed 20 days ago
A
Retailer 2
-
£245 GBP
$328 USD
View
Final sale: no returns
Retailer 3
-
£254 GBP
$340 USD
View
Price last confirmed 17 days ago
Retailer 4
-
£271 GBP
$363 USD
View
Price last confirmed 28 days ago
Retailer 5
-
£271 GBP
$363 USD
View
Price last confirmed 18 days ago
A
Retailer 6
-
£364 GBP
$488 USD
View
A
Retailer 7
-
£366 GBP
$490 USD
View
A
Retailer 8
-
£466 GBP
ZAR 10,077 ZAR
View
A
Retailer 9
-
£476 GBP
€607 EUR
View
A
Retailer 10
-
£477 GBP
View
A
Retailer 11
-
£529 GBP
$709 USD
View
B+
Retailer 12
-
£695 GBP
$931 USD
View
B+
Retailer 13
-
£868 GBP
SGD 1,572 SGD
View
Retailer 14
-
£871 GBP
$1,167 USD
View
Price last confirmed 30 days ago
B+
Retailer 15
-
£907 GBP
$1,215 USD
View
B+
Retailer 16
-
£1,087 GBP
View
B
Retailer 17
-
£1,112 GBP
$1,490 USD
View
Most Expensive
B
Brilliant Earth
21505063A · Oct 29
£1,328 GBP
$1,780 USD
View
17 more retailers have this diamond
Prices start from £245 GBPSave up to £1,084 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
£245 GBP