Oval|Lab Grown|IGI

1.25ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG811641231

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG811641231

Diamond specifications and retailer prices

From £190 GBP
$255 USD
As of November 3, 2026
Save £1,189 GBP (86%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,379 GBP at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

About this 1.25ct lab-grown oval diamond

This 1.25ct lab-grown oval sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG811641231 or 811641231. Listed at 21 retailers as of November 3, 2026, with prices from £190 to £1,379, a £1,189 spread on the same certified stone. Brilliant Earth lists it at £1,379. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811641231
Dimensions8.81 × 6.07 × 3.80 mm
L/W Ratio1.45
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
8.81 mm6.07 mm1.25 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811641231
Side View
Table 58.0%Crown 33.9°Girdle: THN-THKPavilion 40.3°Culet: NoneDepth 62.6%

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: Nov 3
Current: £1,379 GBP|Low: £169 GBP|High: £1,648 GBP|Avg: £607 GBP|-16.3%
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
Retailer 14
Retailer 15
Retailer 16
November 3, 2026
Retailer 7£175 GBP
Retailer 3£190 GBP
Retailer 8£218 GBP
Retailer 14£298 GBP
Retailer 12£352 GBP
Retailer 10£364 GBP
Retailer 2£394 GBP
Retailer 4£458 GBP
Retailer 9£516 GBP
Retailer 13£547 GBP
Retailer 16£601 GBP
Retailer 5£717 GBP
Retailer 11£845 GBP
Retailer 15£957 GBP
Retailer 6£1,201 GBP
Brilliant Earth£1,379 GBP

35 data points across 16 retailers

21 retailers£190 GBP to £1,379 GBP

Retailer 1
-
£175 GBP
$235 USD
Price last confirmed 23 days ago
Retailer 2
-
£180 GBP
$242 USD
View
Price last confirmed 41 days ago
A
Retailer 3
-
£190 GBP
$255 USD
View
Final sale: no returns
Retailer 4
-
£210 GBP
$281 USD
View
Price last confirmed 39 days ago
Retailer 5
-
£218 GBP
$292 USD
View
Price last confirmed 22 days ago
Retailer 6
-
£218 GBP
$292 USD
View
Price last confirmed 31 days ago
Retailer 7
-
£221 GBP
$296 USD
View
Price last confirmed 39 days ago
A
Retailer 8
-
£298 GBP
$400 USD
View
A
Retailer 9
-
£352 GBP
€450 EUR
View
A
Retailer 10
-
£364 GBP
ZAR 7,889 ZAR
View
A
Retailer 11
-
£394 GBP
View
A
Retailer 12
-
£458 GBP
$614 USD
View
A
Retailer 13
-
£516 GBP
A$1,064 AUD
View
B+
Retailer 14
-
£547 GBP
$734 USD
View
B+
Retailer 15
-
£601 GBP
$806 USD
View
Retailer 16
-
£699 GBP
$937 USD
View
Price last confirmed 26 days ago
B+
Retailer 17
-
£717 GBP
$962 USD
View
B+
Retailer 18
-
£845 GBP
View
B
Retailer 19
-
£957 GBP
$1,283 USD
View
Retailer 20
-
£1,201 GBP
$1,610 USD
View
Price last confirmed 13 days ago
Most Expensive
B
Brilliant Earth
21016039A · Nov 3
£1,379 GBP
$1,850 USD
View
20 more retailers have this diamond
Prices start from £190 GBPSave up to £1,189 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 Oval
£190 GBP