Radiant|Lab Grown|IGI

1.25ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG742502268

Shape and cutting style on the report: Cut cornered square modified brilliant

Certificate IGI LG742502268

Diamond specifications and retailer prices

From £166 GBP
$223 USD
As of October 30, 2026
Save £752 GBP (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £918 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.25ct lab-grown radiant diamond

This 1.25ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG742502268 or 742502268. Listed at 11 retailers as of October 30, 2026, with prices from £166 to £918, a £752 spread on the same certified stone. Brilliant Earth lists it at £918. 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
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.4°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG742502268
Dimensions6.07 × 6.01 × 4.04 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.07 mm6.01 mm1.25 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG742502268
Side View
Table 65.0%Crown 42.4°Girdle: MED-STKPavilion 37.2°Culet: NoneDepth 67.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £918 GBP|Low: £166 GBP|High: £1,022 GBP|Avg: £521 GBP|-10.2%
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 12£166 GBP
Retailer 9£185 GBP
Retailer 8£248 GBP
Retailer 2£317 GBP
Retailer 13£322 GBP
Retailer 7£337 GBP
Retailer 5£373 GBP
Retailer 10£425 GBP
Retailer 11£634 GBP
Retailer 4£682 GBP
Retailer 6£865 GBP
Retailer 3£890 GBP
Brilliant Earth£918 GBP

26 data points across 13 retailers

11 retailers£166 GBP to £918 GBP

A
Cheapest Retailer
-
£166 GBP
$223 USD
Final sale: no returns
A
Retailer 2
-
£185 GBP
$248 USD
View
Retailer 3
-
£248 GBP
View
Price last confirmed 13 days ago
A
Retailer 4
-
£317 GBP
ZAR 6,871 ZAR
View
A
Retailer 5
-
£322 GBP
$431 USD
View
Retailer 6
-
£337 GBP
€430 EUR
View
Price last confirmed 7 days ago
B+
Retailer 7
-
£425 GBP
$569 USD
View
B
Retailer 8
-
£634 GBP
$850 USD
View
B
Retailer 9
-
£865 GBP
View
B
Retailer 10
-
£890 GBP
$1,193 USD
View
Most Expensive
B
Brilliant Earth
16389990A · Oct 30
£918 GBP
$1,230 USD
View
10 more retailers have this diamond
Prices start from £166 GBPSave up to £752 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 Radiant
£166 GBP