Radiant|Lab Grown|IGI

1.25ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG836664425

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

Certificate IGI LG836664425

Diamond specifications and retailer prices

From £165 GBP
$221 USD
As of October 30, 2026
Save £746 GBP (82%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £911 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 LG836664425 or 836664425. Listed at 14 retailers as of October 30, 2026, with prices from £165 to £911, a £746 spread on the same certified stone. Brilliant Earth lists it at £911. 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 angle42.3°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836664425
Dimensions7.90 × 5.24 × 3.52 mm
L/W Ratio1.51
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.90 mm5.24 mm1.25 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836664425
Side View
Table 65.0%Crown 42.3°Girdle: MediumPavilion 34.4°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: £911 GBP|Low: £165 GBP|High: £918 GBP|Avg: £498 GBP|-0.8%
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
October 31, 2026
Retailer 4£165 GBP
Retailer 12£246 GBP
Retailer 8£314 GBP
Retailer 6£318 GBP
Retailer 2£332 GBP
Retailer 11£334 GBP
Retailer 3£366 GBP
Retailer 9£448 GBP
Retailer 13£537 GBP
Retailer 10£590 GBP
Retailer 5£629 GBP
Retailer 7£861 GBP
Retailer 14£886 GBP
Brilliant Earth£911 GBP

22 data points across 14 retailers

14 retailers£165 GBP to £911 GBP

A
Cheapest Retailer
-
£165 GBP
$221 USD
Final sale: no returns
Retailer 2
-
£246 GBP
View
Price last confirmed 14 days ago
A
Retailer 3
-
£314 GBP
ZAR 6,806 ZAR
View
A
Retailer 4
-
£318 GBP
$426 USD
View
A
Retailer 5
-
£332 GBP
View
Retailer 6
-
£334 GBP
€426 EUR
View
Price last confirmed 7 days ago
B+
Retailer 7
-
£366 GBP
$491 USD
View
B+
Retailer 8
-
£448 GBP
A$923 AUD
View
Retailer 9
-
£537 GBP
$720 USD
View
Price last confirmed 12 days ago
B
Retailer 10
-
£590 GBP
$791 USD
View
B
Retailer 11
-
£629 GBP
$842 USD
View
B
Retailer 12
-
£861 GBP
View
B
Retailer 13
-
£886 GBP
$1,187 USD
View
Most Expensive
B
Brilliant Earth
21756732A · Oct 30
£911 GBP
$1,220 USD
View
13 more retailers have this diamond
Prices start from £165 GBPSave up to £746 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
£165 GBP