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Radiant|Lab Grown|IGI

1.25ct G VVS1 Radiant Lab Grown Diamond

ID • G/VVS1 • IGI LG640443025

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

Certificate IGI LG640443025

Diamond specifications and retailer prices

From £333 GBP
As of November 4, 2026
Save £1,180 GBP (78%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,513 GBP at MOH London · As of November 5, 2026
View at MOH London

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 G colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG640443025 or 640443025. Listed at 18 retailers as of November 4, 2026, with prices from £333 to £1,513, a £1,180 spread on the same certified stone. MOH London lists it at £1,513. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
G
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48.5°
Pavilion angle36.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG640443025
Dimensions7.45 × 5.18 × 3.76 mm
L/W Ratio1.44
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.45 mm5.18 mm1.25 ctG / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG640443025
Side View
Table 69.0%Crown 48.5°Girdle: MED-STKPavilion 36.6°Culet: NoneDepth 72.6%

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 4
Current: £1,513 GBP|Low: £319 GBP|High: £1,534 GBP|Avg: £781 GBP|+73.3%
MOH London
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
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Retailer 16
Retailer 17
November 6, 2026
Retailer 16£333 GBP
Retailer 5£373 GBP
Retailer 6£373 GBP
Retailer 17£412 GBP
Retailer 7£505 GBP
Retailer 13£520 GBP
Retailer 8£582 GBP
Retailer 4£647 GBP
Retailer 2£675 GBP
Retailer 12£706 GBP
Retailer 11£712 GBP
Retailer 10£1,008 GBP
Retailer 14£1,109 GBP
Retailer 15£1,200 GBP
Retailer 3£1,327 GBP
Retailer 9£1,351 GBP
MOH London£1,513 GBP

46 data points across 17 retailers

18 retailers£333 GBP to £1,513 GBP

A
Cheapest Retailer
-
£333 GBP
A
Retailer 2
-
£373 GBP
View
Final sale: no returns
A
Retailer 3
-
£373 GBP
View
Retailer 4
-
£412 GBP
View
Price last confirmed 21 days ago
B+
Retailer 5
-
£412 GBP
View
B+
Retailer 6
-
£505 GBP
View
B+
Retailer 7
-
£520 GBP
View
B+
Retailer 8
-
£582 GBP
View
B
Retailer 9
-
£647 GBP
View
B
Retailer 10
-
£675 GBP
View
B
Retailer 11
-
£706 GBP
View
B
Retailer 12
-
£712 GBP
View
B
Retailer 13
-
£1,008 GBP
View
B
Retailer 14
-
£1,109 GBP
View
B
Retailer 15
-
£1,200 GBP
View
B
Retailer 16
-
£1,327 GBP
View
B
Retailer 17
-
£1,351 GBP
View
Most Expensive
B
MOH London
LG640443025 · Nov 5
£1,513 GBP
View
17 more retailers have this diamond
Prices start from £333 GBPSave up to £1,180 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
£333 GBP