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Radiant|Lab Grown|IGI

1.35ct I VS1 Radiant Lab Grown Diamond

ID • I/VS1 • IGI LG512227952

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

Certificate IGI LG512227952

Diamond specifications and retailer prices

From £552 GBP
As of November 2, 2026
Save £1,084 GBP (66%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,001 GBP at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 1.35ct lab-grown radiant diamond

This 1.35ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG512227952 or 512227952. Listed at 12 retailers as of November 2, 2026, with a 196% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.35
Carat
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.9°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512227952
Dimensions7.85 × 5.60 × 3.73 mm
L/W Ratio1.40
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.85 mm5.60 mm1.35 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512227952
Side View
Table 67.0%Crown 38.9°Girdle: STK-THKPavilion 35.4°Culet: NoneDepth 66.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £2,001 GBP|Low: £552 GBP|High: £2,702 GBP|Avg: £1,267 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 6£552 GBP
Retailer 8£614 GBP
Retailer 11£667 GBP
Retailer 9£711 GBP
Retailer 3£843 GBP
Retailer 4£1,101 GBP
Retailer 10£1,146 GBP
Retailer 2£1,307 GBP
Retailer 7£1,636 GBP
Retailer 12£1,966 GBP
NZ Jewellers£2,001 GBP
Retailer 5£2,667 GBP

22 data points across 12 retailers

12 retailers£552 GBP to £1,636 GBP

B+
Cheapest Retailer
-
£552 GBP
B+
Retailer 2
-
£614 GBP
View
B+
Retailer 3
-
£667 GBP
View
B
Retailer 4
-
£711 GBP
View
Retailer 5
-
£711 GBP
View
Price last confirmed 18 days ago
B
Retailer 6
-
£843 GBP
View
B
Retailer 7
-
£1,146 GBP
View
B
Retailer 8
-
£1,307 GBP
View
B
Retailer 9
-
£1,636 GBP
View
Retailer 10
-
£1,966 GBP
View
Price under review
Most Expensive
NZ Jewellers
ce9dd9ed-d43a-4a9b-912a-746081bcdc76 · Nov 4
£2,001 GBP
$2,683 USD
View
Price under review
10 more retailers have this diamond
Prices start from £552 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.

B+
1.35ct Radiant
£552 GBP