CaratHunter
Plans
Radiant|Lab Grown|IGI

1.15ct I VS1 Radiant Lab Grown Diamond

ID • I/VS1 • IGI LG506197270

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

Certificate IGI LG506197270

Diamond specifications and retailer prices

From £515 GBP
As of November 2, 2026
Save £809 GBP (61%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £2,241 GBP at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 1.15ct lab-grown radiant diamond

This 1.15ct lab-grown radiant sits in the classic one-carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG506197270 or 506197270. Listed at 13 retailers as of November 2, 2026, with a 157% 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

1.15
Carat
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle30.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG506197270
Dimensions7.39 × 5.10 × 3.38 mm
L/W Ratio1.45
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
7.39 mm5.10 mm1.15 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG506197270
Side View
Table 65.5%Crown 36.2°Girdle: MediumPavilion 30.1°Culet: NoneDepth 66.3%

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: £2,241 GBP|Low: £515 GBP|High: £3,459 GBP|Avg: £1,860 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
Retailer 13
Retailer 14
Retailer 15
November 3, 2026
Retailer 9£515 GBP
Retailer 10£1,031 GBP
Retailer 13£1,121 GBP
Retailer 14£1,154 GBP
Retailer 11£1,195 GBP
Retailer 4£1,324 GBP
Retailer 7£1,362 GBP
Retailer 5£1,623 GBP
Retailer 12£1,887 GBP
Retailer 3£2,169 GBP
Retailer 2£2,199 GBP
NZ Jewellers£2,241 GBP
Retailer 15£2,886 GBP
Retailer 8£3,414 GBP
Retailer 6£3,422 GBP

23 data points across 15 retailers

13 retailers£515 GBP to £1,324 GBP

B+
Cheapest Retailer
-
£515 GBP
B
Retailer 2
-
£1,031 GBP
View
B
Retailer 3
-
£1,121 GBP
View
B
Retailer 4
-
£1,154 GBP
View
Final sale: no returns
Retailer 5
-
£1,195 GBP
View
Price last confirmed 23 days ago
B
Retailer 6
-
£1,195 GBP
View
B
Retailer 7
-
£1,324 GBP
View
Retailer 8
-
£1,887 GBP
View
Price under review
Retailer 9
-
£2,169 GBP
View
Price under review
Retailer 10
-
£2,199 GBP
View
Price under review
Most Expensive
NZ Jewellers
2b07247a-5973-4ff6-b9a2-22299fb71004 · Nov 4
£2,241 GBP
$3,005 USD
View
Price under review
10 more retailers have this diamond
Prices start from £515 GBPSave up to £809 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+
1.15ct Radiant
£515 GBP