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Radiant|Lab Grown|IGI

1.00ct H VS1 Radiant Lab Grown Diamond

ID • H/VS1 • IGI LG512224128

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

Certificate IGI LG512224128

Diamond specifications and retailer prices

From £538 GBP
$722 USD
As of November 2, 2026
Save £610 GBP (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,955 GBP at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 1ct lab-grown radiant diamond

This 1ct lab-grown radiant sits in the classic one-carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG512224128 or 512224128. Listed at 15 retailers as of October 29, 2026, with a 113% 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

1.00
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.5°
Pavilion angle33.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512224128
Dimensions6.67 × 4.98 × 3.49 mm
L/W Ratio1.34
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
6.67 mm4.98 mm1.00 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512224128
Side View
Table 68.0%Crown 41.5°Girdle: THK-VTKPavilion 33.6°Culet: NoneDepth 70.1%

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: £2,452 GBP|Low: £516 GBP|High: £2,484 GBP|Avg: £1,242 GBP|-1.1%
Retailer 1
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
Reve Diamonds
November 1, 2026
Retailer 11£538 GBP
Retailer 12£566 GBP
Retailer 2£586 GBP
Retailer 3£602 GBP
Retailer 13£624 GBP
Retailer 5£756 GBP
Retailer 6£981 GBP
Retailer 15£1,013 GBP
Retailer 9£1,148 GBP
Retailer 10£1,538 GBP
Retailer 8£1,627 GBP
Retailer 14£1,756 GBP
Retailer 7£1,788 GBP
Retailer 4£1,942 GBP
Reve Diamonds£1,955 GBP
Retailer 1£2,452 GBP

23 data points across 16 retailers

15 retailers£538 GBP to £1,148 GBP

B+
Cheapest Retailer
-
£538 GBP
$722 USD
B
Retailer 2
-
£566 GBP
$760 USD
View
B
Retailer 3
-
£586 GBP
$786 USD
View
B
Retailer 4
-
£602 GBP
$808 USD
View
Final sale: no returns
B
Retailer 5
-
£624 GBP
$838 USD
View
Retailer 6
-
£624 GBP
$838 USD
View
Price last confirmed 16 days ago
B
Retailer 7
-
£756 GBP
$1,015 USD
View
B
Retailer 8
-
£1,013 GBP
$1,359 USD
View
B
Retailer 9
-
£1,148 GBP
ZAR 24,881 ZAR
View
Retailer 10
-
£1,538 GBP
$2,064 USD
View
Price under review
Retailer 11
-
£1,627 GBP
A$3,359 AUD
View
Price under review
Retailer 12
-
£1,756 GBP
$2,356 USD
View
Price under review
Retailer 13
-
£1,942 GBP
View
Price under review
Most Expensive
Reve Diamonds
70B682A69 · Nov 1
£1,955 GBP
$2,623 USD
View
Price under review
13 more retailers have this diamond
Prices start from £538 GBPSave up to £610 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+
1.00ct Radiant
£538 GBP