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Radiant|Lab Grown|IGI

4.53ct H VS1 Radiant Lab Grown Diamond

ID • H/VS1 • IGI LG591312928

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

Certificate IGI LG591312928

Diamond specifications and retailer prices

From £1,675 GBP
$2,244 USD
As of November 1, 2026
Save £1,146 GBP (41%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £2,821 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.53ct lab-grown radiant diamond

This 4.53ct lab-grown radiant sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG591312928 or 591312928. Listed at 2 retailers as of October 31, 2026, with prices from £1,675 to £2,821, a £1,146 spread on the same certified stone. Brilliant Earth lists it at £2,821. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.53
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.7°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG591312928
Dimensions11.37 × 8.10 × 5.57 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
11.37 mm8.10 mm4.53 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG591312928
Side View
Table 66.0%Crown 46.7°Girdle: Slightly ThickPavilion 36°Culet: NoneDepth 68.8%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 1
Current: £2,821 GBP|Low: £524 GBP|High: £3,762 GBP|Avg: £1,797 GBP|-16.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
September 23, 2026
Retailer 7£530 GBP
Retailer 11£1,061 GBP
Retailer 10£1,337 GBP
Retailer 5£1,359 GBP
Retailer 9£1,584 GBP
Retailer 2£1,675 GBP
Retailer 8£1,724 GBP
Retailer 3£1,843 GBP
Retailer 4£1,971 GBP
Retailer 6£2,421 GBP
Brilliant Earth£2,821 GBP

47 data points across 11 retailers

2 retailers£1,675 GBP to £2,821 GBP

B+
Cheapest Retailer
-
£1,675 GBP
$2,244 USD
Most Expensive
B
Brilliant Earth
16070755A · Oct 31
£2,821 GBP
$3,780 USD
View
1 more retailer has this diamond
Prices start from £1,675 GBPSave up to £1,146 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+
4.53ct Radiant
£1,675 GBP