Radiant|Lab Grown|IGI

5.55ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG819622433

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

Certificate IGI LG819622433

Diamond specifications and retailer prices

From £821 GBP
$1,100 USD
As of October 27, 2026
Save £2,509 GBP (75%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £3,330 GBP at Taylor and Hart · As of October 27, 2026
View at Taylor and Hart

About this 5.55ct lab-grown radiant diamond

This 5.55ct lab-grown radiant sits in the over five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG819622433 or 819622433. Listed at 19 retailers as of October 27, 2026, with prices from £821 to £3,330, a £2,509 spread on the same certified stone. Taylor and Hart lists it at £3,330. 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

5.55
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle49.1°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG819622433
Dimensions13.07 × 8.48 × 5.46 mm
L/W Ratio1.54
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.07 mm8.48 mm5.55 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG819622433
Side View
Table 65.0%Crown 49.1°Girdle: Slightly ThickPavilion 35.3°Culet: NoneDepth 64.4%

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: Oct 27
Current: £1,037 GBP|Low: £818 GBP|High: £3,330 GBP|Avg: £1,677 GBP|-4.4%
Retailer 1
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Retailer 18
Taylor and Hart
October 28, 2026
Retailer 8£821 GBP
Retailer 16£893 GBP
Retailer 4£919 GBP
Retailer 2£952 GBP
Retailer 5£952 GBP
Retailer 1£1,037 GBP
Retailer 15£1,064 GBP
Retailer 3£1,275 GBP
Retailer 11£1,374 GBP
Retailer 10£1,516 GBP
Retailer 9£1,785 GBP
Retailer 13£1,917 GBP
Retailer 14£1,929 GBP
Retailer 17£1,932 GBP
Retailer 18£2,287 GBP
Retailer 6£2,627 GBP
Retailer 7£2,758 GBP
Retailer 12£3,064 GBP
Taylor and Hart£3,330 GBP

34 data points across 19 retailers

19 retailers£821 GBP to £3,330 GBP

A
Cheapest Retailer
-
£821 GBP
$1,100 USD
A
Retailer 2
-
£893 GBP
$1,197 USD
View
A
Retailer 3
-
£919 GBP
$1,232 USD
View
Final sale: no returns
A
Retailer 4
-
£952 GBP
$1,276 USD
View
Retailer 5
-
£952 GBP
$1,276 USD
View
Price last confirmed 13 days ago
A
Retailer 6
-
£1,037 GBP
View
A
Retailer 7
-
£1,064 GBP
$1,425 USD
View
A
Retailer 8
-
£1,275 GBP
$1,708 USD
View
A
Retailer 9
-
£1,374 GBP
View
A
Retailer 10
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£1,516 GBP
$2,031 USD
View
B+
Retailer 11
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£1,785 GBP
$2,392 USD
View
B+
Retailer 12
-
£1,917 GBP
ZAR 41,500 ZAR
View
Retailer 13
-
£1,929 GBP
A$3,976 AUD
View
Price last confirmed 9 days ago
B+
Retailer 14
-
£1,932 GBP
$2,589 USD
View
B+
Retailer 15
-
£2,287 GBP
$3,064 USD
View
B+
Retailer 16
-
£2,627 GBP
View
B+
Retailer 17
-
£2,758 GBP
$3,695 USD
View
B
Retailer 18
-
£3,064 GBP
View
Most Expensive
B
Taylor and Hart
2YH3R3J · Oct 27
£3,330 GBP
$4,462 USD
View
18 more retailers have this diamond
Prices start from £821 GBPSave up to £2,509 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
5.55ct Radiant
£821 GBP