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Radiant|Lab Grown|IGI

1.55ct G VS2 Radiant Lab Grown Diamond

ID • G/VS2 • IGI LG620421287

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

Certificate IGI LG620421287

Diamond specifications and retailer prices

From £155 GBP
$208 USD
As of October 27, 2026
Save £629 GBP (80%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £784 GBP at Brilliance · As of November 1, 2026
View at Brilliance

About this 1.55ct lab-grown radiant diamond

This 1.55ct lab-grown radiant sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG620421287 or 620421287. Listed at 20 retailers as of October 27, 2026, with prices from £155 to £784, a £629 spread on the same certified stone. Brilliance lists it at £784. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
G
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.5°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620421287
Dimensions8.29 × 5.74 × 3.82 mm
L/W Ratio1.44
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
8.29 mm5.74 mm1.55 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620421287
Side View
Table 65.0%Crown 42.5°Girdle: MED-STKPavilion 35.3°Culet: NoneDepth 66.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: £784 GBP|Low: £154 GBP|High: £813 GBP|Avg: £444 GBP|+1.3%
Brilliance
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
Retailer 16
Retailer 17
November 2, 2026
Retailer 3£155 GBP
Retailer 4£174 GBP
Retailer 15£180 GBP
Retailer 7£200 GBP
Retailer 9£200 GBP
Retailer 14£259 GBP
Retailer 10£350 GBP
Retailer 11£355 GBP
Retailer 17£368 GBP
Retailer 13£384 GBP
Retailer 2£504 GBP
Retailer 8£642 GBP
Retailer 5£656 GBP
Retailer 16£750 GBP
Retailer 12£771 GBP
Retailer 6£775 GBP
Brilliance£784 GBP

42 data points across 17 retailers

20 retailers£155 GBP to £784 GBP

A
Cheapest Retailer
-
£155 GBP
$208 USD
A
Retailer 2
-
£174 GBP
$233 USD
View
Final sale: no returns
A
Retailer 3
-
£180 GBP
$242 USD
View
Retailer 4
-
£200 GBP
$268 USD
View
Price last confirmed 9 days ago
Retailer 5
-
£200 GBP
$268 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£259 GBP
$348 USD
View
A
Retailer 7
-
£350 GBP
€447 EUR
View
A
Retailer 8
-
£355 GBP
View
A
Retailer 9
-
£368 GBP
$494 USD
View
A
Retailer 10
-
£384 GBP
$515 USD
View
B+
Retailer 11
-
£504 GBP
$677 USD
View
B+
Retailer 12
-
£621 GBP
$834 USD
View
Retailer 13
-
£642 GBP
$861 USD
View
Price last confirmed 8 days ago
Retailer 14
-
£656 GBP
$880 USD
View
Price last confirmed 15 days ago
Retailer 15
-
£681 GBP
$914 USD
View
Price last confirmed 15 days ago
B+
Retailer 16
-
£719 GBP
$965 USD
View
B+
Retailer 17
-
£750 GBP
View
B+
Retailer 18
-
£771 GBP
View
B
Retailer 19
-
£775 GBP
$1,040 USD
View
Most Expensive
B
Brilliance
D23623105 · Nov 1
£784 GBP
$1,052 USD
View
19 more retailers have this diamond
Prices start from £155 GBPSave up to £629 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
1.55ct Radiant
£155 GBP