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Radiant|Lab Grown|IGI

1.55ct H VS1 Radiant Lab Grown Diamond

EX • H/VS1 • IGI LG620412729

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

Certificate IGI LG620412729

Diamond specifications and retailer prices

From £153 GBP
$205 USD
As of October 30, 2026
Save £749 GBP (83%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £902 GBP at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG620412729 or 620412729. Listed at 21 retailers as of October 30, 2026, with prices from £153 to £902, a £749 spread on the same certified stone. Reve Diamonds lists it at £902. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.5°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620412729
Dimensions8.19 × 5.71 × 3.74 mm
L/W Ratio1.43
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
8.19 mm5.71 mm1.55 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620412729
Side View
Table 64.0%Crown 42.5°Girdle: MediumPavilion 34.8°Culet: NoneDepth 65.5%

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 30
Current: £199 GBP|Low: £141 GBP|High: £970 GBP|Avg: £464 GBP|+0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
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Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 16
Retailer 17
Retailer 18
Reve Diamonds
November 1, 2026
Retailer 2£153 GBP
Retailer 12£177 GBP
Retailer 10£182 GBP
Retailer 6£190 GBP
Retailer 1£199 GBP
Retailer 15£313 GBP
Retailer 11£327 GBP
Retailer 3£328 GBP
Retailer 17£382 GBP
Retailer 7£424 GBP
Retailer 18£437 GBP
Retailer 14£608 GBP
Retailer 16£610 GBP
Retailer 9£638 GBP
Retailer 5£648 GBP
Retailer 4£739 GBP
Retailer 8£754 GBP
Retailer 13£885 GBP
Reve Diamonds£902 GBP

32 data points across 19 retailers

21 retailers£153 GBP to £902 GBP

A
Cheapest Retailer
-
£153 GBP
$205 USD
A
Retailer 2
-
£177 GBP
$237 USD
View
Retailer 3
-
£182 GBP
$244 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
£190 GBP
$254 USD
View
A
Retailer 5
-
£199 GBP
$266 USD
View
Final sale: no returns
A
Retailer 6
-
£313 GBP
€400 EUR
View
A
Retailer 7
-
£327 GBP
ZAR 7,074 ZAR
View
B+
Retailer 8
-
£328 GBP
$439 USD
View
A
Retailer 9
-
£382 GBP
$512 USD
View
A
Retailer 10
-
£424 GBP
A$874 AUD
View
A
Retailer 11
-
£437 GBP
$586 USD
View
B+
Retailer 12
-
£475 GBP
$636 USD
View
B+
Retailer 13
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£589 GBP
View
B+
Retailer 14
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£608 GBP
$815 USD
View
B+
Retailer 15
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£610 GBP
$818 USD
View
B+
Retailer 16
-
£638 GBP
$855 USD
View
B+
Retailer 17
-
£648 GBP
$869 USD
View
B+
Retailer 18
-
£739 GBP
View
B+
Retailer 19
-
£754 GBP
$1,010 USD
View
B
Retailer 20
-
£885 GBP
View
Most Expensive
B
Reve Diamonds
5814D622A · Nov 1
£902 GBP
$1,208 USD
View
20 more retailers have this diamond
Prices start from £153 GBPSave up to £749 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
£153 GBP