Radiant|Lab Grown|IGI

1.55ct H VS1 Radiant Lab Grown Diamond

GD • H/VS1 • IGI LG675583474

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

Certificate IGI LG675583474

Diamond specifications and retailer prices

From £307 GBP
$412 USD
As of November 1, 2026
Save £768 GBP (71%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,076 GBP at MOH London · As of November 1, 2026
View at MOH London

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 standard cut grade and certified by IGI LG675583474 or 675583474. Listed at 7 retailers as of November 1, 2026, with prices from £307 to £1,076, a £768 spread on the same certified stone. MOH London lists it at £1,076. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.55
Carat
H
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.1°
Pavilion angle32.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG675583474
Dimensions8.64 × 5.51 × 3.63 mm
L/W Ratio1.57
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.64 mm5.51 mm1.55 ctH / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG675583474
Side View
Table 63.0%Crown 43.1°Girdle: MED-STKPavilion 32.1°Culet: NoneDepth 65.9%

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: Nov 1
Current: £1,076 GBP|Low: £307 GBP|High: £1,403 GBP|Avg: £685 GBP|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 5£307 GBP
Retailer 4£326 GBP
Retailer 3£334 GBP
Retailer 9£373 GBP
Retailer 2£646 GBP
Retailer 8£754 GBP
Retailer 6£987 GBP
MOH London£1,076 GBP
Retailer 7£1,403 GBP

8 data points across 9 retailers

7 retailers£307 GBP to £1,076 GBP

A
Cheapest Retailer
-
£307 GBP
$412 USD
B+
Retailer 2
-
£326 GBP
$437 USD
View
B+
Retailer 3
-
£334 GBP
$448 USD
View
B
Retailer 4
-
£646 GBP
$865 USD
View
B
Retailer 5
-
£655 GBP
View
B
Retailer 6
-
£987 GBP
$1,322 USD
View
Most Expensive
B
MOH London
LG675583474 · Nov 1
£1,076 GBP
View
6 more retailers have this diamond
Prices start from £307 GBPSave up to £768 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
£307 GBP