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Radiant|Lab Grown|IGI

1.55ct F VS1 Radiant Lab Grown Diamond

GD • F/VS1 • IGI LG685580793

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

Certificate IGI LG685580793

Diamond specifications and retailer prices

From £156 GBP
As of November 4, 2026
Save £1,337 GBP (90%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,493 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore 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 F colour (colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG685580793 or 685580793. Listed at 17 retailers as of November 4, 2026, with prices from £156 to £1,493, a £1,337 spread on the same certified stone. Do Amore Diamonds lists it at £1,493. 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
F
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG685580793
Dimensions8.96 × 5.76 × 3.93 mm
L/W Ratio1.56
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.96 mm5.76 mm1.55 ctF / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG685580793
Side View
Table 62.0%Crown 33.5°Girdle: MediumPavilion 37.6°Culet: NoneDepth 48.6%

Caratlytics Score

How it works →
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 4
Current: £1,493 GBP|Low: £148 GBP|High: £1,493 GBP|Avg: £508 GBP
Do Amore Diamonds
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
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Retailer 16
November 5, 2026
Retailer 13£156 GBP
Retailer 6£174 GBP
Retailer 5£181 GBP
Retailer 3£193 GBP
Retailer 14£193 GBP
Retailer 15£260 GBP
Retailer 2£398 GBP
Retailer 4£440 GBP
Retailer 9£498 GBP
Retailer 12£669 GBP
Retailer 16£686 GBP
Retailer 8£736 GBP
Retailer 7£813 GBP
Retailer 11£847 GBP
Retailer 10£854 GBP
Do Amore Diamonds£1,493 GBP

45 data points across 16 retailers

17 retailers£156 GBP to £1,493 GBP

A
Cheapest Retailer
-
£156 GBP
B+
Retailer 2
-
£174 GBP
View
Final sale: no returns
B+
Retailer 3
-
£181 GBP
View
Retailer 4
-
£193 GBP
View
Price last confirmed 12 days ago
B+
Retailer 5
-
£193 GBP
View
B
Retailer 6
-
£260 GBP
View
B+
Retailer 7
-
£398 GBP
View
B+
Retailer 8
-
£440 GBP
View
B+
Retailer 9
-
£498 GBP
View
B
Retailer 10
-
£586 GBP
View
Retailer 11
-
£669 GBP
View
Price last confirmed 8 days ago
B
Retailer 12
-
£686 GBP
View
Retailer 13
-
£736 GBP
View
Price last confirmed 9 days ago
B
Retailer 14
-
£813 GBP
View
B
Retailer 15
-
£847 GBP
View
B
Retailer 16
-
£854 GBP
View
Most Expensive
C
Do Amore Diamonds
27-811934359 · Nov 4
£1,493 GBP
$2,010 USD
View
16 more retailers have this diamond
Prices start from £156 GBPSave up to £1,337 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
£156 GBP