Radiant|Lab Grown|IGI

1.55ct E VS2 Radiant Lab Grown Diamond

VG • E/VS2 • IGI LG677570742

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

Certificate IGI LG677570742

Diamond specifications and retailer prices

From £143 GBP
$192 USD
As of October 30, 2026
Save £1,014 GBP (88%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,157 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

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 E colour (colourless) and VS2 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG677570742 or 677570742. Listed at 18 retailers as of October 30, 2026, with prices from £143 to £1,157, a £1,014 spread on the same certified stone. Brilliant Earth lists it at £1,157. 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
E
Colour
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle25°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG677570742
Dimensions8.45 × 5.78 × 3.97 mm
L/W Ratio1.46
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.45 mm5.78 mm1.55 ctE / VS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG677570742
Side View
Table 66.0%Crown 25°Girdle: ThinPavilion 38°Culet: NoneDepth 68.7%

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: £1,157 GBP|Low: £137 GBP|High: £1,261 GBP|Avg: £434 GBP|-8.3%
Brilliant Earth
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
October 31, 2026
Retailer 15£143 GBP
Retailer 14£160 GBP
Retailer 6£166 GBP
Retailer 3£178 GBP
Retailer 12£178 GBP
Retailer 10£209 GBP
Retailer 2£307 GBP
Retailer 5£310 GBP
Retailer 8£323 GBP
Retailer 7£371 GBP
Retailer 11£475 GBP
Retailer 4£571 GBP
Retailer 13£738 GBP
Retailer 9£834 GBP
Brilliant Earth£1,157 GBP

44 data points across 15 retailers

18 retailers£143 GBP to £1,157 GBP

A
Cheapest Retailer
-
£143 GBP
$192 USD
A
Retailer 2
-
£160 GBP
$214 USD
View
Final sale: no returns
A
Retailer 3
-
£166 GBP
$223 USD
View
A
Retailer 4
-
£178 GBP
$238 USD
View
A
Retailer 5
-
£178 GBP
$238 USD
View
Retailer 6
-
£209 GBP
View
Price last confirmed 14 days ago
Retailer 7
-
£307 GBP
€392 EUR
View
B+
Retailer 8
-
£310 GBP
$415 USD
View
A
Retailer 9
-
£323 GBP
View
B+
Retailer 10
-
£371 GBP
$497 USD
View
B+
Retailer 11
-
£378 GBP
$506 USD
View
B+
Retailer 12
-
£475 GBP
$636 USD
View
B+
Retailer 13
-
£554 GBP
View
B+
Retailer 14
-
£571 GBP
$765 USD
View
B
Retailer 15
-
£611 GBP
$818 USD
View
B
Retailer 16
-
£738 GBP
$989 USD
View
B
Retailer 17
-
£834 GBP
View
Most Expensive
B
Brilliant Earth
15181657A · Oct 30
£1,157 GBP
$1,550 USD
View
17 more retailers have this diamond
Prices start from £143 GBPSave up to £1,014 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
£143 GBP