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Radiant|Lab Grown|IGI

1.55ct E VS1 Radiant Lab Grown Diamond

ID • E/VS1 • IGI LG828655979

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

Certificate IGI LG828655979

Diamond specifications and retailer prices

From £188 GBP
$250 USD
As of October 28, 2026
Save £922 GBP (83%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,110 GBP at Frank Darling · As of October 29, 2026
View at Frank Darling

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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG828655979 or 828655979. Listed at 7 retailers as of October 28, 2026, with prices from £188 to £1,110, a £922 spread on the same certified stone. Frank Darling lists it at £1,110. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.3°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828655979
Dimensions7.84 × 5.80 × 3.94 mm
L/W Ratio1.35
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.84 mm5.80 mm1.55 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828655979
Side View
Table 67.0%Crown 47.3°Girdle: MediumPavilion 38.9°Culet: NoneDepth 67.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: £1,110 GBP|Low: £137 GBP|High: £1,660 GBP|Avg: £620 GBP|-0.0%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 28, 2026
Retailer 2£188 GBP
Retailer 10£275 GBP
Retailer 5£283 GBP
Retailer 3£312 GBP
Retailer 11£393 GBP
Retailer 9£431 GBP
Retailer 7£521 GBP
Retailer 8£779 GBP
Retailer 6£781 GBP
Retailer 12£888 GBP
Frank Darling£1,110 GBP
Retailer 4£1,660 GBP

19 data points across 12 retailers

7 retailers£188 GBP to £1,110 GBP

A
Cheapest Retailer
-
£188 GBP
$250 USD
Final sale: no returns
A
Retailer 2
-
£275 GBP
View
Price last confirmed 43 days ago
B+
Retailer 3
-
£283 GBP
$377 USD
View
B+
Retailer 4
-
£521 GBP
$694 USD
View
Price last confirmed 16 days ago
B
Retailer 5
-
£779 GBP
$1,037 USD
View
Price last confirmed 24 days ago
B
Retailer 6
-
£781 GBP
$1,040 USD
View
Price last confirmed 15 days ago
Most Expensive
B
Frank Darling
100194745642KD · Oct 29
£1,110 GBP
$1,478 USD
View
6 more retailers have this diamond
Prices start from £188 GBPSave up to £922 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
£188 GBP