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Radiant|Lab Grown|IGI

1.39ct E FL Radiant Lab Grown Diamond

E/FL

Diamond specifications and retailer prices

From £220 GBP
$293 USD
As of October 30, 2026
Save £1,657 GBP (88%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,877 GBP at Helzberg Diamonds · As of October 29, 2026
View at Helzberg Diamonds

About this 1.39ct lab-grown radiant diamond

This 1.39ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless) and certified by IGI. Listed at 6 retailers as of October 29, 2026, with prices from £220 to £1,877, a £1,657 spread on the same certified stone. Helzberg Diamonds lists it at £1,877. 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

1.39
Carat
E
Colour
FL
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions7.80 × 5.36 × 3.71 mm
L/W Ratio1.46
Top View
7.80 mm5.36 mm1.39 ctE / FL
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 66.0%CrownGirdle: Slightly ThickPavilionCuletDepth 69.2%

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 30
Current: £1,877 GBP|Low: £220 GBP|High: £1,877 GBP|Avg: £804 GBP
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 27, 2026
Retailer 2£220 GBP
Retailer 6£255 GBP
Retailer 3£273 GBP
Retailer 5£273 GBP
Retailer 4£877 GBP
Helzberg Diamonds£1,877 GBP

9 data points across 6 retailers

6 retailers£220 GBP to £1,877 GBP

A
Cheapest Retailer
-
£220 GBP
$293 USD
B+
Retailer 2
-
£255 GBP
$340 USD
View
B+
Retailer 3
-
£273 GBP
$363 USD
View
B+
Retailer 4
-
£273 GBP
$363 USD
View
B
Retailer 5
-
£877 GBP
$1,168 USD
View
Most Expensive
C
Helzberg Diamonds
ZXZNPPMJPGJO · Oct 29
£1,877 GBP
$2,500 USD
View
5 more retailers have this diamond
Prices start from £220 GBPSave up to £1,657 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
1.39ct Radiant
£220 GBP