Radiant|Lab Grown|IGI

1.90ct E FL Radiant Lab Grown Diamond

E/FL

Diamond specifications and retailer prices

From £450 GBP
$603 USD
As of October 30, 2026
Save £2,139 GBP (83%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £2,589 GBP at Helzberg Diamonds · As of November 1, 2026
View at Helzberg Diamonds

About this 1.9ct lab-grown radiant diamond

This 1.9ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless) and certified by IGI. Listed at 6 retailers as of October 30, 2026, with prices from £450 to £2,589, a £2,139 spread on the same certified stone. Helzberg Diamonds lists it at £2,589. 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

1.90
Carat
E
Colour
FL
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions8.49 × 6.30 × 4.16 mm
L/W Ratio1.35
Top View
8.49 mm6.30 mm1.90 ctE / FL
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 66.0%CrownGirdle: MediumPavilionCuletDepth 66.0%

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: £2,589 GBP|Low: £450 GBP|High: £3,680 GBP|Avg: £1,291 GBP|-29.6%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 16, 2026
Retailer 5£450 GBP
Retailer 4£505 GBP
Retailer 2£558 GBP
Retailer 3£558 GBP
Retailer 6£1,469 GBP
Helzberg Diamonds£2,589 GBP

14 data points across 6 retailers

6 retailers£450 GBP to £2,589 GBP

A
Cheapest Retailer
-
£450 GBP
$603 USD
B+
Retailer 2
-
£505 GBP
$676 USD
View
Retailer 3
-
£558 GBP
$748 USD
View
Price last confirmed 16 days ago
B+
Retailer 4
-
£558 GBP
$748 USD
View
B
Retailer 5
-
£1,469 GBP
$1,968 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOILMMNHML · Nov 1
£2,589 GBP
$3,469 USD
View
5 more retailers have this diamond
Prices start from £450 GBPSave up to £2,139 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
1.90ct Radiant
£450 GBP