Radiant|Lab Grown|IGI

1.88ct E FL Radiant Lab Grown Diamond

E/FL

Diamond specifications and retailer prices

From £446 GBP
$597 USD
As of October 30, 2026
Save £2,120 GBP (83%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £2,566 GBP at Helzberg Diamonds · As of October 31, 2026
View at Helzberg Diamonds

About this 1.88ct lab-grown radiant diamond

This 1.88ct 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 £446 to £2,566, a £2,120 spread on the same certified stone. Helzberg Diamonds lists it at £2,566. 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

1.88
Carat
E
Colour
FL
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions8.49 × 6.02 × 4.26 mm
L/W Ratio1.41
Top View
8.49 mm6.02 mm1.88 ctE / FL
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 62.0%CrownGirdle: Slightly ThickPavilionCuletDepth 70.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £2,566 GBP|Low: £446 GBP|High: £2,962 GBP|Avg: £1,237 GBP|-13.4%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 16, 2026
Retailer 5£446 GBP
Retailer 4£499 GBP
Retailer 2£553 GBP
Retailer 3£553 GBP
Retailer 6£1,454 GBP
Helzberg Diamonds£2,566 GBP

13 data points across 6 retailers

6 retailers£446 GBP to £2,566 GBP

B+
Cheapest Retailer
-
£446 GBP
$597 USD
B+
Retailer 2
-
£499 GBP
$669 USD
View
Retailer 3
-
£553 GBP
$741 USD
View
Price last confirmed 16 days ago
B+
Retailer 4
-
£553 GBP
$741 USD
View
B
Retailer 5
-
£1,454 GBP
$1,948 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOHOMLKIMO · Oct 31
£2,566 GBP
$3,438 USD
View
5 more retailers have this diamond
Prices start from £446 GBPSave up to £2,120 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.

B+
1.88ct Radiant
£446 GBP