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Radiant|Lab Grown|IGI

1.33ct D FL Radiant Lab Grown Diamond

D/FL

Diamond specifications and retailer prices

From £208 GBP
$279 USD
As of October 30, 2026
Save £1,676 GBP (89%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,884 GBP at Helzberg Diamonds · As of October 31, 2026
View at Helzberg Diamonds

About this 1.33ct lab-grown radiant diamond

This 1.33ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded D 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 £208 to £1,884, a £1,676 spread on the same certified stone. Helzberg Diamonds lists it at £1,884. 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

1.33
Carat
D
Colour
FL
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions7.60 × 5.49 × 3.76 mm
L/W Ratio1.38
Top View
7.60 mm5.49 mm1.33 ctD / FL
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 66.0%CrownGirdle: STK-THKPavilionCuletDepth 68.5%

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: £1,884 GBP|Low: £208 GBP|High: £1,884 GBP|Avg: £794 GBP
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 27, 2026
Retailer 2£208 GBP
Retailer 6£242 GBP
Retailer 3£258 GBP
Retailer 5£258 GBP
Retailer 4£830 GBP
Helzberg Diamonds£1,884 GBP

9 data points across 6 retailers

6 retailers£208 GBP to £1,884 GBP

A
Cheapest Retailer
-
£208 GBP
$279 USD
B+
Retailer 2
-
£242 GBP
$324 USD
View
B+
Retailer 3
-
£258 GBP
$346 USD
View
B+
Retailer 4
-
£258 GBP
$346 USD
View
B
Retailer 5
-
£830 GBP
$1,112 USD
View
Most Expensive
C
Helzberg Diamonds
ZXZNPPMJPHHN · Oct 31
£1,884 GBP
$2,525 USD
View
5 more retailers have this diamond
Prices start from £208 GBPSave up to £1,676 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
1.33ct Radiant
£208 GBP