CaratHunter
Plans
Radiant|Lab Grown|IGI

1.33ct D IF Radiant Lab Grown Diamond

VG • D/IF • IGI LG623421838

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

Certificate IGI LG623421838

Diamond specifications and retailer prices

From £235 GBP
As of November 4, 2026
Save £1,395 GBP (86%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £1,630 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

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 IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG623421838 or 623421838. Listed at 24 retailers as of November 4, 2026, with prices from £235 to £1,630, a £1,395 spread on the same certified stone. Brilliant Earth lists it at £1,630. 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
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.7°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG623421838
Dimensions7.40 × 5.52 × 3.86 mm
L/W Ratio1.34
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.40 mm5.52 mm1.33 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG623421838
Side View
Table 58.0%Crown 44.7°Girdle: MED-STKPavilion 35.5°Culet: NoneDepth 69.9%

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: Nov 4
Current: £1,630 GBP|Low: £225 GBP|High: £2,667 GBP|Avg: £772 GBP|-38.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 4, 2026
Retailer 4£235 GBP
Retailer 5£291 GBP
Retailer 2£299 GBP
Retailer 7£393 GBP
Retailer 14£407 GBP
Retailer 13£454 GBP
Retailer 11£502 GBP
Retailer 9£514 GBP
Retailer 8£716 GBP
Retailer 10£727 GBP
Retailer 6£936 GBP
Retailer 3£1,006 GBP
Retailer 12£1,167 GBP
Retailer 15£1,389 GBP
Brilliant Earth£1,630 GBP

39 data points across 15 retailers

24 retailers£235 GBP to £1,630 GBP

A
Cheapest Retailer
-
£235 GBP
A
Retailer 2
-
£262 GBP
View
Final sale: no returns
A
Retailer 3
-
£273 GBP
View
Retailer 4
-
£291 GBP
View
Price last confirmed 10 days ago
A
Retailer 5
-
£291 GBP
View
A
Retailer 6
-
£299 GBP
View
A
Retailer 7
-
£393 GBP
View
A
Retailer 8
-
£407 GBP
View
A
Retailer 9
-
£454 GBP
View
A
Retailer 10
-
£477 GBP
View
A
Retailer 11
-
£502 GBP
View
A
Retailer 12
-
£514 GBP
View
B+
Retailer 13
-
£690 GBP
View
B+
Retailer 14
-
£716 GBP
View
B+
Retailer 15
-
£727 GBP
View
B+
Retailer 16
-
£785 GBP
View
B
Retailer 17
-
£936 GBP
View
B
Retailer 18
-
£970 GBP
View
Retailer 19
-
£1,006 GBP
View
Price last confirmed 27 days ago
B
Retailer 20
-
£1,035 GBP
View
B
Retailer 21
-
£1,161 GBP
View
B
Retailer 22
-
£1,167 GBP
View
Retailer 23
-
£1,389 GBP
View
Price last confirmed 14 days ago
Most Expensive
B
Brilliant Earth
9481163A · Nov 4
£1,630 GBP
$2,200 USD
View
23 more retailers have this diamond
Prices start from £235 GBPSave up to £1,395 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
£235 GBP