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Radiant|Lab Grown|IGI

1.33ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG780665762

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

Certificate IGI LG780665762

Diamond specifications and retailer prices

From £186 GBP
$249 USD
As of October 30, 2026
Save £1,605 GBP (90%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £2,220 GBP at Rare Carat · As of October 21, 2026
View at Rare Carat

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), with a top-tier cut grade and certified by IGI LG780665762 or 780665762. Listed at 16 retailers as of October 30, 2026, with a 864% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.33
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780665762
Dimensions7.74 × 5.47 × 3.65 mm
L/W Ratio1.41
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
7.74 mm5.47 mm1.33 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780665762
Side View
Table 63.0%Crown 40°Girdle: MediumPavilion 34.7°Culet: NoneDepth 66.7%

Caratlytics Score

How it works →
A+
Exceptional
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £2,220 GBP|Low: £186 GBP|High: £3,023 GBP|Avg: £974 GBP|+12.4%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 8£186 GBP
Retailer 5£288 GBP
Retailer 9£344 GBP
Retailer 12£386 GBP
Retailer 3£399 GBP
Retailer 2£436 GBP
Retailer 4£543 GBP
Retailer 11£743 GBP
Retailer 13£745 GBP
Retailer 7£1,024 GBP
Retailer 10£1,784 GBP
Retailer 6£1,791 GBP
Rare Carat£2,220 GBP

31 data points across 13 retailers

16 retailers£186 GBP to £1,791 GBP

A+
Cheapest Retailer
-
£186 GBP
$249 USD
Retailer 2
-
£255 GBP
$342 USD
View
Price last confirmed 32 days ago
A
Retailer 3
-
£288 GBP
$386 USD
View
Final sale: no returns
Retailer 4
-
£296 GBP
$396 USD
View
Price last confirmed 34 days ago
A
Retailer 5
-
£344 GBP
$461 USD
View
A
Retailer 6
-
£386 GBP
$517 USD
View
Retailer 7
-
£399 GBP
$535 USD
View
Price last confirmed 9 days ago
A
Retailer 8
-
£436 GBP
€557 EUR
View
A
Retailer 9
-
£543 GBP
$728 USD
View
B+
Retailer 10
-
£743 GBP
$995 USD
View
B+
Retailer 11
-
£745 GBP
$999 USD
View
B+
Retailer 12
-
£1,024 GBP
View
Retailer 13
-
£1,122 GBP
$1,503 USD
View
Price last confirmed 31 days ago
B
Retailer 14
-
£1,784 GBP
$2,390 USD
View
B
Retailer 15
-
£1,791 GBP
$2,400 USD
View
Most Expensive
Rare Carat
B84B-41B · Oct 21
£2,220 GBP
$2,975 USD
View
Price last confirmed 10 days ago
15 more retailers have this diamond
Prices start from £186 GBPSave up to £1,605 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
£186 GBP