Radiant|Lab Grown|IGI

1.33ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG799639117

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

Certificate IGI LG799639117

Diamond specifications and retailer prices

From £233 GBP
$312 USD
As of October 31, 2026
Save £1,648 GBP (88%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £3,045 GBP at Brilliant Earth · As of September 28, 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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG799639117 or 799639117. Listed at 21 retailers as of October 30, 2026, with a 708% 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.9°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799639117
Dimensions7.60 × 5.49 × 3.76 mm
L/W Ratio1.38
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
7.60 mm5.49 mm1.33 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799639117
Side View
Table 66.0%Crown 41.9°Girdle: STK-THKPavilion 36.7°Culet: NoneDepth 68.5%

Caratlytics Score

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A
Excellent
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 31
Current: £1,881 GBP|Low: £233 GBP|High: £3,045 GBP|Avg: £901 GBP|-38.2%
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
Retailer 16
October 31, 2026
Retailer 9£233 GBP
Retailer 8£365 GBP
Retailer 10£403 GBP
Retailer 15£426 GBP
Retailer 12£444 GBP
Retailer 13£448 GBP
Retailer 11£455 GBP
Retailer 2£492 GBP
Retailer 3£684 GBP
Retailer 14£793 GBP
Retailer 6£824 GBP
Retailer 16£868 GBP
Retailer 7£976 GBP
Retailer 4£1,036 GBP
Brilliant Earth£1,881 GBP
Retailer 5£2,243 GBP

32 data points across 16 retailers

21 retailers£233 GBP to £1,881 GBP

A
Cheapest Retailer
-
£233 GBP
$312 USD
Final sale: no returns
Retailer 2
-
£282 GBP
$378 USD
View
Price last confirmed 29 days ago
Retailer 3
-
£329 GBP
$441 USD
View
Price last confirmed 34 days ago
Retailer 4
-
£365 GBP
$489 USD
View
Price last confirmed 28 days ago
A
Retailer 5
-
£403 GBP
$540 USD
View
A
Retailer 6
-
£426 GBP
$571 USD
View
A
Retailer 7
-
£444 GBP
ZAR 9,603 ZAR
View
A
Retailer 8
-
£448 GBP
$600 USD
View
A
Retailer 9
-
£455 GBP
View
Retailer 10
-
£492 GBP
€628 EUR
View
B+
Retailer 11
-
£684 GBP
$917 USD
View
B+
Retailer 12
-
£793 GBP
$1,063 USD
View
Retailer 13
-
£802 GBP
$1,075 USD
View
Price last confirmed 26 days ago
B+
Retailer 14
-
£824 GBP
$1,104 USD
View
B+
Retailer 15
-
£868 GBP
$1,163 USD
View
B+
Retailer 16
-
£976 GBP
SGD 1,768 SGD
View
B
Retailer 17
-
£1,036 GBP
View
Retailer 18
-
£1,172 GBP
$1,570 USD
View
Price last confirmed 30 days ago
B
Retailer 19
-
£1,881 GBP
$2,520 USD
View
Retailer 20
-
£2,243 GBP
$3,005 USD
View
Price last confirmed 17 days ago
Most Expensive
Brilliant Earth
20484758A · Sep 28
£3,045 GBP
$4,080 USD
View
Price last confirmed 32 days ago
20 more retailers have this diamond
Prices start from £233 GBPSave up to £1,648 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
£233 GBP