Radiant|Lab Grown|IGI

1.46ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG801694978

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

Certificate IGI LG801694978

Diamond specifications and retailer prices

From £274 GBP
$367 USD
As of October 30, 2026
Save £2,465 GBP (90%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,739 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.46ct lab-grown radiant diamond

This 1.46ct 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 LG801694978 or 801694978. Listed at 12 retailers as of October 30, 2026, with prices from £274 to £2,739, a £2,465 spread on the same certified stone. Brilliant Earth lists it at £2,739. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.46
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.6°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801694978
Dimensions7.84 × 5.63 × 3.94 mm
L/W Ratio1.39
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
7.84 mm5.63 mm1.46 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG801694978
Side View
Table 62.0%Crown 39.6°Girdle: Slightly ThickPavilion 36.7°Culet: NoneDepth 70.0%

Caratlytics Score

How it works →
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 30
Current: £2,739 GBP|Low: £274 GBP|High: £3,941 GBP|Avg: £1,356 GBP|-30.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 5£274 GBP
Retailer 10£318 GBP
Retailer 3£504 GBP
Retailer 8£543 GBP
Retailer 12£628 GBP
Retailer 4£662 GBP
Retailer 7£996 GBP
Retailer 9£1,205 GBP
Retailer 2£1,473 GBP
Retailer 11£2,418 GBP
Retailer 6£2,433 GBP
Brilliant Earth£2,739 GBP

29 data points across 12 retailers

12 retailers£274 GBP to £2,739 GBP

A
Cheapest Retailer
-
£274 GBP
$367 USD
A
Retailer 2
-
£318 GBP
$426 USD
View
A
Retailer 3
-
£504 GBP
$675 USD
View
A
Retailer 4
-
£543 GBP
$728 USD
View
Retailer 5
-
£628 GBP
€801 EUR
View
Price last confirmed 7 days ago
B+
Retailer 6
-
£662 GBP
$887 USD
View
B+
Retailer 7
-
£996 GBP
$1,335 USD
View
B
Retailer 8
-
£1,205 GBP
$1,615 USD
View
B
Retailer 9
-
£1,473 GBP
View
Retailer 10
-
£2,418 GBP
$3,240 USD
View
Price last confirmed 10 days ago
B
Retailer 11
-
£2,433 GBP
$3,260 USD
View
Most Expensive
B
Brilliant Earth
21059962Y · Oct 30
£2,739 GBP
$3,670 USD
View
11 more retailers have this diamond
Prices start from £274 GBPSave up to £2,465 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
1.46ct Radiant
£274 GBP