Radiant|Lab Grown|IGI

1.45ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG836619997

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

Certificate IGI LG836619997

Diamond specifications and retailer prices

From £231 GBP
$309 USD
As of October 30, 2026
Save £2,016 GBP (90%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £2,411 GBP at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 1.45ct lab-grown radiant diamond

This 1.45ct 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 LG836619997 or 836619997. Listed at 19 retailers as of October 30, 2026, with a 874% 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

1.45
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836619997
Dimensions7.73 × 5.70 × 3.91 mm
L/W Ratio1.36
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
7.73 mm5.70 mm1.45 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836619997
Side View
Table 68.0%Crown 40°Girdle: MED-STKPavilion 38°Culet: NoneDepth 68.6%

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 30
Current: £2,411 GBP|Low: £231 GBP|High: £3,321 GBP|Avg: £883 GBP|-1.7%
Rare Carat
Retailer 2
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Retailer 6
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Retailer 10
Retailer 11
Retailer 12
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Retailer 19
October 30, 2026
Retailer 7£231 GBP
Retailer 17£267 GBP
Retailer 10£276 GBP
Retailer 6£286 GBP
Retailer 16£286 GBP
Retailer 15£403 GBP
Retailer 18£466 GBP
Retailer 14£491 GBP
Retailer 12£508 GBP
Retailer 8£529 GBP
Retailer 3£806 GBP
Retailer 19£878 GBP
Retailer 9£899 GBP
Retailer 5£919 GBP
Retailer 4£954 GBP
Retailer 11£1,054 GBP
Retailer 13£1,152 GBP
Retailer 2£2,246 GBP
Rare Carat£2,411 GBP

35 data points across 19 retailers

19 retailers£231 GBP to £2,246 GBP

A
Cheapest Retailer
-
£231 GBP
$309 USD
A
Retailer 2
-
£267 GBP
$358 USD
View
A
Retailer 3
-
£276 GBP
$370 USD
View
Final sale: no returns
A
Retailer 4
-
£286 GBP
$383 USD
View
A
Retailer 5
-
£286 GBP
$383 USD
View
A
Retailer 6
-
£403 GBP
$540 USD
View
A
Retailer 7
-
£466 GBP
$624 USD
View
A
Retailer 8
-
£491 GBP
ZAR 10,634 ZAR
View
A
Retailer 9
-
£508 GBP
View
Retailer 10
-
£529 GBP
€675 EUR
View
Price last confirmed 7 days ago
B+
Retailer 11
-
£806 GBP
$1,080 USD
View
B+
Retailer 12
-
£878 GBP
$1,177 USD
View
B+
Retailer 13
-
£899 GBP
$1,204 USD
View
B+
Retailer 14
-
£919 GBP
$1,231 USD
View
B+
Retailer 15
-
£954 GBP
$1,278 USD
View
B+
Retailer 16
-
£1,054 GBP
SGD 1,909 SGD
View
B+
Retailer 17
-
£1,152 GBP
View
B
Retailer 18
-
£2,246 GBP
$3,010 USD
View
Most Expensive
Rare Carat
PD-241676 · Oct 21
£2,411 GBP
$3,230 USD
View
Price last confirmed 9 days ago
18 more retailers have this diamond
Prices start from £231 GBPSave up to £2,016 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
1.45ct Radiant
£231 GBP