Radiant|Lab Grown|IGI

1.01ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG665445200

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

Certificate IGI LG665445200

Diamond specifications and retailer prices

From £148 GBP
$199 USD
As of October 30, 2026
Save £1,275 GBP (90%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: £1,423 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.01ct lab-grown radiant diamond

This 1.01ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG665445200 or 665445200. Listed at 30 retailers as of October 30, 2026, with prices from £148 to £1,423, a £1,275 spread on the same certified stone. Do Amore Diamonds lists it at £1,423. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.01
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.2°
Pavilion angle32.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665445200
Dimensions5.00 × 5.00 × 3.20 mm
L/W Ratio1.00
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
5.00 mm5.00 mm1.01 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665445200
Side View
Table 63.0%Crown 42.2°Girdle: MediumPavilion 32.5°Culet: NoneDepth 64.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £814 GBP|Low: £148 GBP|High: £1,394 GBP|Avg: £470 GBP
Retailer 1
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 1, 2026
Retailer 3£148 GBP
Retailer 14£170 GBP
Retailer 5£172 GBP
Retailer 6£182 GBP
Retailer 4£287 GBP
Retailer 9£343 GBP
Retailer 12£349 GBP
Retailer 7£361 GBP
Retailer 8£378 GBP
Retailer 13£496 GBP
Retailer 2£594 GBP
Retailer 11£746 GBP
Retailer 1£814 GBP
Retailer 15£928 GBP
Retailer 10£1,073 GBP

43 data points across 15 retailers

30 retailers£148 GBP to £1,423 GBP

A
Cheapest Retailer
-
£148 GBP
$199 USD
Retailer 2
-
£148 GBP
$199 USD
View
Price last confirmed 25 days ago
Retailer 3
-
£148 GBP
$199 USD
View
Price last confirmed 33 days ago
A
Retailer 4
-
£170 GBP
$228 USD
View
Final sale: no returns
Retailer 5
-
£172 GBP
$231 USD
View
Price last confirmed 36 days ago
Retailer 6
-
£182 GBP
$244 USD
View
Price last confirmed 34 days ago
Retailer 7
-
£184 GBP
$247 USD
View
Price last confirmed 30 days ago
A
Retailer 8
-
£286 GBP
HK$3,000 HKD
View
A
Retailer 9
-
£287 GBP
$385 USD
View
A
Retailer 10
-
£319 GBP
$428 USD
View
A
Retailer 11
-
£343 GBP
€438 EUR
View
A
Retailer 12
-
£349 GBP
ZAR 7,567 ZAR
View
A
Retailer 13
-
£361 GBP
$484 USD
View
Retailer 14
-
£368 GBP
View
Price last confirmed 18 days ago
A
Retailer 15
-
£378 GBP
View
A
Retailer 16
-
£440 GBP
$591 USD
View
B+
Retailer 17
-
£496 GBP
A$1,025 AUD
View
B+
Retailer 18
-
£594 GBP
$797 USD
View
B+
Retailer 19
-
£653 GBP
$876 USD
View
Retailer 20
-
£653 GBP
$876 USD
View
Price last confirmed 23 days ago
Retailer 21
-
£653 GBP
$876 USD
View
Price last confirmed 33 days ago
B+
Retailer 22
-
£700 GBP
SGD 1,270 SGD
View
B+
Retailer 23
-
£746 GBP
A$1,540 AUD
View
B
Retailer 24
-
£781 GBP
$1,048 USD
View
B+
Retailer 25
-
£814 GBP
View
B
Retailer 26
-
£888 GBP
$1,191 USD
View
Retailer 27
-
£928 GBP
$1,245 USD
View
Price last confirmed 12 days ago
B
Retailer 28
-
£1,073 GBP
$1,440 USD
View
B
Retailer 29
-
£1,165 GBP
View
Most Expensive
B
Do Amore Diamonds
27-609801FFB · Oct 31
£1,423 GBP
$1,910 USD
View
29 more retailers have this diamond
Prices start from £148 GBPSave up to £1,275 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
1.01ct Radiant
£148 GBP