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Radiant|Lab Grown|IGI

1.22ct D IF Radiant Lab Grown Diamond

GD • D/IF • IGI LG743509184

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

Certificate IGI LG743509184

Diamond specifications and retailer prices

From £174 GBP
As of November 4, 2026
Save £1,189 GBP (87%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,367 GBP at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 1.22ct lab-grown radiant diamond

This 1.22ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG743509184 or 743509184. Listed at 21 retailers as of November 4, 2026, with a 683% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.22
Carat
D
Colour
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.5°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743509184
Dimensions7.60 × 5.26 × 3.46 mm
L/W Ratio1.44
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
7.60 mm5.26 mm1.22 ctD / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743509184
Side View
Table 63.0%Crown 45.5°Girdle: Slightly ThickPavilion 33.9°Culet: NoneDepth 65.8%

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: Nov 4
Current: £1,367 GBP|Low: £174 GBP|High: £1,815 GBP|Avg: £572 GBP|-0.5%
Rare Carat
Retailer 2
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Retailer 21
November 4, 2026
Retailer 6£174 GBP
Retailer 10£195 GBP
Retailer 20£202 GBP
Retailer 4£216 GBP
Retailer 11£216 GBP
Retailer 2£221 GBP
Retailer 5£237 GBP
Retailer 18£360 GBP
Retailer 12£365 GBP
Retailer 16£373 GBP
Retailer 8£394 GBP
Retailer 13£404 GBP
Retailer 15£530 GBP
Retailer 3£574 GBP
Retailer 7£695 GBP
Retailer 21£697 GBP
Retailer 9£733 GBP
Retailer 17£866 GBP
Retailer 14£967 GBP
Retailer 19£1,363 GBP
Rare Carat£1,367 GBP

31 data points across 21 retailers

21 retailers£174 GBP to £1,363 GBP

A
Cheapest Retailer
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£174 GBP
A
Retailer 2
-
£195 GBP
View
Final sale: no returns
A
Retailer 3
-
£202 GBP
View
Retailer 4
-
£216 GBP
View
Price last confirmed 10 days ago
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Retailer 5
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£216 GBP
View
A
Retailer 6
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£221 GBP
View
A
Retailer 7
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£237 GBP
View
A
Retailer 8
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£360 GBP
View
A
Retailer 9
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£365 GBP
View
A
Retailer 10
-
£373 GBP
View
B+
Retailer 11
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£394 GBP
View
A
Retailer 12
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£404 GBP
View
B+
Retailer 13
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£530 GBP
View
B+
Retailer 14
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£574 GBP
View
B+
Retailer 15
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£695 GBP
View
B
Retailer 16
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£697 GBP
View
B
Retailer 17
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£733 GBP
View
B
Retailer 18
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£866 GBP
View
B
Retailer 19
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£967 GBP
View
B
Retailer 20
-
£1,363 GBP
View
Most Expensive
Rare Carat
A2-307A · Oct 18
£1,367 GBP
$1,845 USD
View
Price last confirmed 16 days ago
20 more retailers have this diamond
Prices start from £174 GBPSave up to £1,189 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
1.22ct Radiant
£174 GBP