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Radiant|Lab Grown|IGI

1.18ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG689562550

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

Certificate IGI LG689562550

Diamond specifications and retailer prices

From £162 GBP
As of November 4, 2026
Save £1,530 GBP (90%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,692 GBP at Yadav Diamonds · As of November 4, 2026
View at Yadav Diamonds

About this 1.18ct lab-grown radiant diamond

This 1.18ct 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 LG689562550 or 689562550. Listed at 20 retailers as of November 4, 2026, with prices from £162 to £1,692, a £1,530 spread on the same certified stone. Yadav Diamonds lists it at £1,692. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.18
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG689562550
Dimensions7.50 × 5.19 × 3.47 mm
L/W Ratio1.45
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
7.50 mm5.19 mm1.18 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG689562550
Side View
Table 67.0%Crown 48°Girdle: MediumPavilion 34.2°Culet: NoneDepth 66.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £162 GBP|Low: £150 GBP|High: £1,556 GBP|Avg: £568 GBP|+7.9%
Retailer 1
Retailer 2
Retailer 3
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Retailer 11
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Retailer 18
November 4, 2026
Retailer 1£162 GBP
Retailer 3£181 GBP
Retailer 15£188 GBP
Retailer 9£197 GBP
Retailer 4£201 GBP
Retailer 13£271 GBP
Retailer 6£376 GBP
Retailer 14£416 GBP
Retailer 17£421 GBP
Retailer 8£432 GBP
Retailer 5£544 GBP
Retailer 18£564 GBP
Retailer 11£714 GBP
Retailer 2£841 GBP
Retailer 7£873 GBP
Retailer 10£1,026 GBP
Retailer 16£1,274 GBP
Retailer 12£1,556 GBP

20 data points across 18 retailers

20 retailers£162 GBP to £1,692 GBP

A
Cheapest Retailer
-
£162 GBP
A
Retailer 2
-
£181 GBP
View
Final sale: no returns
A
Retailer 3
-
£188 GBP
View
Retailer 4
-
£197 GBP
View
Price last confirmed 10 days ago
A
Retailer 5
-
£201 GBP
View
A
Retailer 6
-
£271 GBP
View
A
Retailer 7
-
£376 GBP
View
A
Retailer 8
-
£416 GBP
View
A
Retailer 9
-
£421 GBP
View
A
Retailer 10
-
£432 GBP
View
B+
Retailer 11
-
£544 GBP
View
B+
Retailer 12
-
£564 GBP
View
B+
Retailer 13
-
£714 GBP
View
B+
Retailer 14
-
£841 GBP
View
B+
Retailer 15
-
£873 GBP
View
Retailer 16
-
£1,026 GBP
View
Price last confirmed 14 days ago
B
Retailer 17
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£1,274 GBP
View
B
Retailer 18
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£1,556 GBP
View
B
Retailer 19
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£1,659 GBP
View
Most Expensive
B
Yadav Diamonds
13004996 · Nov 4
£1,692 GBP
$2,284 USD
View
19 more retailers have this diamond
Prices start from £162 GBPSave up to £1,530 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
1.18ct Radiant
£162 GBP