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Radiant|Lab Grown|IGI

1.18ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG766683649

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

Certificate IGI LG766683649

Diamond specifications and retailer prices

From £153 GBP
As of November 4, 2026
Save £1,307 GBP (90%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,459 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore 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 LG766683649 or 766683649. Listed at 20 retailers as of November 4, 2026, with prices from £153 to £1,459, a £1,307 spread on the same certified stone. Do Amore Diamonds lists it at £1,459. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.2°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG766683649
Dimensions7.73 × 5.36 × 3.42 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
7.73 mm5.36 mm1.18 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG766683649
Side View
Table 66.0%Crown 38.2°Girdle: MediumPavilion 34.1°Culet: NoneDepth 63.8%

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: £1,459 GBP|Low: £153 GBP|High: £1,459 GBP|Avg: £582 GBP
Do Amore Diamonds
Retailer 2
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November 4, 2026
Retailer 20£153 GBP
Retailer 8£170 GBP
Retailer 19£176 GBP
Retailer 3£189 GBP
Retailer 10£325 GBP
Retailer 15£359 GBP
Retailer 2£384 GBP
Retailer 7£419 GBP
Retailer 6£424 GBP
Retailer 13£509 GBP
Retailer 14£539 GBP
Retailer 4£670 GBP
Retailer 9£796 GBP
Retailer 5£813 GBP
Retailer 11£827 GBP
Retailer 16£835 GBP
Retailer 12£868 GBP
Retailer 18£1,011 GBP
Retailer 17£1,244 GBP
Do Amore Diamonds£1,459 GBP

43 data points across 20 retailers

20 retailers£153 GBP to £1,459 GBP

A
Cheapest Retailer
-
£153 GBP
A
Retailer 2
-
£170 GBP
View
Final sale: no returns
A
Retailer 3
-
£176 GBP
View
A
Retailer 4
-
£189 GBP
View
A
Retailer 5
-
£325 GBP
View
A
Retailer 6
-
£359 GBP
View
A
Retailer 7
-
£384 GBP
View
A
Retailer 8
-
£419 GBP
View
A
Retailer 9
-
£424 GBP
View
A
Retailer 10
-
£509 GBP
View
B+
Retailer 11
-
£539 GBP
View
B+
Retailer 12
-
£670 GBP
View
B+
Retailer 13
-
£796 GBP
View
B+
Retailer 14
-
£813 GBP
View
B+
Retailer 15
-
£827 GBP
View
B+
Retailer 16
-
£835 GBP
View
Retailer 17
-
£868 GBP
View
Price last confirmed 27 days ago
Retailer 18
-
£1,011 GBP
View
Price last confirmed 14 days ago
B
Retailer 19
-
£1,244 GBP
View
Most Expensive
B
Do Amore Diamonds
27-45B13C94E · Nov 4
£1,459 GBP
$1,970 USD
View
19 more retailers have this diamond
Prices start from £153 GBPSave up to £1,307 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
£153 GBP