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Heart|Lab Grown|IGI

1.24ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG818681474

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818681474

Diamond specifications and retailer prices

From £194 GBP
As of November 4, 2026
Save £1,532 GBP (89%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,726 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 1.24ct lab-grown heart diamond

This 1.24ct lab-grown heart 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 LG818681474 or 818681474. Listed at 13 retailers as of November 4, 2026, with prices from £194 to £1,726, a £1,532 spread on the same certified stone. Do Amore Diamonds lists it at £1,726. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.24
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818681474
Dimensions6.93 × 7.24 × 4.22 mm
L/W Ratio1.04
Girdle conditionFaceted
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
6.93 mm7.24 mm1.24 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818681474
Side View
Table 63.0%Crown 37°Girdle: STK-THKPavilion 39.3°Culet: NoneDepth 58.3%

Caratlytics Score

How it works →
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: £1,726 GBP|Low: £190 GBP|High: £1,756 GBP|Avg: £788 GBP|-1.7%
Do Amore Diamonds
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
November 5, 2026
Retailer 9£194 GBP
Retailer 13£225 GBP
Retailer 14£378 GBP
Retailer 11£401 GBP
Retailer 8£442 GBP
Retailer 3£478 GBP
Retailer 7£652 GBP
Retailer 10£739 GBP
Retailer 12£854 GBP
Retailer 6£997 GBP
Retailer 2£1,061 GBP
Retailer 4£1,292 GBP
Retailer 5£1,496 GBP
Do Amore Diamonds£1,726 GBP

26 data points across 14 retailers

13 retailers£194 GBP to £1,726 GBP

A
Cheapest Retailer
-
£194 GBP
A
Retailer 2
-
£225 GBP
View
A
Retailer 3
-
£378 GBP
View
A
Retailer 4
-
£401 GBP
View
A
Retailer 5
-
£442 GBP
View
A
Retailer 6
-
£478 GBP
View
B+
Retailer 7
-
£652 GBP
View
B+
Retailer 8
-
£739 GBP
View
B+
Retailer 9
-
£854 GBP
View
B+
Retailer 10
-
£1,061 GBP
View
Retailer 11
-
£1,292 GBP
View
Price last confirmed 28 days ago
B
Retailer 12
-
£1,496 GBP
View
Most Expensive
B
Do Amore Diamonds
27-F73DADB73 · Nov 4
£1,726 GBP
$2,330 USD
View
12 more retailers have this diamond
Prices start from £194 GBPSave up to £1,532 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
1.24ct Heart
£194 GBP