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Heart|Lab Grown|IGI

1.54ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG844663945

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG844663945

Diamond specifications and retailer prices

From £398 GBP
As of November 1, 2026
Save £2,185 GBP (85%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,583 GBP at Novita Diamonds · As of October 31, 2026
View at Novita Diamonds

About this 1.54ct lab-grown heart diamond

This 1.54ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG844663945 or 844663945. Listed at 11 retailers as of October 31, 2026, with prices from £398 to £2,583, a £2,185 spread on the same certified stone. Novita Diamonds lists it at £2,583. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844663945
Dimensions8.03 × 7.17 × 4.81 mm
L/W Ratio1.12
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
8.03 mm7.17 mm1.54 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844663945
Side View
Table 57.0%Crown 35.9°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 59.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £2,583 GBP|Low: £398 GBP|High: £2,583 GBP|Avg: £1,152 GBP
Novita Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 4£398 GBP
Retailer 7£489 GBP
Retailer 10£546 GBP
Retailer 3£634 GBP
Retailer 6£876 GBP
Retailer 11£910 GBP
Retailer 8£999 GBP
Retailer 2£1,469 GBP
Retailer 5£2,090 GBP
Retailer 9£2,440 GBP
Novita Diamonds£2,583 GBP

15 data points across 11 retailers

11 retailers£398 GBP to £2,583 GBP

A
Cheapest Retailer
-
£398 GBP
A
Retailer 2
-
£489 GBP
$655 USD
View
A
Retailer 3
-
£546 GBP
$731 USD
View
A
Retailer 4
-
£634 GBP
$849 USD
View
A
Retailer 5
-
£876 GBP
A$1,805 AUD
View
B+
Retailer 6
-
£910 GBP
$1,220 USD
View
B+
Retailer 7
-
£999 GBP
$1,339 USD
View
B+
Retailer 8
-
£1,469 GBP
View
B
Retailer 9
-
£2,090 GBP
$2,800 USD
View
B
Retailer 10
-
£2,440 GBP
$3,270 USD
View
Most Expensive
B
Novita Diamonds
cert_844663945 · Oct 31
£2,583 GBP
A$5,324 AUD
View
10 more retailers have this diamond
Prices start from £398 GBPSave up to £2,185 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
1.54ct Heart
£398 GBP