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Heart|Lab Grown|IGI

1.54ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG841678790

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG841678790

Diamond specifications and retailer prices

From £275 GBP
$368 USD
As of October 30, 2026
Save £2,166 GBP (89%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £2,440 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore 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 LG841678790 or 841678790. Listed at 16 retailers as of October 30, 2026, with prices from £275 to £2,440, a £2,166 spread on the same certified stone. Do Amore Diamonds lists it at £2,440. 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 angle33.2°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841678790
Dimensions7.54 × 7.71 × 4.65 mm
L/W Ratio1.02
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
7.54 mm7.71 mm1.54 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841678790
Side View
Table 59.0%Crown 33.2°Girdle: MED-THKPavilion 40.6°Culet: NoneDepth 60.3%

Caratlytics Score

How it works →
A+
Exceptional
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: Oct 30
Current: £2,440 GBP|Low: £275 GBP|High: £2,493 GBP|Avg: £999 GBP|+0.3%
Do Amore Diamonds
Retailer 2
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Retailer 12
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Retailer 17
November 1, 2026
Retailer 15£275 GBP
Retailer 5£319 GBP
Retailer 2£398 GBP
Retailer 16£463 GBP
Retailer 14£489 GBP
Retailer 3£546 GBP
Retailer 10£614 GBP
Retailer 7£634 GBP
Retailer 12£876 GBP
Retailer 17£999 GBP
Retailer 4£1,209 GBP
Retailer 8£1,408 GBP
Retailer 13£1,478 GBP
Retailer 9£1,743 GBP
Retailer 11£2,090 GBP
Retailer 6£2,097 GBP
Do Amore Diamonds£2,440 GBP

25 data points across 17 retailers

16 retailers£275 GBP to £2,440 GBP

A+
Cheapest Retailer
-
£275 GBP
$368 USD
A
Retailer 2
-
£319 GBP
$427 USD
View
A
Retailer 3
-
£398 GBP
View
A
Retailer 4
-
£463 GBP
$621 USD
View
A
Retailer 5
-
£489 GBP
$655 USD
View
A
Retailer 6
-
£546 GBP
$731 USD
View
A
Retailer 7
-
£614 GBP
€783 EUR
View
A
Retailer 8
-
£634 GBP
$849 USD
View
A
Retailer 9
-
£876 GBP
A$1,805 AUD
View
B+
Retailer 10
-
£999 GBP
$1,339 USD
View
B+
Retailer 11
-
£1,209 GBP
$1,620 USD
View
Retailer 12
-
£1,408 GBP
$1,886 USD
View
Price last confirmed 16 days ago
B+
Retailer 13
-
£1,478 GBP
View
B
Retailer 14
-
£2,090 GBP
$2,800 USD
View
B
Retailer 15
-
£2,097 GBP
$2,810 USD
View
Most Expensive
B
Do Amore Diamonds
27-99015717E · Oct 31
£2,440 GBP
$3,270 USD
View
15 more retailers have this diamond
Prices start from £275 GBPSave up to £2,166 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
£275 GBP