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Heart|Lab Grown|IGI

1.58ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG625468018

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG625468018

Diamond specifications and retailer prices

From £646 GBP
$865 USD
As of October 30, 2026
Save £2,941 GBP (82%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £3,586 GBP at With Clarity · As of October 31, 2026
View at With Clarity

About this 1.58ct lab-grown heart diamond

This 1.58ct 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 LG625468018 or 625468018. Listed at 23 retailers as of October 30, 2026, with prices from £646 to £3,586, a £2,941 spread on the same certified stone. With Clarity lists it at £3,586. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.58
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG625468018
Dimensions7.29 × 8.09 × 4.77 mm
L/W Ratio1.11
Girdle conditionFaceted
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
7.29 mm8.09 mm1.58 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG625468018
Side View
Table 59.0%Crown 36.5°Girdle: THN-STKPavilion 41.1°Culet: NoneDepth 59.0%

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: Oct 30
Current: £1,152 GBP|Low: £646 GBP|High: £3,586 GBP|Avg: £1,440 GBP|-3.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
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Retailer 17
Retailer 18
Retailer 19
With Clarity
October 31, 2026
Retailer 8£646 GBP
Retailer 4£702 GBP
Retailer 15£749 GBP
Retailer 17£774 GBP
Retailer 14£849 GBP
Retailer 5£881 GBP
Retailer 19£922 GBP
Retailer 6£961 GBP
Retailer 10£1,073 GBP
Retailer 1£1,152 GBP
Retailer 16£1,199 GBP
Retailer 2£1,377 GBP
Retailer 12£1,571 GBP
Retailer 11£1,907 GBP
Retailer 3£2,106 GBP
Retailer 7£2,344 GBP
Retailer 9£2,599 GBP
Retailer 13£2,679 GBP
Retailer 18£2,823 GBP
With Clarity£3,586 GBP

24 data points across 20 retailers

23 retailers£646 GBP to £3,586 GBP

A
Cheapest Retailer
-
£646 GBP
$865 USD
A
Retailer 2
-
£702 GBP
$941 USD
View
A
Retailer 3
-
£749 GBP
$1,004 USD
View
Retailer 4
-
£766 GBP
$1,027 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
£774 GBP
$1,037 USD
View
Final sale: no returns
A
Retailer 6
-
£849 GBP
View
A
Retailer 7
-
£881 GBP
$1,180 USD
View
B+
Retailer 8
-
£922 GBP
$1,236 USD
View
B+
Retailer 9
-
£961 GBP
$1,287 USD
View
B+
Retailer 10
-
£1,073 GBP
$1,438 USD
View
B+
Retailer 11
-
£1,152 GBP
View
B+
Retailer 12
-
£1,199 GBP
€1,530 EUR
View
B+
Retailer 13
-
£1,377 GBP
ZAR 29,806 ZAR
View
B+
Retailer 14
-
£1,571 GBP
$2,105 USD
View
Retailer 15
-
£1,652 GBP
$2,214 USD
View
Price last confirmed 25 days ago
Retailer 16
-
£1,907 GBP
A$3,931 AUD
View
Price last confirmed 9 days ago
B
Retailer 17
-
£2,106 GBP
$2,822 USD
View
B
Retailer 18
-
£2,219 GBP
$2,973 USD
View
B
Retailer 19
-
£2,344 GBP
$3,141 USD
View
B
Retailer 20
-
£2,599 GBP
$3,482 USD
View
B
Retailer 21
-
£2,679 GBP
$3,590 USD
View
B
Retailer 22
-
£2,823 GBP
View
Most Expensive
B
With Clarity
625468018 · Oct 31
£3,586 GBP
$4,805 USD
View
22 more retailers have this diamond
Prices start from £646 GBPSave up to £2,941 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
1.58ct Heart
£646 GBP