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Heart|Lab Grown|IGI

1.58ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG830620135

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG830620135

Diamond specifications and retailer prices

From £510 GBP
$684 USD
As of October 30, 2026
Save £2,779 GBP (84%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £3,290 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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG830620135 or 830620135. Listed at 14 retailers as of October 30, 2026, with prices from £510 to £3,290, a £2,779 spread on the same certified stone. With Clarity lists it at £3,290. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.4°
Pavilion angle36.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830620135
Dimensions7.20 × 8.07 × 4.56 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
7.20 mm8.07 mm1.58 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830620135
Side View
Table 57.0%Crown 38.4°Girdle: MED-STKPavilion 36.1°Culet: NoneDepth 56.5%

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: £724 GBP|Low: £510 GBP|High: £3,776 GBP|Avg: £1,449 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
With Clarity
October 31, 2026
Retailer 9£510 GBP
Retailer 2£592 GBP
Retailer 3£646 GBP
Retailer 10£671 GBP
Retailer 1£724 GBP
Retailer 6£775 GBP
Retailer 13£914 GBP
Retailer 11£948 GBP
Retailer 8£964 GBP
Retailer 5£1,951 GBP
Retailer 12£2,042 GBP
Retailer 4£2,318 GBP
Retailer 7£2,821 GBP
With Clarity£3,290 GBP

3 data points across 14 retailers

14 retailers£510 GBP to £3,290 GBP

A
Cheapest Retailer
-
£510 GBP
$684 USD
A
Retailer 2
-
£592 GBP
$793 USD
View
A
Retailer 3
-
£646 GBP
$865 USD
View
Final sale: no returns
A
Retailer 4
-
£671 GBP
View
A
Retailer 5
-
£724 GBP
$970 USD
View
A
Retailer 6
-
£775 GBP
$1,038 USD
View
B+
Retailer 7
-
£914 GBP
$1,225 USD
View
B+
Retailer 8
-
£948 GBP
View
B+
Retailer 9
-
£964 GBP
$1,291 USD
View
B
Retailer 10
-
£1,951 GBP
$2,614 USD
View
B
Retailer 11
-
£2,042 GBP
$2,736 USD
View
B
Retailer 12
-
£2,318 GBP
SGD 4,197 SGD
View
B
Retailer 13
-
£2,821 GBP
$3,780 USD
View
Most Expensive
B
With Clarity
830620135 · Oct 31
£3,290 GBP
$4,408 USD
View
13 more retailers have this diamond
Prices start from £510 GBPSave up to £2,779 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
£510 GBP