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Heart|Lab Grown|IGI

1.72ct D FL Heart Lab Grown Diamond

VG • D/FL • IGI LG818653729

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818653729

Diamond specifications and retailer prices

From £496 GBP
$665 USD
As of October 30, 2026
Save £3,915 GBP (89%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £4,411 GBP at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 1.72ct lab-grown heart diamond

This 1.72ct 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 very-good cut grade and certified by IGI LG818653729 or 818653729. Listed at 10 retailers as of October 30, 2026, with prices from £496 to £4,411, a £3,915 spread on the same certified stone. Do Amore Diamonds lists it at £4,411. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.72
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818653729
Dimensions8.30 × 7.32 × 4.82 mm
L/W Ratio1.13
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
8.30 mm7.32 mm1.72 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818653729
Side View
Table 55.0%Crown 34.1°Girdle: MED-THKPavilion 38.7°Culet: NoneDepth 58.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £4,411 GBP|Low: £496 GBP|High: £4,612 GBP|Avg: £1,715 GBP|-4.4%
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
October 30, 2026
Retailer 13£496 GBP
Retailer 10£540 GBP
Retailer 6£585 GBP
Retailer 12£772 GBP
Retailer 14£938 GBP
Retailer 7£940 GBP
Retailer 5£1,113 GBP
Retailer 3£1,244 GBP
Retailer 9£1,427 GBP
Retailer 11£1,787 GBP
Retailer 8£2,499 GBP
Retailer 4£2,821 GBP
Retailer 2£3,023 GBP
Do Amore Diamonds£4,411 GBP

17 data points across 14 retailers

10 retailers£496 GBP to £4,411 GBP

A
Cheapest Retailer
-
£496 GBP
$665 USD
A
Retailer 2
-
£540 GBP
$724 USD
View
A
Retailer 3
-
£772 GBP
$1,035 USD
View
A
Retailer 4
-
£938 GBP
$1,257 USD
View
B+
Retailer 5
-
£940 GBP
$1,260 USD
View
B+
Retailer 6
-
£1,427 GBP
$1,912 USD
View
B+
Retailer 7
-
£1,787 GBP
$2,394 USD
View
B
Retailer 8
-
£2,499 GBP
View
B
Retailer 9
-
£3,023 GBP
$4,050 USD
View
Most Expensive
B
Do Amore Diamonds
27-B04C7D7E2 · Oct 30
£4,411 GBP
$5,910 USD
View
9 more retailers have this diamond
Prices start from £496 GBPSave up to £3,915 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
1.72ct Heart
£496 GBP