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Heart|Lab Grown|IGI

1.73ct D FL Heart Lab Grown Diamond

EX • D/FL • IGI LG801694239

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG801694239

Diamond specifications and retailer prices

From €1,541 EUR
A$2,648 AUD
As of November 2, 2026
2 retailers carry this diamond
Most expensive: €5,075 EUR at Brilliant Earth · As of September 23, 2026
View at Brilliant Earth

About this 1.73ct lab-grown heart diamond

This 1.73ct 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 LG801694239 or 801694239. Listed at 2 retailers as of November 2, 2026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.73
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801694239
Dimensions7.80 × 8.22 × 4.80 mm
L/W Ratio1.05
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
7.80 mm8.22 mm1.73 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG801694239
Side View
Table 57.0%Crown 33.1°Girdle: MED-STKPavilion 39.6°Culet: NoneDepth 58.4%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 2
Current: €5,075 EUR|Low: €1,028 EUR|High: €7,358 EUR|Avg: €2,563 EUR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 26, 2026
Retailer 6€1,046 EUR
Retailer 7€1,047 EUR
Retailer 5€1,077 EUR
Retailer 9€1,284 EUR
Retailer 2€1,541 EUR
Retailer 3€1,658 EUR
Retailer 8€2,072 EUR
Retailer 4€3,638 EUR
Brilliant Earth€5,075 EUR
Retailer 10€7,358 EUR

8 data points across 10 retailers

2 retailers

B+
Cheapest Retailer
-
€1,541 EUR
A$2,648 AUD
Most Expensive
Brilliant Earth
20785900Y · Sep 23
€5,075 EUR
$5,670 USD
View
Price last confirmed 39 days ago
1 more retailer has this diamond
Prices start from €1,541 EUR

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.

B+
1.73ct Heart
€1,541 EUR