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Round|Lab Grown|IGI

1.73ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG813651518

Shape and cutting style on the report: Round brilliant

Certificate IGI LG813651518

Diamond specifications and retailer prices

From €508 EUR
$567 USD
As of October 29, 2026
Save €4,639 EUR (90%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €5,147 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.73ct lab-grown round diamond

This 1.73ct lab-grown round 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 LG813651518 or 813651518. Listed at 21 retailers as of October 29, 2026, with prices from €508 to €5,147, a €4,639 spread on the same certified stone. Brilliant Earth lists it at €5,147. 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
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813651518
Dimensions7.66 × 7.71 × 4.74 mm
L/W Ratio1.01
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
7.66 mm7.71 mm1.73 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813651518
Side View
Table 55.0%Crown 34°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.6%

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 29
Current: €5,147 EUR|Low: €487 EUR|High: €5,147 EUR|Avg: €1,570 EUR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 15
Retailer 16
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Retailer 19
Retailer 20
November 1, 2026
Retailer 20€508 EUR
Retailer 12€567 EUR
Retailer 4€568 EUR
Retailer 5€629 EUR
Retailer 16€747 EUR
Retailer 7€832 EUR
Retailer 8€906 EUR
Retailer 14€1,012 EUR
Retailer 2€1,085 EUR
Retailer 15€1,194 EUR
Retailer 9€1,257 EUR
Retailer 19€1,562 EUR
Retailer 18€1,647 EUR
Retailer 6€1,828 EUR
Retailer 11€2,102 EUR
Retailer 3€2,348 EUR
Retailer 17€2,645 EUR
Retailer 13€2,752 EUR
Retailer 10€4,511 EUR
Brilliant Earth€5,147 EUR

39 data points across 20 retailers

21 retailers€508 EUR to €5,147 EUR

A
Cheapest Retailer
-
€508 EUR
$567 USD
A
Retailer 2
-
€567 EUR
$634 USD
View
Final sale: no returns
A
Retailer 3
-
€568 EUR
$635 USD
View
A
Retailer 4
-
€629 EUR
$703 USD
View
Retailer 5
-
€629 EUR
$703 USD
View
Price last confirmed 15 days ago
A
Retailer 6
-
€747 EUR
$835 USD
View
A
Retailer 7
-
€832 EUR
$930 USD
View
A
Retailer 8
-
€906 EUR
$1,012 USD
View
A
Retailer 9
-
€1,012 EUR
View
B+
Retailer 10
-
€1,085 EUR
£955 GBP
View
B+
Retailer 11
-
€1,194 EUR
ZAR 21,552 ZAR
View
B+
Retailer 12
-
€1,257 EUR
$1,404 USD
View
B+
Retailer 13
-
€1,562 EUR
$1,745 USD
View
B+
Retailer 14
-
€1,647 EUR
$1,840 USD
View
B+
Retailer 15
-
€1,828 EUR
$2,042 USD
View
B
Retailer 16
-
€2,102 EUR
$2,349 USD
View
B
Retailer 17
-
€2,348 EUR
$2,624 USD
View
Retailer 18
-
€2,645 EUR
$2,955 USD
View
Price last confirmed 14 days ago
B
Retailer 19
-
€2,752 EUR
£2,421 GBP
View
B
Retailer 20
-
€4,511 EUR
$5,040 USD
View
Most Expensive
B
Brilliant Earth
21803400A · Oct 31
€5,147 EUR
$5,750 USD
View
20 more retailers have this diamond
Prices start from €508 EURSave up to €4,639 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.

A
1.73ct Round
€508 EUR