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Oval|Lab Grown|IGI

1.73ct J SI1 Oval Lab Grown Diamond

ID • J/SI1 • IGI LG450028033

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG450028033

Diamond specifications and retailer prices

From €797 EUR
$890 USD
As of October 29, 2026
8 retailers carry this diamond
Most expensive: €4,973 EUR at MOH London · As of October 6, 2026
View at MOH London

About this 1.73ct lab-grown oval diamond

This 1.73ct lab-grown oval sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG450028033 or 450028033. Listed at 8 retailers as of October 29, 2026. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.73
Carat
J
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG450028033
Dimensions9.21 × 6.91 × 4.29 mm
L/W Ratio1.33
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD). Type IIa
Top View
9.21 mm6.91 mm1.73 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG450028033
Side View
Table 58.0%Crown 36.3°Girdle: STK-THKPavilion 40.6°Culet: NoneDepth 62.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: €4,973 EUR|Low: €797 EUR|High: €4,973 EUR|Avg: €2,498 EUR|+1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 6, 2026
Retailer 5€797 EUR
Retailer 10€1,659 EUR
Retailer 4€1,660 EUR
Retailer 2€1,720 EUR
Retailer 6€1,871 EUR
Retailer 8€2,309 EUR
Retailer 3€2,705 EUR
Retailer 7€3,043 EUR
Retailer 9€4,927 EUR
MOH London€4,973 EUR

7 data points across 10 retailers

8 retailers

A
Cheapest Retailer
-
€797 EUR
$890 USD
Retailer 2
-
€1,424 EUR
$1,591 USD
View
Price last confirmed 31 days ago
Retailer 3
-
€1,614 EUR
$1,803 USD
View
Price last confirmed 36 days ago
Retailer 4
-
€1,720 EUR
$1,922 USD
View
Price last confirmed 30 days ago
Retailer 5
-
€2,705 EUR
$3,022 USD
View
Price last confirmed 28 days ago
Retailer 6
-
€3,043 EUR
$3,400 USD
View
Price last confirmed 25 days ago
Retailer 7
-
€3,225 EUR
$3,603 USD
View
Price last confirmed 32 days ago
Most Expensive
MOH London
LG450028033 · Oct 6
€4,973 EUR
£4,375 GBP
View
Price last confirmed 27 days ago
7 more retailers have this diamond
Prices start from €797 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 Oval
€797 EUR