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Round|Lab Grown|IGI

1.73ct I SI2 Round Lab Grown Diamond

ID • I/SI2 • IGI LG494174661

Shape and cutting style on the report: Round brilliant

Certificate IGI LG494174661

Diamond specifications and retailer prices

From €859 EUR
$960 USD
As of October 30, 2026
Save €3,349 EUR (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €4,208 EUR at MOH London · As of October 29, 2026
View at MOH London

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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG494174661 or 494174661. Listed at 10 retailers as of October 29, 2026, with prices from €859 to €4,208, a €3,349 spread on the same certified stone. MOH London lists it at €4,208. 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
I
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG494174661
Dimensions7.67 × 7.73 × 4.72 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.67 mm7.73 mm1.73 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG494174661
Side View
Table 59.0%Crown 33.3°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €4,208 EUR|Low: €859 EUR|High: €4,242 EUR|Avg: €2,140 EUR|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 2€859 EUR
Retailer 4€1,264 EUR
Retailer 7€1,375 EUR
Retailer 9€1,415 EUR
Retailer 5€1,466 EUR
Retailer 11€2,006 EUR
Retailer 6€2,313 EUR
Retailer 10€2,660 EUR
Retailer 8€2,747 EUR
Retailer 3€3,281 EUR
MOH London€4,208 EUR

16 data points across 11 retailers

10 retailers€859 EUR to €4,208 EUR

A
Cheapest Retailer
-
€859 EUR
$960 USD
B+
Retailer 2
-
€1,264 EUR
$1,412 USD
View
B+
Retailer 3
-
€1,375 EUR
$1,536 USD
View
B+
Retailer 4
-
€1,415 EUR
$1,581 USD
View
Final sale: no returns
Retailer 5
-
€1,466 EUR
$1,638 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
€1,466 EUR
$1,638 USD
View
B
Retailer 7
-
€2,313 EUR
$2,584 USD
View
B
Retailer 8
-
€2,660 EUR
$2,972 USD
View
B
Retailer 9
-
€2,747 EUR
$3,069 USD
View
Most Expensive
B
MOH London
LG494174661 · Oct 29
€4,208 EUR
£3,702 GBP
View
9 more retailers have this diamond
Prices start from €859 EURSave up to €3,349 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
€859 EUR