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Round|Lab Grown|IGI

1.73ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG652478204

Shape and cutting style on the report: Round brilliant

Certificate IGI LG652478204

Diamond specifications and retailer prices

From $625 AUD
$439 USD
As of October 28, 2026
Save $1,078 AUD (63%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,703 AUD 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG652478204 or 652478204. Listed at 15 retailers as of October 28, 2026, with prices from $625 to $1,703, a $1,078 spread on the same certified stone. MOH London lists it at $1,703. 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG652478204
Dimensions7.71 × 7.66 × 4.75 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.71 mm7.66 mm1.73 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG652478204
Side View
Table 58.0%Crown 34.7°Girdle: MediumPavilion 41.1°Culet: NoneDepth 61.9%

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 28
Current: $1,703 AUD|Low: $363 AUD|High: $1,716 AUD|Avg: $923 AUD|+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 8$363 AUD
Retailer 9$625 AUD
Retailer 7$629 AUD
Retailer 4$646 AUD
Retailer 2$664 AUD
Retailer 3$756 AUD
Retailer 11$845 AUD
Retailer 5$1,170 AUD
Retailer 6$1,189 AUD
Retailer 10$1,580 AUD
MOH London$1,703 AUD

38 data points across 11 retailers

15 retailers$625 AUD to $1,703 AUD

Retailer 1
-
$292 AUD
$205 USD
Price last confirmed 33 days ago
Retailer 2
-
$339 AUD
$238 USD
View
Price last confirmed 37 days ago
Retailer 3
-
$357 AUD
$251 USD
View
Price last confirmed 31 days ago
Retailer 4
-
$363 AUD
$255 USD
View
Price last confirmed 17 days ago
B+
Retailer 5
-
$625 AUD
$439 USD
View
Retailer 6
-
$629 AUD
£348 GBP
View
Price last confirmed 13 days ago
A
Retailer 7
-
$646 AUD
€432 EUR
View
A
Retailer 8
-
$664 AUD
£367 GBP
View
A
Retailer 9
-
$756 AUD
$531 USD
View
B+
Retailer 10
-
$845 AUD
$594 USD
View
Retailer 11
-
$1,166 AUD
$819 USD
View
Price last confirmed 32 days ago
B
Retailer 12
-
$1,170 AUD
$822 USD
View
Retailer 13
-
$1,189 AUD
$835 USD
View
Price last confirmed 8 days ago
B
Retailer 14
-
$1,580 AUD
$1,110 USD
View
Most Expensive
B
MOH London
LG652478204 · Oct 29
$1,703 AUD
£942 GBP
View
14 more retailers have this diamond
Prices start from $625 AUDSave up to $1,078 AUD

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
$625 AUD