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Oval|Lab Grown|IGI

1.73ct I SI2 Oval Lab Grown Diamond

ID • I/SI2 • IGI LG451056634

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG451056634

Diamond specifications and retailer prices

From $1,367 AUD
$960 USD
As of October 29, 2026
Save $5,440 AUD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,807 AUD at MOH London · As of October 27, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451056634 or 451056634. Listed at 10 retailers as of October 27, 2026, with prices from $1,367 to $6,807, a $5,440 spread on the same certified stone. MOH London lists it at $6,807. 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 angle33.8°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451056634
Dimensions9.30 × 6.94 × 4.26 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.30 mm6.94 mm1.73 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451056634
Side View
Table 60.5%Crown 33.8°Girdle: MED-THKPavilion 41.2°Culet: NoneDepth 61.4%

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 29
Current: $6,807 AUD|Low: $1,367 AUD|High: $6,890 AUD|Avg: $3,174 AUD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 25, 2026
Retailer 4$1,367 AUD
Retailer 2$1,824 AUD
Retailer 8$1,984 AUD
Retailer 9$2,043 AUD
Retailer 5$2,115 AUD
Retailer 11$2,935 AUD
Retailer 6$3,350 AUD
Retailer 10$3,943 AUD
Retailer 7$3,966 AUD
Retailer 3$4,736 AUD
MOH London$6,807 AUD

15 data points across 11 retailers

10 retailers$1,367 AUD to $6,807 AUD

A
Cheapest Retailer
-
$1,367 AUD
$960 USD
A
Retailer 2
-
$1,824 AUD
$1,281 USD
View
A
Retailer 3
-
$1,984 AUD
$1,394 USD
View
A
Retailer 4
-
$2,043 AUD
$1,435 USD
View
Final sale: no returns
Retailer 5
-
$2,115 AUD
$1,486 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
$2,115 AUD
$1,486 USD
View
B
Retailer 7
-
$3,350 AUD
$2,353 USD
View
B
Retailer 8
-
$3,943 AUD
$2,770 USD
View
B
Retailer 9
-
$3,966 AUD
$2,786 USD
View
Most Expensive
B
MOH London
LG451056634 · Oct 27
$6,807 AUD
£3,765 GBP
View
9 more retailers have this diamond
Prices start from $1,367 AUDSave up to $5,440 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 Oval
$1,367 AUD