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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 $960 USD
As of October 29, 2026
Save $3,822 USD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,782 USD 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 $960 to $4,782, a $3,822 spread on the same certified stone. MOH London lists it at $4,782. 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
Color
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: $4,782 USD|Low: $960 USD|High: $4,840 USD|Avg: $2,229 USD|+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$960 USD
Retailer 2$1,281 USD
Retailer 8$1,394 USD
Retailer 9$1,435 USD
Retailer 5$1,486 USD
Retailer 11$2,062 USD
Retailer 6$2,353 USD
Retailer 10$2,770 USD
Retailer 7$2,786 USD
Retailer 3$3,327 USD
MOH London$4,782 USD

15 data points across 11 retailers

10 retailers$960 USD to $4,782 USD

A
Cheapest Retailer
-
$960 USD
A
Retailer 2
-
$1,281 USD
View
A
Retailer 3
-
$1,394 USD
View
A
Retailer 4
-
$1,435 USD
View
Final sale: no returns
Retailer 5
-
$1,486 USD
View
Price last confirmed 17 days ago
B+
Retailer 6
-
$1,486 USD
View
B
Retailer 7
-
$2,353 USD
View
B
Retailer 8
-
$2,770 USD
View
B
Retailer 9
-
$2,786 USD
View
Most Expensive
B
MOH London
LG451056634 · Oct 27
$4,782 USD
£3,765 GBP
View
9 more retailers have this diamond
Prices start from $960 USDSave up to $3,822 USD

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
$960 USD