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Oval|Lab Grown|IGI

1.73ct J SI1 Oval Lab Grown Diamond

ID • J/SI1 • IGI LG445038831

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG445038831

Diamond specifications and retailer prices

From $950 USD
As of October 31, 2026
Save $3,825 USD (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,775 USD at MOH London · As of November 1, 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 LG445038831 or 445038831. Listed at 12 retailers as of October 31, 2026, with prices from $950 to $4,775, a $3,825 spread on the same certified stone. MOH London lists it at $4,775. 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
SymmetryVery Good
FluorescenceNone
Crown angle36.6°
Pavilion angle41.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445038831
Dimensions9.35 × 6.90 × 4.35 mm
L/W Ratio1.36
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.35 mm6.90 mm1.73 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG445038831
Side View
Table 60.0%Crown 36.6°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 63.0%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: $4,775 USD|Low: $950 USD|High: $4,840 USD|Avg: $2,208 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 1, 2026
Retailer 7$950 USD
Retailer 8$1,281 USD
Retailer 12$1,394 USD
Retailer 13$1,435 USD
Retailer 9$1,486 USD
Retailer 14$1,486 USD
Retailer 3$1,660 USD
Retailer 2$2,034 USD
Retailer 5$2,062 USD
Retailer 10$2,353 USD
Retailer 4$2,770 USD
Retailer 11$2,786 USD
Retailer 6$4,256 USD
MOH London$4,775 USD

38 data points across 14 retailers

12 retailers$950 USD to $4,775 USD

A
Cheapest Retailer
-
$950 USD
A
Retailer 2
-
$1,281 USD
View
B+
Retailer 3
-
$1,394 USD
View
B+
Retailer 4
-
$1,435 USD
View
Final sale: no returns
Retailer 5
-
$1,486 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
$1,486 USD
View
B+
Retailer 7
-
$1,660 USD
View
B+
Retailer 8
-
$2,034 USD
£1,601 GBP
View
B+
Retailer 9
-
$2,353 USD
View
B
Retailer 10
-
$2,770 USD
View
B
Retailer 11
-
$2,786 USD
View
Most Expensive
B
MOH London
LG445038831 · Nov 1
$4,775 USD
£3,760 GBP
View
11 more retailers have this diamond
Prices start from $950 USDSave up to $3,825 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
$950 USD