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Oval|Lab Grown|IGI

1.73ct J SI1 Oval Lab Grown Diamond

ID • J/SI1 • IGI LG445038588

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG445038588

Diamond specifications and retailer prices

From $860 USD
As of October 31, 2026
Save $4,630 USD (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,490 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 LG445038588 or 445038588. Listed at 11 retailers as of October 31, 2026, with prices from $860 to $5,490, a $4,630 spread on the same certified stone. MOH London lists it at $5,490. 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
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445038588
Dimensions9.38 × 6.80 × 4.26 mm
L/W Ratio1.38
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.38 mm6.80 mm1.73 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG445038588
Side View
Table 57.5%Crown 36.6°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.6%

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 31
Current: $5,490 USD|Low: $860 USD|High: $5,564 USD|Avg: $2,729 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
November 1, 2026
Retailer 7$860 USD
Retailer 6$1,657 USD
Retailer 11$1,803 USD
Retailer 5$1,853 USD
Retailer 12$1,855 USD
Retailer 8$1,922 USD
Retailer 13$2,090 USD
Retailer 3$2,580 USD
Retailer 9$3,022 USD
Retailer 2$3,315 USD
Retailer 10$3,603 USD
MOH London$5,490 USD
Retailer 4$5,504 USD

18 data points across 13 retailers

11 retailers$860 USD to $5,490 USD

A
Cheapest Retailer
-
$860 USD
B+
Retailer 2
-
$1,657 USD
View
B+
Retailer 3
-
$1,803 USD
View
B+
Retailer 4
-
$1,855 USD
View
Final sale: no returns
Retailer 5
-
$1,922 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
$1,922 USD
View
B+
Retailer 7
-
$2,090 USD
View
B
Retailer 8
-
$3,022 USD
View
B
Retailer 9
-
$3,315 USD
View
B
Retailer 10
-
$3,603 USD
View
Most Expensive
B
MOH London
LG445038588 · Nov 1
$5,490 USD
£4,323 GBP
View
10 more retailers have this diamond
Prices start from $860 USDSave up to $4,630 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
$860 USD