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Oval|Lab Grown|IGI

1.71ct J SI2 Oval Lab Grown Diamond

ID • J/SI2 • IGI LG451058603

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG451058603

Diamond specifications and retailer prices

From $1,196 AUD
$840 USD
As of October 29, 2026
Save $4,986 AUD (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,181 AUD at MOH London · As of October 27, 2026
View at MOH London

About this 1.71ct lab-grown oval diamond

This 1.71ct lab-grown oval sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451058603 or 451058603. Listed at 10 retailers as of October 27, 2026, with prices from $1,196 to $6,181, a $4,986 spread on the same certified stone. MOH London lists it at $6,181. 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

1.71
Carat
J
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451058603
Dimensions9.22 × 6.78 × 4.28 mm
L/W Ratio1.36
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.22 mm6.78 mm1.71 ctJ / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451058603
Side View
Table 59.5%Crown 35.8°Girdle: STK-THKPavilion 41.4°Culet: NoneDepth 63.1%

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 29
Current: $6,181 AUD|Low: $1,196 AUD|High: $6,248 AUD|Avg: $2,909 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$1,196 AUD
Retailer 2$1,657 AUD
Retailer 8$1,802 AUD
Retailer 9$1,854 AUD
Retailer 5$1,922 AUD
Retailer 11$2,743 AUD
Retailer 6$3,052 AUD
Retailer 7$3,602 AUD
Retailer 10$3,787 AUD
Retailer 3$4,301 AUD
MOH London$6,181 AUD

14 data points across 11 retailers

10 retailers$1,196 AUD to $6,181 AUD

A
Cheapest Retailer
-
$1,196 AUD
$840 USD
B+
Retailer 2
-
$1,657 AUD
$1,164 USD
View
B+
Retailer 3
-
$1,802 AUD
$1,266 USD
View
B+
Retailer 4
-
$1,854 AUD
$1,302 USD
View
Final sale: no returns
Retailer 5
-
$1,922 AUD
$1,350 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
$1,922 AUD
$1,350 USD
View
B
Retailer 7
-
$3,052 AUD
$2,144 USD
View
B
Retailer 8
-
$3,602 AUD
$2,530 USD
View
B
Retailer 9
-
$3,787 AUD
$2,660 USD
View
Most Expensive
B
MOH London
LG451058603 · Oct 27
$6,181 AUD
£3,419 GBP
View
9 more retailers have this diamond
Prices start from $1,196 AUDSave up to $4,986 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
1.71ct Oval
$1,196 AUD