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Oval|Lab Grown|IGI

1.50ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG459194282

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG459194282

Diamond specifications and retailer prices

From $1,665 AUD
$1,170 USD
As of October 29, 2026
Save $2,428 AUD (59%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,412 AUD at NZ Jewellers · As of October 28, 2026
View at NZ Jewellers

About this 1.5ct lab-grown oval diamond

This 1.5ct lab-grown oval sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG459194282 or 459194282. Listed at 12 retailers as of October 29, 2026, with a 146% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.50
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG459194282
Dimensions9.31 × 6.41 × 3.86 mm
L/W Ratio1.45
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
9.31 mm6.41 mm1.50 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG459194282
Side View
Table 60.0%Crown 36.1°Girdle: MED-THKPavilion 39.7°Culet: NoneDepth 60.2%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $4,093 AUD|Low: $1,665 AUD|High: $8,355 AUD|Avg: $3,754 AUD|-0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 4$1,665 AUD
Retailer 7$1,869 AUD
Retailer 6$2,786 AUD
Retailer 8$3,124 AUD
Retailer 1$4,093 AUD
Retailer 5$4,532 AUD
Retailer 3$4,978 AUD
Retailer 2$8,290 AUD

40 data points across 8 retailers

12 retailers$1,665 AUD to $4,093 AUD

B
Cheapest Retailer
-
$1,665 AUD
$1,170 USD
B
Retailer 2
-
$2,490 AUD
$1,749 USD
View
B
Retailer 3
-
$2,707 AUD
$1,902 USD
View
B
Retailer 4
-
$2,786 AUD
$1,957 USD
View
Final sale: no returns
Retailer 5
-
$2,887 AUD
$2,028 USD
View
Price last confirmed 17 days ago
B
Retailer 6
-
$2,887 AUD
$2,028 USD
View
B
Retailer 7
-
$3,124 AUD
$2,195 USD
View
B
Retailer 8
-
$4,093 AUD
£2,264 GBP
View
Retailer 9
-
$4,532 AUD
$3,184 USD
View
Price under review
Retailer 10
-
$4,978 AUD
$3,497 USD
View
Price under review
Most Expensive
NZ Jewellers
5cc43fba-9e61-4c48-8d57-83016d3908df · Oct 28
$5,412 AUD
$3,802 USD
View
Price under review
10 more retailers have this diamond
Prices start from $1,665 AUDSave up to $2,428 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.

B
1.50ct Oval
$1,665 AUD