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Oval|Lab Grown|IGI

1.57ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG739537722

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG739537722

Diamond specifications and retailer prices

From $434 AUD
$305 USD
As of October 29, 2026
Save $2,029 AUD (82%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,463 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.57ct lab-grown oval diamond

This 1.57ct lab-grown oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG739537722 or 739537722. Listed at 16 retailers as of October 29, 2026, with prices from $434 to $2,463, a $2,029 spread on the same certified stone. Brilliant Earth lists it at $2,463. 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

1.57
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG739537722
Dimensions9.30 × 6.62 × 4.07 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.30 mm6.62 mm1.57 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG739537722
Side View
Table 62.0%Crown 33.3°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.5%

Caratlytics Score

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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: $2,463 AUD|Low: $417 AUD|High: $2,463 AUD|Avg: $1,057 AUD
Brilliant Earth
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
Retailer 15
October 31, 2026
Retailer 13$434 AUD
Retailer 6$487 AUD
Retailer 11$504 AUD
Retailer 10$540 AUD
Retailer 12$540 AUD
Retailer 8$602 AUD
Retailer 4$804 AUD
Retailer 5$878 AUD
Retailer 2$958 AUD
Retailer 7$1,018 AUD
Retailer 14$1,381 AUD
Retailer 3$1,656 AUD
Retailer 15$1,733 AUD
Retailer 9$2,171 AUD
Brilliant Earth$2,463 AUD

40 data points across 15 retailers

16 retailers$434 AUD to $2,463 AUD

A
Cheapest Retailer
-
$434 AUD
$305 USD
A
Retailer 2
-
$487 AUD
$342 USD
View
Final sale: no returns
A
Retailer 3
-
$504 AUD
$354 USD
View
A
Retailer 4
-
$540 AUD
$379 USD
View
A
Retailer 5
-
$540 AUD
$379 USD
View
A
Retailer 6
-
$602 AUD
£333 GBP
View
B+
Retailer 7
-
$800 AUD
$562 USD
View
B+
Retailer 8
-
$804 AUD
$565 USD
View
B+
Retailer 9
-
$878 AUD
$617 USD
View
B+
Retailer 10
-
$958 AUD
£530 GBP
View
B+
Retailer 11
-
$1,018 AUD
$715 USD
View
Retailer 12
-
$1,381 AUD
$970 USD
View
Price last confirmed 13 days ago
B
Retailer 13
-
$1,656 AUD
$1,163 USD
View
B
Retailer 14
-
$1,733 AUD
$1,217 USD
View
B
Retailer 15
-
$2,171 AUD
£1,201 GBP
View
Most Expensive
B
Brilliant Earth
16756886A · Oct 29
$2,463 AUD
$1,730 USD
View
15 more retailers have this diamond
Prices start from $434 AUDSave up to $2,029 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
1.57ct Oval
$434 AUD