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Oval|Lab Grown|IGI

1.58ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG522239116

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG522239116

Diamond specifications and retailer prices

From $345 AUD
$242 USD
As of October 29, 2026
Save $1,392 AUD (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,737 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.58ct lab-grown oval diamond

This 1.58ct 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 LG522239116 or 522239116. Listed at 18 retailers as of October 29, 2026, with prices from $345 to $1,737, a $1,392 spread on the same certified stone. Brilliant Earth lists it at $1,737. 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

1.58
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG522239116
Dimensions9.27 × 6.59 × 4.18 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizePointed
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
9.27 mm6.59 mm1.58 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG522239116
Side View
Table 60.5%Crown 36.1°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 63.4%

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: $1,737 AUD|Low: $275 AUD|High: $1,794 AUD|Avg: $895 AUD|-3.2%
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
November 1, 2026
Retailer 10$345 AUD
Retailer 4$400 AUD
Retailer 9$400 AUD
Retailer 14$429 AUD
Retailer 3$605 AUD
Retailer 8$715 AUD
Retailer 6$777 AUD
Retailer 5$789 AUD
Retailer 2$812 AUD
Retailer 7$940 AUD
Retailer 11$1,331 AUD
Retailer 12$1,377 AUD
Retailer 15$1,381 AUD
Retailer 13$1,725 AUD
Brilliant Earth$1,737 AUD

45 data points across 15 retailers

18 retailers$345 AUD to $1,737 AUD

A
Cheapest Retailer
-
$345 AUD
$242 USD
A
Retailer 2
-
$400 AUD
$281 USD
View
Final sale: no returns
A
Retailer 3
-
$400 AUD
$281 USD
View
A
Retailer 4
-
$429 AUD
$301 USD
View
A
Retailer 5
-
$492 AUD
HK$2,700 HKD
View
B+
Retailer 6
-
$605 AUD
$425 USD
View
A
Retailer 7
-
$715 AUD
€478 EUR
View
B+
Retailer 8
-
$777 AUD
$546 USD
View
B+
Retailer 9
-
$789 AUD
$554 USD
View
B+
Retailer 10
-
$812 AUD
£449 GBP
View
B+
Retailer 11
-
$940 AUD
$660 USD
View
Retailer 12
-
$1,331 AUD
$935 USD
View
Price last confirmed 13 days ago
B
Retailer 13
-
$1,377 AUD
$967 USD
View
B
Retailer 14
-
$1,381 AUD
$970 USD
View
B
Retailer 15
-
$1,449 AUD
SGD 1,375 SGD
View
B
Retailer 16
-
$1,450 AUD
$1,018 USD
View
Retailer 17
-
$1,725 AUD
£954 GBP
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
5665635A · Oct 31
$1,737 AUD
$1,220 USD
View
17 more retailers have this diamond
Prices start from $345 AUDSave up to $1,392 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
1.58ct Oval
$345 AUD