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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 $429 NZD
$242 USD
As of October 29, 2026
Save $1,735 NZD (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,165 NZD 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 $429 to $2,165, a $1,735 spread on the same certified stone. Brilliant Earth lists it at $2,165. 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: $2,165 NZD|Low: $342 NZD|High: $2,236 NZD|Avg: $1,117 NZD|-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 11$429 NZD
Retailer 4$499 NZD
Retailer 10$499 NZD
Retailer 14$534 NZD
Retailer 3$754 NZD
Retailer 9$891 NZD
Retailer 6$969 NZD
Retailer 5$983 NZD
Retailer 8$1,012 NZD
Retailer 7$1,172 NZD
Retailer 12$1,659 NZD
Retailer 13$1,716 NZD
Retailer 15$1,721 NZD
Retailer 2$2,138 NZD
Brilliant Earth$2,165 NZD

45 data points across 15 retailers

18 retailers$429 NZD to $2,165 NZD

A
Cheapest Retailer
-
$429 NZD
$242 USD
A
Retailer 2
-
$499 NZD
$281 USD
View
Final sale: no returns
A
Retailer 3
-
$499 NZD
$281 USD
View
A
Retailer 4
-
$534 NZD
$301 USD
View
A
Retailer 5
-
$613 NZD
HK$2,700 HKD
View
B+
Retailer 6
-
$754 NZD
$425 USD
View
A
Retailer 7
-
$891 NZD
€478 EUR
View
B+
Retailer 8
-
$969 NZD
$546 USD
View
B+
Retailer 9
-
$983 NZD
$554 USD
View
B+
Retailer 10
-
$1,012 NZD
£449 GBP
View
B+
Retailer 11
-
$1,172 NZD
$660 USD
View
Retailer 12
-
$1,659 NZD
$935 USD
View
Price last confirmed 14 days ago
B
Retailer 13
-
$1,716 NZD
$967 USD
View
B
Retailer 14
-
$1,721 NZD
$970 USD
View
B
Retailer 15
-
$1,805 NZD
SGD 1,375 SGD
View
B
Retailer 16
-
$1,807 NZD
$1,018 USD
View
B
Retailer 17
-
$2,138 NZD
£949 GBP
View
Most Expensive
B
Brilliant Earth
5665635A · Oct 31
$2,165 NZD
$1,220 USD
View
17 more retailers have this diamond
Prices start from $429 NZDSave up to $1,735 NZD

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
$429 NZD