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Oval|Lab Grown|IGI

1.58ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG843611476

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG843611476

Diamond specifications and retailer prices

From $524 NZD
£233 GBP
As of November 1, 2026
Save $1,364 NZD (72%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,950 NZD at Michael Trio · As of October 13, 2026
View at Michael Trio

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 LG843611476 or 843611476. Listed at 8 retailers as of November 1, 2026, with a 260% 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

1.58
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843611476
Dimensions9.65 × 6.58 × 4.04 mm
L/W Ratio1.47
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.65 mm6.58 mm1.58 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843611476
Side View
Table 56.0%Crown 32.2°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.4%

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: Nov 1
Current: $1,950 NZD|Low: $524 NZD|High: $1,950 NZD|Avg: $1,116 NZD
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 3$524 NZD
Retailer 8$635 NZD
Retailer 5$792 NZD
Retailer 4$872 NZD
Retailer 6$951 NZD
Retailer 7$1,519 NZD
Retailer 2$1,888 NZD
Michael Trio$1,950 NZD

19 data points across 8 retailers

8 retailers$524 NZD to $1,888 NZD

A
Cheapest Retailer
-
$524 NZD
£233 GBP
B+
Retailer 2
-
$635 NZD
$358 USD
View
A
Retailer 3
-
$792 NZD
€425 EUR
View
A
Retailer 4
-
$872 NZD
£387 GBP
View
A
Retailer 5
-
$951 NZD
$536 USD
View
B+
Retailer 6
-
$1,519 NZD
$856 USD
View
B
Retailer 7
-
$1,888 NZD
£838 GBP
View
Most Expensive
Michael Trio
1849293169 · Oct 13
$1,950 NZD
SGD 1,485 SGD
View
Price last confirmed 19 days ago
7 more retailers have this diamond
Prices start from $524 NZDSave up to $1,364 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
$524 NZD