Oval|Lab Grown|IGI

1.58ct D SI1 Oval Lab Grown Diamond

VG • D/SI1 • IGI LG843657203

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG843657203

Diamond specifications and retailer prices

From $431 USD
As of November 1, 2026
Save $727 USD (63%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,158 USD at MOH London · As of November 1, 2026
View at MOH London

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 very-good cut grade and certified by IGI LG843657203 or 843657203. Listed at 5 retailers as of November 1, 2026, with prices from $431 to $1,158, a $727 spread on the same certified stone. MOH London lists it at $1,158. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.58
Carat
D
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843657203
Dimensions9.80 × 6.62 × 3.97 mm
L/W Ratio1.48
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.80 mm6.62 mm1.58 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843657203
Side View
Table 62.0%Crown 32.5°Girdle: THN-MEDPavilion 40.7°Culet: NoneDepth 60.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $1,158 USD|Low: $431 USD|High: $1,158 USD|Avg: $707 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 4$431 USD
Retailer 5$450 USD
Retailer 2$531 USD
Retailer 3$965 USD
MOH London$1,158 USD

1 data point across 5 retailers

5 retailers$431 USD to $1,158 USD

B+
Cheapest Retailer
-
$431 USD
A
Retailer 2
-
$450 USD
£354 GBP
View
B+
Retailer 3
-
$531 USD
View
B
Retailer 4
-
$965 USD
View
Most Expensive
B
MOH London
LG843657203 · Nov 1
$1,158 USD
£912 GBP
View
4 more retailers have this diamond
Prices start from $431 USDSave up to $727 USD

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
$431 USD