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Oval|Lab Grown|IGI

1.58ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG821629778

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG821629778

Diamond specifications and retailer prices

From $375 USD
As of October 25, 2026
Save $1,135 USD (75%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,510 USD at MOH London · As of October 29, 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 top-tier cut grade and certified by IGI LG821629778 or 821629778. Listed at 6 retailers as of October 25, 2026, with prices from $375 to $1,510, a $1,135 spread on the same certified stone. MOH London lists it at $1,510. 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
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle41.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821629778
Dimensions8.37 × 7.01 × 4.01 mm
L/W Ratio1.19
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.37 mm7.01 mm1.58 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821629778
Side View
Table 66.0%Crown 33.2°Girdle: MED-STKPavilion 41.7°Culet: LargeDepth 57.2%

Caratlytics Score

How it works →
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 25
Current: $1,510 USD|Low: $210 USD|High: $1,520 USD|Avg: $664 USD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 7$210 USD
Retailer 3$375 USD
Retailer 6$567 USD
Retailer 4$613 USD
Retailer 5$637 USD
Retailer 2$666 USD
MOH London$1,510 USD

39 data points across 7 retailers

6 retailers$375 USD to $1,510 USD

A
Cheapest Retailer
-
$375 USD
B+
Retailer 2
-
$567 USD
View
B+
Retailer 3
-
$613 USD
View
B+
Retailer 4
-
$637 USD
View
B+
Retailer 5
-
$666 USD
£524 GBP
View
Most Expensive
B
MOH London
LG821629778 · Oct 29
$1,510 USD
£1,189 GBP
View
5 more retailers have this diamond
Prices start from $375 USDSave up to $1,135 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
$375 USD