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Round|Lab Grown|IGI

1.58ct H SI2 Round Lab Grown Diamond

EX • H/SI2 • IGI LG436046898

Shape and cutting style on the report: Round brilliant

Certificate IGI LG436046898

Diamond specifications and retailer prices

From $900 USD
As of October 30, 2026
Save $3,701 USD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,601 USD at MOH London · As of October 27, 2026
View at MOH London

About this 1.58ct lab-grown round diamond

This 1.58ct lab-grown round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436046898 or 436046898. Listed at 10 retailers as of October 27, 2026, with prices from $900 to $4,601, a $3,701 spread on the same certified stone. MOH London lists it at $4,601. 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
H
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.4°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436046898
Dimensions7.37 × 7.41 × 4.68 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
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Top View
7.37 mm7.41 mm1.58 ctH / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436046898
Side View
Table 56.5%Crown 36.4°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 63.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $4,601 USD|Low: $900 USD|High: $4,657 USD|Avg: $2,490 USD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 2$900 USD
Retailer 4$1,509 USD
Retailer 5$1,553 USD
Retailer 7$2,201 USD
Retailer 3$2,542 USD
Retailer 6$2,920 USD
Retailer 8$3,602 USD
MOH London$4,601 USD

11 data points across 8 retailers

10 retailers$900 USD to $4,601 USD

A
Cheapest Retailer
-
$900 USD
B+
Retailer 2
-
$1,387 USD
View
B+
Retailer 3
-
$1,509 USD
View
B+
Retailer 4
-
$1,553 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,609 USD
View
Retailer 6
-
$1,609 USD
View
Price last confirmed 18 days ago
B
Retailer 7
-
$2,542 USD
View
B
Retailer 8
-
$2,920 USD
View
B
Retailer 9
-
$3,016 USD
View
Most Expensive
B
MOH London
LG436046898 · Oct 27
$4,601 USD
£3,623 GBP
View
9 more retailers have this diamond
Prices start from $900 USDSave up to $3,701 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 Round
$900 USD