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Round|Lab Grown|IGI

1.58ct I SI2 Round Lab Grown Diamond

EX • I/SI2 • IGI LG480168615

Shape and cutting style on the report: Round brilliant

Certificate IGI LG480168615

Diamond specifications and retailer prices

From $1,544 NZD
$870 USD
As of October 31, 2026
Save $7,044 NZD (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $8,588 NZD at MOH London · As of October 29, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG480168615 or 480168615. Listed at 10 retailers as of October 29, 2026, with prices from $1,544 to $8,588, a $7,044 spread on the same certified stone. MOH London lists it at $8,588. 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.1°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG480168615
Dimensions7.58 × 7.56 × 4.48 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.58 mm7.56 mm1.58 ctI / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG480168615
Side View
Table 59.0%Crown 32.1°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 59.2%

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 31
Current: $8,588 NZD|Low: $1,544 NZD|High: $8,655 NZD|Avg: $3,761 NZD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 2$1,544 NZD
Retailer 6$2,292 NZD
Retailer 10$2,493 NZD
Retailer 9$2,567 NZD
Retailer 7$2,658 NZD
Retailer 12$2,658 NZD
Retailer 4$3,086 NZD
Retailer 3$3,673 NZD
Retailer 8$4,207 NZD
Retailer 13$4,956 NZD
Retailer 11$4,982 NZD
Retailer 5$5,951 NZD
MOH London$8,588 NZD

17 data points across 13 retailers

10 retailers$1,544 NZD to $8,588 NZD

A
Cheapest Retailer
-
$1,544 NZD
$870 USD
B+
Retailer 2
-
$2,292 NZD
$1,292 USD
View
B+
Retailer 3
-
$2,493 NZD
$1,405 USD
View
B+
Retailer 4
-
$2,567 NZD
$1,447 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,658 NZD
$1,498 USD
View
Retailer 6
-
$2,658 NZD
$1,498 USD
View
Price last confirmed 19 days ago
B
Retailer 7
-
$4,207 NZD
$2,371 USD
View
B
Retailer 8
-
$4,956 NZD
$2,793 USD
View
B
Retailer 9
-
$4,982 NZD
$2,808 USD
View
Most Expensive
B
MOH London
LG480168615 · Oct 29
$8,588 NZD
£3,811 GBP
View
9 more retailers have this diamond
Prices start from $1,544 NZDSave up to $7,044 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 Round
$1,544 NZD