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3.58ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG591375823

Shape and cutting style on the report: Round brilliant

Certificate IGI LG591375823

Diamond specifications and retailer prices

From $731 NZD
$412 USD
As of October 26, 2026
Save $5,763 NZD (89%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,494 NZD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 3.58ct lab-grown round diamond

This 3.58ct lab-grown round sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG591375823 or 591375823. Listed at 10 retailers as of October 26, 2026, with prices from $731 to $6,494, a $5,763 spread on the same certified stone. Do Amore Diamonds lists it at $6,494. 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

3.58
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG591375823
Dimensions9.87 × 9.82 × 6.04 mm
L/W Ratio1.01
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
9.87 mm9.82 mm3.58 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG591375823
Side View
Table 58.0%Crown 34.4°Girdle: MediumPavilion 41.1°Culet: NoneDepth 61.3%

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: Oct 26
Current: $6,494 NZD|Low: $731 NZD|High: $6,725 NZD|Avg: $2,684 NZD|-3.4%
Do Amore Diamonds
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 29, 2026
Retailer 12$731 NZD
Retailer 7$820 NZD
Retailer 10$1,434 NZD
Retailer 6$1,437 NZD
Retailer 5$1,778 NZD
Retailer 3$1,824 NZD
Retailer 4$1,883 NZD
Retailer 11$2,315 NZD
Retailer 8$2,543 NZD
Retailer 9$3,217 NZD
Retailer 2$3,696 NZD
Retailer 13$4,400 NZD
Do Amore Diamonds$6,494 NZD

22 data points across 13 retailers

10 retailers$731 NZD to $6,494 NZD

A
Cheapest Retailer
-
$731 NZD
$412 USD
A
Retailer 2
-
$820 NZD
$462 USD
View
B+
Retailer 3
-
$1,434 NZD
$808 USD
View
A
Retailer 4
-
$1,437 NZD
$810 USD
View
B+
Retailer 5
-
$2,315 NZD
$1,305 USD
View
Retailer 6
-
$2,543 NZD
$1,433 USD
View
Price last confirmed 7 days ago
B
Retailer 7
-
$3,217 NZD
$1,813 USD
View
B
Retailer 8
-
$3,696 NZD
£1,640 GBP
View
B
Retailer 9
-
$4,400 NZD
$2,480 USD
View
Most Expensive
B
Do Amore Diamonds
27-4662990B2 · Oct 29
$6,494 NZD
$3,660 USD
View
9 more retailers have this diamond
Prices start from $731 NZDSave up to $5,763 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
3.58ct Round
$731 NZD