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3.54ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG620450105

Shape and cutting style on the report: Round brilliant

Certificate IGI LG620450105

Diamond specifications and retailer prices

From $725 NZD
$408 USD
As of October 26, 2026
Save $5,709 NZD (89%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $6,434 NZD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 3.54ct lab-grown round diamond

This 3.54ct 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 LG620450105 or 620450105. Listed at 9 retailers as of October 26, 2026, with prices from $725 to $6,434, a $5,709 spread on the same certified stone. Do Amore Diamonds lists it at $6,434. 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

3.54
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620450105
Dimensions9.75 × 9.70 × 5.99 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
9.75 mm9.70 mm3.54 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620450105
Side View
Table 57.0%Crown 34.6°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.6%

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 26
Current: $6,434 NZD|Low: $601 NZD|High: $8,140 NZD|Avg: $2,837 NZD|-3.5%
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
Retailer 14
Retailer 15
October 29, 2026
Retailer 14$725 NZD
Retailer 9$812 NZD
Retailer 15$841 NZD
Retailer 13$1,420 NZD
Retailer 8$1,422 NZD
Retailer 7$1,761 NZD
Retailer 3$1,790 NZD
Retailer 6$1,870 NZD
Retailer 4$2,366 NZD
Retailer 11$2,520 NZD
Retailer 12$3,188 NZD
Retailer 10$3,288 NZD
Retailer 2$3,663 NZD
Do Amore Diamonds$6,434 NZD
Retailer 5$8,140 NZD

20 data points across 15 retailers

9 retailers$725 NZD to $6,434 NZD

A
Cheapest Retailer
-
$725 NZD
$408 USD
A
Retailer 2
-
$812 NZD
$457 USD
View
B+
Retailer 3
-
$1,420 NZD
$799 USD
View
A
Retailer 4
-
$1,422 NZD
$800 USD
View
Retailer 5
-
$2,520 NZD
$1,418 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
$3,188 NZD
$1,794 USD
View
B+
Retailer 7
-
$3,288 NZD
$1,850 USD
View
B
Retailer 8
-
$3,663 NZD
£1,623 GBP
View
Most Expensive
B
Do Amore Diamonds
27-A422448BA · Oct 29
$6,434 NZD
$3,620 USD
View
8 more retailers have this diamond
Prices start from $725 NZDSave up to $5,709 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
3.54ct Round
$725 NZD