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3.56ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG634434828

Shape and cutting style on the report: Round brilliant

Certificate IGI LG634434828

Diamond specifications and retailer prices

From $1,289 NZD
$725 USD
As of November 2, 2026
Save $3,635 NZD (74%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,923 NZD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 3.56ct lab-grown round diamond

This 3.56ct 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 LG634434828 or 634434828. Listed at 14 retailers as of November 2, 2026, with prices from $1,289 to $4,923, a $3,635 spread on the same certified stone. Brilliant Earth lists it at $4,923. 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

3.56
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG634434828
Dimensions9.90 × 9.83 × 6.01 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.90 mm9.83 mm3.56 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG634434828
Side View
Table 57.0%Crown 34.4°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.9%

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: Nov 2
Current: $4,923 NZD|Low: $889 NZD|High: $5,261 NZD|Avg: $2,271 NZD|-6.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 4$889 NZD
Retailer 3$1,253 NZD
Retailer 6$1,289 NZD
Retailer 2$1,504 NZD
Retailer 12$1,626 NZD
Retailer 5$1,724 NZD
Retailer 10$1,738 NZD
Retailer 11$2,346 NZD
Retailer 7$2,803 NZD
Retailer 8$3,359 NZD
Retailer 9$3,848 NZD
Brilliant Earth$4,923 NZD

37 data points across 12 retailers

14 retailers$1,289 NZD to $4,923 NZD

Retailer 1
-
$716 NZD
$403 USD
Price last confirmed 40 days ago
Retailer 2
-
$803 NZD
$452 USD
View
Price last confirmed 40 days ago
Retailer 3
-
$878 NZD
$494 USD
View
Price last confirmed 36 days ago
A
Retailer 4
-
$1,289 NZD
$725 USD
View
A
Retailer 5
-
$1,504 NZD
€806 EUR
View
B+
Retailer 6
-
$1,626 NZD
$915 USD
View
A
Retailer 7
-
$1,724 NZD
£764 GBP
View
A
Retailer 8
-
$1,738 NZD
$978 USD
View
B+
Retailer 9
-
$2,346 NZD
$1,320 USD
View
B
Retailer 10
-
$2,803 NZD
$1,577 USD
View
Retailer 11
-
$2,858 NZD
$1,608 USD
View
Price last confirmed 36 days ago
B
Retailer 12
-
$3,359 NZD
$1,890 USD
View
Retailer 13
-
$3,848 NZD
£1,705 GBP
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
10434013A · Nov 2
$4,923 NZD
$2,770 USD
View
13 more retailers have this diamond
Prices start from $1,289 NZDSave up to $3,635 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
3.56ct Round
$1,289 NZD