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Round|Lab Grown|IGI

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 $1,035 AUD
$725 USD
As of November 2, 2026
Save $2,918 AUD (74%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,953 AUD 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 $1,035 to $3,953, a $2,918 spread on the same certified stone. Brilliant Earth lists it at $3,953. 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

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: Nov 2
Current: $3,953 AUD|Low: $713 AUD|High: $4,224 AUD|Avg: $1,823 AUD|-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$713 AUD
Retailer 3$1,006 AUD
Retailer 6$1,035 AUD
Retailer 2$1,208 AUD
Retailer 12$1,306 AUD
Retailer 5$1,384 AUD
Retailer 10$1,396 AUD
Retailer 11$1,884 AUD
Retailer 7$2,250 AUD
Retailer 8$2,697 AUD
Retailer 9$3,090 AUD
Brilliant Earth$3,953 AUD

37 data points across 12 retailers

14 retailers$1,035 AUD to $3,953 AUD

Retailer 1
-
$575 AUD
$403 USD
Price last confirmed 40 days ago
Retailer 2
-
$645 AUD
$452 USD
View
Price last confirmed 40 days ago
Retailer 3
-
$705 AUD
$494 USD
View
Price last confirmed 36 days ago
A
Retailer 4
-
$1,035 AUD
$725 USD
View
A
Retailer 5
-
$1,208 AUD
€806 EUR
View
B+
Retailer 6
-
$1,306 AUD
$915 USD
View
A
Retailer 7
-
$1,384 AUD
£764 GBP
View
A
Retailer 8
-
$1,396 AUD
$978 USD
View
B+
Retailer 9
-
$1,884 AUD
$1,320 USD
View
B
Retailer 10
-
$2,250 AUD
$1,577 USD
View
Retailer 11
-
$2,294 AUD
$1,608 USD
View
Price last confirmed 36 days ago
B
Retailer 12
-
$2,697 AUD
$1,890 USD
View
Retailer 13
-
$3,090 AUD
£1,705 GBP
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
10434013A · Nov 2
$3,953 AUD
$2,770 USD
View
13 more retailers have this diamond
Prices start from $1,035 AUDSave up to $2,918 AUD

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
$1,035 AUD