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3.09ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG848664692

Shape and cutting style on the report: Round brilliant

Certificate IGI LG848664692

Diamond specifications and retailer prices

From $1,254 NZD
As of November 6, 2026
Save $2,571 NZD (67%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $3,825 NZD at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 3.09ct lab-grown round diamond

This 3.09ct 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 LG848664692 or 848664692. Listed at 3 retailers as of November 5, 2026, with prices from $1,254 to $3,825, a $2,571 spread on the same certified stone. Brilliant Earth lists it at $3,825. 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

3.09
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG848664692
Dimensions9.40 × 9.38 × 5.74 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.40 mm9.38 mm3.09 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG848664692
Side View
Table 55.0%Crown 33.3°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 61.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $3,825 NZD|Low: $1,254 NZD|High: $3,825 NZD|Avg: $2,866 NZD
Brilliant Earth
Retailer 2
Retailer 3
November 6, 2026
Retailer 2$1,254 NZD
Retailer 3$3,133 NZD
Brilliant Earth$3,825 NZD

7 data points across 3 retailers

3 retailers$1,254 NZD to $3,825 NZD

A
Cheapest Retailer
-
$1,254 NZD
B
Retailer 2
-
$3,133 NZD
View
Most Expensive
B
Brilliant Earth
22257970A · Nov 5
$3,825 NZD
$2,150 USD
View
2 more retailers have this diamond
Prices start from $1,254 NZDSave up to $2,571 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
3.09ct Round
$1,254 NZD