CaratHunter
Plans
Round|Lab Grown|IGI

3.09ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG621433896

Shape and cutting style on the report: Round brilliant

Certificate IGI LG621433896

Diamond specifications and retailer prices

From $2,193 NZD
As of November 5, 2026
Save $710 NZD (24%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $2,903 NZD at The Diamond Guys · As of November 6, 2026
View at The Diamond Guys

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 LG621433896 or 621433896. Listed at 2 retailers as of November 5, 2026, with prices from $2,193 to $2,903, a $710 spread on the same certified stone. The Diamond Guys lists it at $2,903. 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 angle34.8°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG621433896
Dimensions9.37 × 9.31 × 5.80 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
9.37 mm9.31 mm3.09 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG621433896
Side View
Table 58.0%Crown 34.8°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $589 NZD|Low: $432 NZD|High: $4,874 NZD|Avg: $2,156 NZD|+31.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
The Diamond Guys
September 18, 2026
Retailer 1$589 NZD
Retailer 5$1,066 NZD
Retailer 3$1,151 NZD
Retailer 4$1,210 NZD
Retailer 6$1,697 NZD
Retailer 8$1,699 NZD
Retailer 9$1,846 NZD
Retailer 7$1,891 NZD
Retailer 10$2,193 NZD
The Diamond Guys$2,903 NZD
Retailer 2$4,625 NZD

72 data points across 11 retailers

2 retailers$2,193 NZD to $2,903 NZD

B+
Cheapest Retailer
-
$2,193 NZD
Most Expensive
B
The Diamond Guys
1954434402 · Nov 6
$2,903 NZD
$1,632 USD
View
1 more retailer has this diamond
Prices start from $2,193 NZDSave up to $710 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.

B+
3.09ct Round
$2,193 NZD