CaratHunter
Plans
Round|Lab Grown|IGI

3.09ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG623459877

Shape and cutting style on the report: Round brilliant

Certificate IGI LG623459877

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)
3 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 LG623459877 or 623459877. Listed at 3 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 angle35.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG623459877
Dimensions9.35 × 9.29 × 5.78 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
9.35 mm9.29 mm3.09 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG623459877
Side View
Table 56.0%Crown 35.9°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
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: $7,489 NZD|Avg: $2,638 NZD|+31.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
The Diamond Guys
September 18, 2026
Retailer 1$589 NZD
Retailer 8$672 NZD
Retailer 7$1,066 NZD
Retailer 5$1,151 NZD
Retailer 6$1,210 NZD
Retailer 9$1,697 NZD
Retailer 11$1,699 NZD
Retailer 12$1,846 NZD
Retailer 10$1,895 NZD
Retailer 2$2,193 NZD
The Diamond Guys$2,903 NZD
Retailer 3$4,625 NZD
Retailer 4$7,489 NZD

69 data points across 13 retailers

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

Retailer 1
-
$672 NZD
Price last confirmed 51 days ago
B
Retailer 2
-
$2,193 NZD
View
Most Expensive
B
The Diamond Guys
1954434401 · Nov 6
$2,903 NZD
$1,632 USD
View
2 more retailers have 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