CaratHunter
Plans
Radiant|Lab Grown|IGI

3.09ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG754564236

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG754564236

Diamond specifications and retailer prices

From $615 NZD
As of November 6, 2026
Save $4,923 NZD (89%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $5,538 NZD at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 3.09ct lab-grown radiant diamond

This 3.09ct lab-grown radiant 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 LG754564236 or 754564236. Listed at 17 retailers as of November 6, 2026, with prices from $615 to $5,538, a $4,923 spread on the same certified stone. Brilliant Earth lists it at $5,538. 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 angle37.8°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754564236
Dimensions10.57 × 7.25 × 4.84 mm
L/W Ratio1.46
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.57 mm7.25 mm3.09 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754564236
Side View
Table 65.0%Crown 37.8°Girdle: MediumPavilion 35.6°Culet: NoneDepth 66.8%

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 6
Current: $5,538 NZD|Low: $606 NZD|High: $5,664 NZD|Avg: $1,728 NZD|-1.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 7, 2026
Retailer 18$615 NZD
Retailer 5$687 NZD
Retailer 15$713 NZD
Retailer 14$761 NZD
Retailer 17$761 NZD
Retailer 3$936 NZD
Retailer 7$1,025 NZD
Retailer 12$1,037 NZD
Retailer 6$1,337 NZD
Retailer 11$1,337 NZD
Retailer 2$1,353 NZD
Retailer 9$1,872 NZD
Retailer 4$2,233 NZD
Retailer 16$2,448 NZD
Retailer 10$2,525 NZD
Retailer 8$2,962 NZD
Retailer 13$3,050 NZD
Brilliant Earth$5,538 NZD

42 data points across 18 retailers

17 retailers$615 NZD to $5,538 NZD

A
Cheapest Retailer
-
$615 NZD
A
Retailer 2
-
$687 NZD
View
Final sale: no returns
A
Retailer 3
-
$713 NZD
View
A
Retailer 4
-
$761 NZD
View
Retailer 5
-
$761 NZD
View
Price last confirmed 13 days ago
B+
Retailer 6
-
$1,025 NZD
View
A
Retailer 7
-
$1,037 NZD
View
A
Retailer 8
-
$1,337 NZD
View
A
Retailer 9
-
$1,337 NZD
View
A
Retailer 10
-
$1,353 NZD
View
A
Retailer 11
-
$1,872 NZD
View
B+
Retailer 12
-
$2,233 NZD
View
B+
Retailer 13
-
$2,448 NZD
View
B+
Retailer 14
-
$2,525 NZD
View
B+
Retailer 15
-
$2,962 NZD
View
B+
Retailer 16
-
$3,050 NZD
View
Most Expensive
B
Brilliant Earth
18587410A · Nov 6
$5,538 NZD
$3,070 USD
View
16 more retailers have this diamond
Prices start from $615 NZDSave up to $4,923 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 Radiant
$615 NZD