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Heart|Lab Grown|IGI

3.09ct D SI2 Heart Lab Grown Diamond

ID • D/SI2 • IGI LG685540444

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG685540444

Diamond specifications and retailer prices

From $687 NZD
As of November 6, 2026
Save $5,175 NZD (88%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,863 NZD at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 3.09ct lab-grown heart diamond

This 3.09ct lab-grown heart sits in the three to five carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG685540444 or 685540444. Listed at 13 retailers as of November 6, 2026, with prices from $687 to $5,863, a $5,175 spread on the same certified stone. Brilliant Earth lists it at $5,863. 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
D
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG685540444
Dimensions9.89 × 8.87 × 5.99 mm
L/W Ratio1.11
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.89 mm8.87 mm3.09 ctD / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG685540444
Side View
Table 59.0%Crown 37.6°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 60.6%

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: $5,863 NZD|Low: $687 NZD|High: $6,891 NZD|Avg: $2,012 NZD|-14.9%
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
November 6, 2026
Retailer 10$687 NZD
Retailer 7$768 NZD
Retailer 13$851 NZD
Retailer 5$897 NZD
Retailer 11$1,136 NZD
Retailer 2$1,524 NZD
Retailer 9$1,542 NZD
Retailer 6$2,053 NZD
Retailer 4$2,143 NZD
Retailer 12$2,475 NZD
Retailer 3$2,737 NZD
Retailer 8$3,326 NZD
Brilliant Earth$5,863 NZD

45 data points across 13 retailers

13 retailers$687 NZD to $5,863 NZD

A
Cheapest Retailer
-
$687 NZD
A
Retailer 2
-
$768 NZD
View
A
Retailer 3
-
$851 NZD
View
Retailer 4
-
$897 NZD
View
Price last confirmed 12 days ago
B+
Retailer 5
-
$1,136 NZD
View
A
Retailer 6
-
$1,524 NZD
View
A
Retailer 7
-
$1,542 NZD
View
B+
Retailer 8
-
$2,053 NZD
View
B+
Retailer 9
-
$2,143 NZD
View
B+
Retailer 10
-
$2,475 NZD
View
B+
Retailer 11
-
$2,737 NZD
View
B
Retailer 12
-
$3,326 NZD
View
Most Expensive
B
Brilliant Earth
13281496A · Nov 6
$5,863 NZD
$3,250 USD
View
12 more retailers have this diamond
Prices start from $687 NZDSave up to $5,175 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 Heart
$687 NZD