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Round|Lab Grown|IGI

3.09ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG689536459

Shape and cutting style on the report: Round brilliant

Certificate IGI LG689536459

Diamond specifications and retailer prices

From $608 NZD
As of November 5, 2026
Save $2,549 NZD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,158 NZD at Rare Carat · As of November 4, 2026
View at Rare Carat

About this 3.09ct lab-grown round diamond

This 3.09ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG689536459 or 689536459. Listed at 14 retailers as of November 4, 2026, with prices from $608 to $3,158, a $2,549 spread on the same certified stone. Rare Carat lists it at $3,158. 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG689536459
Dimensions9.38 × 9.42 × 5.71 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.38 mm9.42 mm3.09 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG689536459
Side View
Table 59.0%Crown 34.7°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.7%

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 5
Current: $3,158 NZD|Low: $608 NZD|High: $7,564 NZD|Avg: $2,094 NZD|-3.3%
Rare Carat
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
November 5, 2026
Retailer 11$608 NZD
Retailer 13$706 NZD
Retailer 14$754 NZD
Retailer 4$841 NZD
Retailer 2$1,002 NZD
Retailer 16$1,023 NZD
Retailer 3$1,211 NZD
Retailer 6$1,217 NZD
Retailer 10$1,338 NZD
Retailer 5$1,697 NZD
Retailer 15$2,213 NZD
Retailer 12$2,425 NZD
Retailer 7$2,469 NZD
Retailer 9$3,015 NZD
Rare Carat$3,158 NZD
Retailer 8$7,564 NZD

9 data points across 16 retailers

14 retailers$608 NZD to $3,158 NZD

A
Cheapest Retailer
-
$608 NZD
A
Retailer 2
-
$706 NZD
View
A
Retailer 3
-
$754 NZD
View
A
Retailer 4
-
$841 NZD
View
A
Retailer 5
-
$1,002 NZD
View
A
Retailer 6
-
$1,023 NZD
View
Retailer 7
-
$1,211 NZD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$1,217 NZD
View
A
Retailer 9
-
$1,338 NZD
View
A
Retailer 10
-
$1,697 NZD
View
B+
Retailer 11
-
$2,213 NZD
View
B+
Retailer 12
-
$2,425 NZD
View
B
Retailer 13
-
$3,015 NZD
View
Most Expensive
B
Rare Carat
KI4595364KF689 · Nov 4
$3,158 NZD
$1,775 USD
View
13 more retailers have this diamond
Prices start from $608 NZDSave up to $2,549 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
$608 NZD