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Round|Lab Grown|IGI

3.09ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG700584426

Shape and cutting style on the report: Round brilliant

Certificate IGI LG700584426

Diamond specifications and retailer prices

From $649 NZD
As of November 5, 2026
Save $2,917 NZD (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,567 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG700584426 or 700584426. Listed at 15 retailers as of November 4, 2026, with prices from $649 to $3,567, a $2,917 spread on the same certified stone. Rare Carat lists it at $3,567. 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
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700584426
Dimensions9.38 × 9.42 × 5.76 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 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700584426
Side View
Table 57.0%Crown 34.5°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.3%

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: $3,567 NZD|Low: $649 NZD|High: $9,428 NZD|Avg: $2,549 NZD|-27.5%
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
Retailer 17
November 6, 2026
Retailer 13$649 NZD
Retailer 7$754 NZD
Retailer 6$806 NZD
Retailer 17$888 NZD
Retailer 10$1,069 NZD
Retailer 14$1,076 NZD
Retailer 15$1,284 NZD
Retailer 4$1,288 NZD
Retailer 16$1,368 NZD
Retailer 2$1,434 NZD
Retailer 3$1,987 NZD
Retailer 12$2,362 NZD
Retailer 5$2,588 NZD
Retailer 11$3,147 NZD
Rare Carat$3,567 NZD
Retailer 8$8,110 NZD
Retailer 9$9,428 NZD

11 data points across 17 retailers

15 retailers$649 NZD to $3,567 NZD

A
Cheapest Retailer
-
$649 NZD
A
Retailer 2
-
$754 NZD
View
A
Retailer 3
-
$806 NZD
View
A
Retailer 4
-
$888 NZD
View
A
Retailer 5
-
$1,069 NZD
View
A
Retailer 6
-
$1,076 NZD
View
Retailer 7
-
$1,284 NZD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$1,288 NZD
View
A
Retailer 9
-
$1,368 NZD
View
A
Retailer 10
-
$1,434 NZD
View
B+
Retailer 11
-
$1,987 NZD
View
B+
Retailer 12
-
$2,362 NZD
View
B
Retailer 13
-
$2,588 NZD
View
B
Retailer 14
-
$3,147 NZD
View
Most Expensive
B
Rare Carat
KI4265844KF700 · Nov 4
$3,567 NZD
$2,005 USD
View
14 more retailers have this diamond
Prices start from $649 NZDSave up to $2,917 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
$649 NZD