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Round|Lab Grown|IGI

3.09ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG731566848

Shape and cutting style on the report: Round brilliant

Certificate IGI LG731566848

Diamond specifications and retailer prices

From $1,643 NZD
$926 USD
As of November 1, 2026
Save $16,313 NZD (91%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $17,956 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG731566848 or 731566848. Listed at 27 retailers as of October 31, 2026, with prices from $1,643 to $17,956, a $16,313 spread on the same certified stone. Brilliant Earth lists it at $17,956. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.09
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG731566848
Dimensions9.36 × 9.39 × 5.73 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
9.36 mm9.39 mm3.09 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG731566848
Side View
Table 58.0%Crown 34.8°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $17,956 NZD|Low: $1,643 NZD|High: $26,011 NZD|Avg: $4,896 NZD|-31.0%
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 1, 2026
Retailer 18$1,643 NZD
Retailer 17$1,787 NZD
Retailer 12$1,838 NZD
Retailer 5$1,906 NZD
Retailer 14$2,218 NZD
Retailer 4$2,279 NZD
Retailer 7$2,857 NZD
Retailer 2$2,925 NZD
Retailer 13$3,033 NZD
Retailer 9$3,930 NZD
Retailer 6$4,239 NZD
Retailer 11$4,303 NZD
Retailer 15$4,424 NZD
Retailer 3$5,357 NZD
Retailer 10$5,962 NZD
Retailer 16$6,496 NZD
Retailer 8$9,147 NZD
Brilliant Earth$17,956 NZD

32 data points across 18 retailers

27 retailers$1,643 NZD to $17,956 NZD

A
Cheapest Retailer
-
$1,643 NZD
$926 USD
A
Retailer 2
-
$1,787 NZD
$1,007 USD
View
A
Retailer 3
-
$1,838 NZD
$1,036 USD
View
Final sale: no returns
A
Retailer 4
-
$1,906 NZD
$1,074 USD
View
A
Retailer 5
-
$2,218 NZD
$1,250 USD
View
Retailer 6
-
$2,279 NZD
£1,011 GBP
View
Price last confirmed 15 days ago
A
Retailer 7
-
$2,317 NZD
HK$10,200 HKD
View
A
Retailer 8
-
$2,390 NZD
$1,347 USD
View
A
Retailer 9
-
$2,857 NZD
$1,610 USD
View
A
Retailer 10
-
$2,925 NZD
£1,298 GBP
View
A
Retailer 11
-
$3,033 NZD
€1,628 EUR
View
A
Retailer 12
-
$3,930 NZD
A$3,408 AUD
View
A
Retailer 13
-
$4,239 NZD
$2,389 USD
View
A
Retailer 14
-
$4,280 NZD
$2,412 USD
View
A
Retailer 15
-
$4,303 NZD
A$3,731 AUD
View
A
Retailer 16
-
$4,424 NZD
ZAR 40,284 ZAR
View
A
Retailer 17
-
$4,873 NZD
$2,746 USD
View
B+
Retailer 18
-
$5,357 NZD
$3,019 USD
View
B+
Retailer 19
-
$5,962 NZD
$3,360 USD
View
B+
Retailer 20
-
$6,227 NZD
$3,510 USD
View
B+
Retailer 21
-
$6,496 NZD
£2,883 GBP
View
B+
Retailer 22
-
$6,626 NZD
$3,734 USD
View
B+
Retailer 23
-
$6,698 NZD
SGD 5,101 SGD
View
B+
Retailer 24
-
$7,197 NZD
$4,056 USD
View
Retailer 25
-
$9,147 NZD
A$7,931 AUD
View
Price last confirmed 27 days ago
B
Retailer 26
-
$17,207 NZD
$9,698 USD
View
Most Expensive
B
Brilliant Earth
15998885A · Oct 31
$17,956 NZD
$10,120 USD
View
26 more retailers have this diamond
Prices start from $1,643 NZDSave up to $16,313 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
$1,643 NZD