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Round|Lab Grown|IGI

3.09ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG743594170

Shape and cutting style on the report: Round brilliant

Certificate IGI LG743594170

Diamond specifications and retailer prices

From $1,489 NZD
$839 USD
As of November 1, 2026
Save $16,379 NZD (92%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: $17,867 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 LG743594170 or 743594170. Listed at 28 retailers as of October 31, 2026, with prices from $1,489 to $17,867, a $16,379 spread on the same certified stone. Brilliant Earth lists it at $17,867. 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 angle34.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743594170
Dimensions9.42 × 9.37 × 5.72 mm
L/W Ratio1.01
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
9.42 mm9.37 mm3.09 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743594170
Side View
Table 58.0%Crown 34.2°Girdle: MediumPavilion 40.9°Culet: NoneDepth 60.9%

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: $17,867 NZD|Low: $1,489 NZD|High: $17,867 NZD|Avg: $5,635 NZD
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
Retailer 19
Retailer 20
Retailer 21
November 1, 2026
Retailer 3$1,489 NZD
Retailer 21$1,620 NZD
Retailer 7$1,726 NZD
Retailer 17$2,040 NZD
Retailer 6$2,279 NZD
Retailer 12$2,857 NZD
Retailer 13$2,925 NZD
Retailer 16$3,033 NZD
Retailer 18$3,953 NZD
Retailer 8$3,969 NZD
Retailer 15$4,303 NZD
Retailer 19$4,424 NZD
Retailer 4$5,357 NZD
Retailer 9$5,401 NZD
Retailer 10$5,683 NZD
Retailer 2$6,463 NZD
Retailer 14$9,083 NZD
Retailer 5$9,741 NZD
Retailer 11$13,219 NZD
Retailer 20$16,597 NZD
Brilliant Earth$17,867 NZD

34 data points across 21 retailers

28 retailers$1,489 NZD to $17,867 NZD

A
Cheapest Retailer
-
$1,489 NZD
$839 USD
A
Retailer 2
-
$1,620 NZD
$913 USD
View
A
Retailer 3
-
$1,726 NZD
$973 USD
View
A
Retailer 4
-
$1,883 NZD
$1,061 USD
View
Final sale: no returns
A
Retailer 5
-
$2,040 NZD
$1,150 USD
View
A
Retailer 6
-
$2,250 NZD
$1,268 USD
View
Retailer 7
-
$2,279 NZD
£1,011 GBP
View
Price last confirmed 15 days ago
A
Retailer 8
-
$2,430 NZD
HK$10,700 HKD
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
-
$3,288 NZD
$1,853 USD
View
A
Retailer 13
-
$3,953 NZD
A$3,428 AUD
View
A
Retailer 14
-
$3,969 NZD
$2,237 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
-
$5,401 NZD
$3,044 USD
View
B+
Retailer 20
-
$5,683 NZD
$3,203 USD
View
B+
Retailer 21
-
$6,463 NZD
£2,868 GBP
View
B+
Retailer 22
-
$6,791 NZD
$3,827 USD
View
B+
Retailer 23
-
$7,059 NZD
SGD 5,376 SGD
View
Retailer 24
-
$9,083 NZD
A$7,876 AUD
View
Price last confirmed 29 days ago
Retailer 25
-
$9,741 NZD
$5,490 USD
View
Price last confirmed 14 days ago
B
Retailer 26
-
$13,219 NZD
$7,450 USD
View
B
Retailer 27
-
$16,597 NZD
$9,354 USD
View
Most Expensive
B
Brilliant Earth
18652381Y · Oct 31
$17,867 NZD
$10,070 USD
View
27 more retailers have this diamond
Prices start from $1,489 NZDSave up to $16,379 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
$1,489 NZD