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Round|Lab Grown|IGI

4.09ct F VVS2 Round Lab Grown Diamond

ID • F/VVS2 • IGI LG781630573

Shape and cutting style on the report: Round brilliant

Certificate IGI LG781630573

Diamond specifications and retailer prices

From $1,157 NZD
$652 USD
As of October 29, 2026
Save $4,495 NZD (80%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $16,661 NZD at Brilliant Earth · As of October 16, 2026
View at Brilliant Earth

About this 4.09ct lab-grown round diamond

This 4.09ct lab-grown round sits in the three to five carat band, graded F colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG781630573 or 781630573. Listed at 26 retailers as of October 29, 2026, with a 389% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.09
Carat
F
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG781630573
Dimensions10.29 × 10.24 × 6.24 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
10.29 mm10.24 mm4.09 ctF / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG781630573
Side View
Table 60.0%Crown 33.9°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 60.8%

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: Oct 29
Current: $16,661 NZD|Low: $1,111 NZD|High: $16,661 NZD|Avg: $3,402 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
November 1, 2026
Retailer 4$1,157 NZD
Retailer 5$1,341 NZD
Retailer 7$1,590 NZD
Retailer 11$1,659 NZD
Retailer 8$1,796 NZD
Retailer 3$1,920 NZD
Retailer 9$2,137 NZD
Retailer 10$2,139 NZD
Retailer 13$2,855 NZD
Retailer 12$2,875 NZD
Retailer 14$3,426 NZD
Retailer 6$4,576 NZD
Retailer 2$5,651 NZD
Retailer 15$6,538 NZD
Brilliant Earth$16,661 NZD

35 data points across 15 retailers

26 retailers$1,157 NZD to $5,651 NZD

A
Cheapest Retailer
-
$1,157 NZD
$652 USD
Retailer 2
-
$1,157 NZD
$652 USD
View
Price last confirmed 41 days ago
Retailer 3
-
$1,324 NZD
$746 USD
View
Price last confirmed 41 days ago
Retailer 4
-
$1,341 NZD
$756 USD
View
Price last confirmed 16 days ago
A
Retailer 5
-
$1,341 NZD
$756 USD
View
A
Retailer 6
-
$1,590 NZD
HK$7,000 HKD
View
A
Retailer 7
-
$1,659 NZD
$935 USD
View
A
Retailer 8
-
$1,796 NZD
£797 GBP
View
B+
Retailer 9
-
$1,920 NZD
$1,082 USD
View
A
Retailer 10
-
$2,090 NZD
$1,178 USD
View
A
Retailer 11
-
$2,137 NZD
£948 GBP
View
A
Retailer 12
-
$2,139 NZD
€1,148 EUR
View
B+
Retailer 13
-
$2,855 NZD
ZAR 25,999 ZAR
View
B+
Retailer 14
-
$2,875 NZD
A$2,493 AUD
View
B+
Retailer 15
-
$3,094 NZD
$1,744 USD
View
B+
Retailer 16
-
$3,135 NZD
$1,767 USD
View
Retailer 17
-
$3,426 NZD
$1,931 USD
View
Price last confirmed 13 days ago
Retailer 18
-
$3,772 NZD
$2,126 USD
View
Price last confirmed 42 days ago
B+
Retailer 19
-
$3,772 NZD
$2,126 USD
View
B+
Retailer 20
-
$4,576 NZD
$2,579 USD
View
B
Retailer 21
-
$4,613 NZD
SGD 3,513 SGD
View
B
Retailer 22
-
$4,629 NZD
$2,609 USD
View
B
Retailer 23
-
$4,766 NZD
$2,686 USD
View
B
Retailer 24
-
$5,651 NZD
£2,508 GBP
View
Retailer 25
-
$6,538 NZD
$3,685 USD
View
Price last confirmed 15 days ago
Most Expensive
Brilliant Earth
20980114A · Oct 16
$16,661 NZD
$9,390 USD
View
Price under review
25 more retailers have this diamond
Prices start from $1,157 NZDSave up to $4,495 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
4.09ct Round
$1,157 NZD