Oval|Lab Grown|IGI

4.21ct F VS2 Oval Lab Grown Diamond

EX • F/VS2 • IGI LG826611304

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG826611304

Diamond specifications and retailer prices

From $1,703 NZD
$960 USD
As of November 1, 2026
Save $10,628 NZD (86%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $12,331 NZD at Brilliant Earth · As of November 1, 2026
View at Brilliant Earth

About this 4.21ct lab-grown oval diamond

This 4.21ct lab-grown oval sits in the three to five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG826611304 or 826611304. Listed at 10 retailers as of November 1, 2026, with prices from $1,703 to $12,331, a $10,628 spread on the same certified stone. Brilliant Earth lists it at $12,331. 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

4.21
Carat
F
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826611304
Dimensions13.05 × 9.17 × 5.72 mm
L/W Ratio1.42
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.05 mm9.17 mm4.21 ctF / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826611304
Side View
Table 56.0%Crown 35.8°Girdle: THN-MEDPavilion 40.4°Culet: NoneDepth 62.4%

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 1
Current: $12,331 NZD|Low: $1,703 NZD|High: $12,331 NZD|Avg: $3,344 NZD|+1.0%
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
November 1, 2026
Retailer 10$1,703 NZD
Retailer 12$1,733 NZD
Retailer 3$1,928 NZD
Retailer 2$2,098 NZD
Retailer 9$2,275 NZD
Retailer 8$2,278 NZD
Retailer 5$2,307 NZD
Retailer 4$2,938 NZD
Retailer 13$3,254 NZD
Retailer 6$3,988 NZD
Retailer 7$4,884 NZD
Retailer 14$5,784 NZD
Retailer 11$6,786 NZD
Brilliant Earth$12,331 NZD

16 data points across 14 retailers

10 retailers$1,703 NZD to $12,331 NZD

A
Cheapest Retailer
-
$1,703 NZD
$960 USD
B+
Retailer 2
-
$1,733 NZD
$977 USD
View
A
Retailer 3
-
$2,051 NZD
$1,156 USD
View
A
Retailer 4
-
$2,098 NZD
€1,126 EUR
View
A
Retailer 5
-
$2,275 NZD
$1,282 USD
View
B+
Retailer 6
-
$3,254 NZD
$1,834 USD
View
B
Retailer 7
-
$4,884 NZD
A$4,235 AUD
View
Retailer 8
-
$5,784 NZD
$3,260 USD
View
Price last confirmed 35 days ago
B
Retailer 9
-
$6,786 NZD
$3,825 USD
View
Most Expensive
B
Brilliant Earth
22296043A · Nov 1
$12,331 NZD
$6,950 USD
View
9 more retailers have this diamond
Prices start from $1,703 NZDSave up to $10,628 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
4.21ct Oval
$1,703 NZD