Oval|Lab Grown|IGI

4.21ct F VS2 Oval Lab Grown Diamond

EX • F/VS2 • IGI LG822618090

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG822618090

Diamond specifications and retailer prices

From $1,585 NZD
$892 USD
As of October 28, 2026
Save $5,210 NZD (77%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $6,795 NZD at Frank Darling · As of October 27, 2026
View at Frank Darling

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 LG822618090 or 822618090. Listed at 3 retailers as of October 27, 2026, with prices from $1,585 to $6,795, a $5,210 spread on the same certified stone. Frank Darling lists it at $6,795. 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 angle35.4°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG822618090
Dimensions13.09 × 9.01 × 5.58 mm
L/W Ratio1.45
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.09 mm9.01 mm4.21 ctF / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG822618090
Side View
Table 62.0%Crown 35.4°Girdle: MED-STKPavilion 40.5°CuletDepth 61.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 28
Current: $6,795 NZD|Low: $1,557 NZD|High: $6,796 NZD|Avg: $4,537 NZD|-0.0%
Frank Darling
Retailer 2
Retailer 3
October 27, 2026
Retailer 2$1,585 NZD
Retailer 3$5,554 NZD
Frank Darling$6,795 NZD

6 data points across 3 retailers

3 retailers$1,585 NZD to $6,795 NZD

B+
Cheapest Retailer
-
$1,585 NZD
$892 USD
Retailer 2
-
$5,554 NZD
$3,125 USD
View
Price last confirmed 15 days ago
Most Expensive
B
Frank Darling
100191411113KD · Oct 27
$6,795 NZD
$3,823 USD
View
2 more retailers have this diamond
Prices start from $1,585 NZDSave up to $5,210 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.

B+
4.21ct Oval
$1,585 NZD