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Oval|Lab Grown|IGI

4.21ct D IF Oval Lab Grown Diamond

EX • D/IF • IGI LG793643349

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG793643349

Diamond specifications and retailer prices

From $4,614 AUD
$3,241 USD
As of November 1, 2026
Save $18,003 AUD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $22,617 AUD at Novita Diamonds · As of November 1, 2026
View at Novita Diamonds

About this 4.21ct lab-grown oval diamond

This 4.21ct lab-grown oval 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 LG793643349 or 793643349. Listed at 11 retailers as of November 1, 2026, with prices from $4,614 to $22,617, a $18,003 spread on the same certified stone. Novita Diamonds lists it at $22,617. 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
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG793643349
Dimensions12.98 × 9.21 × 5.73 mm
L/W Ratio1.41
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
12.98 mm9.21 mm4.21 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG793643349
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
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: $22,617 AUD|Low: $4,567 AUD|High: $22,902 AUD|Avg: $10,403 AUD|+0.4%
Novita Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 7$4,614 AUD
Retailer 4$5,266 AUD
Retailer 2$6,078 AUD
Retailer 6$6,722 AUD
Retailer 3$7,199 AUD
Retailer 8$7,988 AUD
Retailer 5$12,164 AUD
Retailer 10$15,815 AUD
Retailer 9$16,669 AUD
Novita Diamonds$22,617 AUD

41 data points across 10 retailers

11 retailers$4,614 AUD to $22,617 AUD

A
Cheapest Retailer
-
$4,614 AUD
$3,241 USD
A
Retailer 2
-
$5,266 AUD
HK$28,900 HKD
View
A
Retailer 3
-
$6,078 AUD
£3,362 GBP
View
A
Retailer 4
-
$6,722 AUD
$4,722 USD
View
A
Retailer 5
-
$7,199 AUD
€4,816 EUR
View
A
Retailer 6
-
$7,988 AUD
$5,611 USD
View
Retailer 7
-
$9,984 AUD
$7,013 USD
View
Price last confirmed 96 days ago
B+
Retailer 8
-
$12,164 AUD
£6,728 GBP
View
B
Retailer 9
-
$15,815 AUD
$11,109 USD
View
B
Retailer 10
-
$16,669 AUD
$11,709 USD
View
Most Expensive
B
Novita Diamonds
cert_793643349 · Nov 1
$22,617 AUD
View
10 more retailers have this diamond
Prices start from $4,614 AUDSave up to $18,003 AUD

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
$4,614 AUD