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Oval|Lab Grown|IGI

4.20ct D IF Oval Lab Grown Diamond

EX • D/IF • IGI LG768631044

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG768631044

Diamond specifications and retailer prices

From $4,024 NZD
$2,268 USD
As of October 29, 2026
Save $24,101 NZD (86%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $28,125 NZD at Novita Diamonds · As of November 1, 2026
View at Novita Diamonds

About this 4.2ct lab-grown oval diamond

This 4.2ct 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 LG768631044 or 768631044. Listed at 17 retailers as of October 29, 2026, with prices from $4,024 to $28,125, a $24,101 spread on the same certified stone. Novita Diamonds lists it at $28,125. 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

4.20
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768631044
Dimensions12.66 × 9.07 × 5.51 mm
L/W Ratio1.40
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
12.66 mm9.07 mm4.20 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768631044
Side View
Table 62.0%Crown 34.8°Girdle: ThickPavilion 39.2°Culet: NoneDepth 60.7%

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: Oct 29
Current: $28,125 NZD|Low: $3,992 NZD|High: $36,568 NZD|Avg: $11,334 NZD|+0.4%
Novita Diamonds
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
November 1, 2026
Retailer 15$4,024 NZD
Retailer 10$4,379 NZD
Retailer 12$4,775 NZD
Retailer 9$4,936 NZD
Retailer 16$4,959 NZD
Retailer 5$7,083 NZD
Retailer 11$7,156 NZD
Retailer 6$7,321 NZD
Retailer 14$7,562 NZD
Retailer 2$8,376 NZD
Retailer 8$11,231 NZD
Retailer 7$11,427 NZD
Retailer 4$12,784 NZD
Retailer 17$13,872 NZD
Retailer 13$20,121 NZD
Retailer 3$27,697 NZD
Novita Diamonds$28,125 NZD

36 data points across 17 retailers

17 retailers$4,024 NZD to $28,125 NZD

A
Cheapest Retailer
-
$4,024 NZD
$2,268 USD
A
Retailer 2
-
$4,379 NZD
$2,468 USD
View
A
Retailer 3
-
$4,775 NZD
$2,691 USD
View
A
Retailer 4
-
$4,936 NZD
$2,782 USD
View
Final sale: no returns
A
Retailer 5
-
$4,959 NZD
$2,795 USD
View
A
Retailer 6
-
$7,083 NZD
$3,992 USD
View
A
Retailer 7
-
$7,156 NZD
$4,033 USD
View
A
Retailer 8
-
$7,321 NZD
$4,126 USD
View
A
Retailer 9
-
$7,562 NZD
$4,262 USD
View
A
Retailer 10
-
$8,376 NZD
€4,496 EUR
View
Retailer 11
-
$11,231 NZD
$6,330 USD
View
Price last confirmed 10 days ago
Retailer 12
-
$11,427 NZD
A$9,908 AUD
View
Price last confirmed 9 days ago
B+
Retailer 13
-
$12,784 NZD
$7,205 USD
View
B+
Retailer 14
-
$13,872 NZD
£6,156 GBP
View
B+
Retailer 15
-
$20,121 NZD
$11,340 USD
View
B
Retailer 16
-
$27,697 NZD
$15,610 USD
View
Most Expensive
B
Novita Diamonds
cert_768631044 · Nov 1
$28,125 NZD
A$24,387 AUD
View
16 more retailers have this diamond
Prices start from $4,024 NZDSave up to $24,101 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
4.20ct Oval
$4,024 NZD