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Oval|Lab Grown|IGI

4.20ct D IF Oval Lab Grown Diamond

EX • D/IF • IGI LG772689664

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG772689664

Diamond specifications and retailer prices

From $17,646 USD
A$27,148 AUD
As of November 1, 2026
2 retailers carry this diamond
Most expensive: $17,646 USD at Novita Diamonds
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 LG772689664 or 772689664. Listed at 2 retailers as of November 1, 2026. 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
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG772689664
Dimensions12.79 × 9.13 × 5.58 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
12.79 mm9.13 mm4.20 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG772689664
Side View
Table 57.0%Crown 36.7°Girdle: MED-STKPavilion 38.7°Culet: NoneDepth 61.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 1
Current: $17,646 USD|Low: $2,363 USD|High: $21,250 USD|Avg: $7,681 USD|+9.9%
Novita Diamonds
Retailer 2
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November 1, 2026
Retailer 6$2,453 USD
Retailer 14$2,550 USD
Retailer 16$2,625 USD
Retailer 19$2,770 USD
Retailer 18$2,885 USD
Retailer 3$3,620 USD
Retailer 5$4,262 USD
Retailer 4$4,269 USD
Retailer 15$4,676 USD
Retailer 11$5,275 USD
Retailer 12$6,437 USD
Retailer 13$7,437 USD
Retailer 2$8,133 USD
Retailer 9$8,691 USD
Retailer 8$10,196 USD
Retailer 10$12,723 USD
Retailer 17$16,130 USD
Novita Diamonds$17,646 USD
Retailer 7$21,250 USD

11 data points across 19 retailers

2 retailers

Retailer 1
-
$4,125 USD
Price last confirmed 34 days ago
Most Expensive
B
Novita Diamonds
cert_772689664 · Nov 1
$17,646 USD
A$27,148 AUD
View
1 more retailer has this diamond

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
4.20ct Oval
$17,646 USD