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Oval|Lab Grown|IGI

3.51ct D VS2 Oval Lab Grown Diamond

EX • D/VS2 • IGI LG657420398

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG657420398

Diamond specifications and retailer prices

From $1,335 AUD
$938 USD
As of October 29, 2026
Save $2,998 AUD (69%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $4,333 AUD at Brilliance · As of October 29, 2026
View at Brilliance

About this 3.51ct lab-grown oval diamond

This 3.51ct lab-grown oval sits in the three to five carat band, graded D colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG657420398 or 657420398. Listed at 21 retailers as of October 29, 2026, with prices from $1,335 to $4,333, a $2,998 spread on the same certified stone. Brilliance lists it at $4,333. 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

3.51
Carat
D
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG657420398
Dimensions12.26 × 8.43 × 5.32 mm
L/W Ratio1.45
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.26 mm8.43 mm3.51 ctD / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG657420398
Side View
Table 59.0%Crown 35.9°Girdle: MED-THKPavilion 40.3°Culet: NoneDepth 63.1%

Caratlytics Score

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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: $4,333 AUD|Low: $954 AUD|High: $6,252 AUD|Avg: $2,824 AUD|-30.7%
Brilliance
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 3$954 AUD
Retailer 7$1,335 AUD
Retailer 11$1,535 AUD
Retailer 5$1,942 AUD
Retailer 12$2,053 AUD
Retailer 8$2,229 AUD
Retailer 6$2,299 AUD
Retailer 4$3,182 AUD
Retailer 10$3,414 AUD
Retailer 2$4,205 AUD
Retailer 9$4,231 AUD
Brilliance$4,333 AUD

19 data points across 12 retailers

21 retailers$1,335 AUD to $4,333 AUD

Retailer 1
-
$1,323 AUD
$929 USD
Price last confirmed 15 days ago
Retailer 2
-
$1,323 AUD
$929 USD
View
Price last confirmed 9 days ago
A
Retailer 3
-
$1,335 AUD
$938 USD
View
Final sale: no returns
A
Retailer 4
-
$1,439 AUD
$1,011 USD
View
A
Retailer 5
-
$1,439 AUD
$1,011 USD
View
Retailer 6
-
$1,535 AUD
$1,078 USD
View
Price last confirmed 20 days ago
Retailer 7
-
$1,535 AUD
$1,078 USD
View
Price last confirmed 19 days ago
Retailer 8
-
$1,535 AUD
$1,078 USD
View
Price last confirmed 18 days ago
Retailer 9
-
$1,535 AUD
$1,078 USD
View
Price last confirmed 18 days ago
A
Retailer 10
-
$1,942 AUD
£1,074 GBP
View
B+
Retailer 11
-
$2,053 AUD
$1,442 USD
View
B+
Retailer 12
-
$2,229 AUD
$1,566 USD
View
B+
Retailer 13
-
$2,299 AUD
$1,615 USD
View
B
Retailer 14
-
$3,414 AUD
$2,398 USD
View
B
Retailer 15
-
$3,894 AUD
$2,735 USD
View
B
Retailer 16
-
$4,205 AUD
$2,954 USD
View
B
Retailer 17
-
$4,231 AUD
£2,340 GBP
View
Retailer 18
-
$4,314 AUD
$3,030 USD
View
Price last confirmed 20 days ago
Retailer 19
-
$4,314 AUD
$3,030 USD
View
Price last confirmed 15 days ago
Retailer 20
-
$4,314 AUD
$3,030 USD
View
Price last confirmed 18 days ago
Most Expensive
B
Brilliance
D46514018 · Oct 29
$4,333 AUD
$3,044 USD
View
20 more retailers have this diamond
Prices start from $1,335 AUDSave up to $2,998 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
3.51ct Oval
$1,335 AUD