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Round|Lab Grown|IGI

1.51ct E VVS2 Round Lab Grown Diamond

ID • E/VVS2 • IGI LG781631379

Shape and cutting style on the report: Round brilliant

Certificate IGI LG781631379

Diamond specifications and retailer prices

From $369 AUD
As of November 5, 2026
Save $1,601 AUD (81%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $2,600 AUD at Brilliant Earth · As of October 27, 2026
View at Brilliant Earth

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG781631379 or 781631379. Listed at 24 retailers as of November 4, 2026, with a 434% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG781631379
Dimensions7.38 × 7.44 × 4.54 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.38 mm7.44 mm1.51 ctE / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG781631379
Side View
Table 55.0%Crown 33.2°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $2,600 AUD|Low: $354 AUD|High: $2,728 AUD|Avg: $964 AUD|-4.7%
Brilliant Earth
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
November 6, 2026
Retailer 5$369 AUD
Retailer 4$429 AUD
Retailer 3$457 AUD
Retailer 6$457 AUD
Retailer 7$511 AUD
Retailer 12$686 AUD
Retailer 10$696 AUD
Retailer 15$744 AUD
Retailer 14$790 AUD
Retailer 2$857 AUD
Retailer 13$1,071 AUD
Retailer 9$1,187 AUD
Retailer 16$1,471 AUD
Retailer 8$1,800 AUD
Retailer 11$1,828 AUD
Brilliant Earth$2,600 AUD

35 data points across 16 retailers

24 retailers$369 AUD to $1,970 AUD

A
Cheapest Retailer
-
$369 AUD
A
Retailer 2
-
$411 AUD
View
Final sale: no returns
A
Retailer 3
-
$429 AUD
View
A
Retailer 4
-
$457 AUD
View
Retailer 5
-
$457 AUD
View
Price last confirmed 21 days ago
A
Retailer 6
-
$511 AUD
View
B+
Retailer 7
-
$617 AUD
View
A
Retailer 8
-
$686 AUD
View
A
Retailer 9
-
$696 AUD
View
A
Retailer 10
-
$714 AUD
View
Retailer 11
-
$744 AUD
View
Price last confirmed 8 days ago
A
Retailer 12
-
$790 AUD
View
B+
Retailer 13
-
$857 AUD
View
B+
Retailer 14
-
$940 AUD
View
B+
Retailer 15
-
$1,071 AUD
View
B+
Retailer 16
-
$1,187 AUD
View
B
Retailer 17
-
$1,417 AUD
View
B
Retailer 18
-
$1,471 AUD
View
B
Retailer 19
-
$1,503 AUD
View
B
Retailer 20
-
$1,544 AUD
View
B
Retailer 21
-
$1,800 AUD
View
B
Retailer 22
-
$1,828 AUD
View
B
Retailer 23
-
$1,970 AUD
View
Most Expensive
Brilliant Earth
20979994A · Oct 27
$2,600 AUD
$1,820 USD
View
Price last confirmed 9 days ago
23 more retailers have this diamond
Prices start from $369 AUDSave up to $1,601 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
1.51ct Round
$369 AUD