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Princess|Lab Grown|IGI

1.51ct G VS1 Princess Lab Grown Diamond

ID • G/VS1 • IGI LG629441721

Shape and cutting style on the report: Princess cut

Certificate IGI LG629441721

Diamond specifications and retailer prices

From $343 AUD
As of November 4, 2026
Save $1,386 AUD (80%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,371 AUD at Brilliant Earth · As of October 22, 2026
View at Brilliant Earth

About this 1.51ct lab-grown princess diamond

This 1.51ct lab-grown princess sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG629441721 or 629441721. Listed at 20 retailers as of November 4, 2026, with a 404% 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
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.7°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG629441721
Dimensions6.20 × 6.18 × 4.50 mm
L/W Ratio1.00
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
6.20 mm6.18 mm1.51 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG629441721
Side View
Table 70.0%Crown 43.7°Girdle: MED-STKPavilion 38.8°Culet: NoneDepth 72.8%

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 4
Current: $2,371 AUD|Low: $329 AUD|High: $2,371 AUD|Avg: $883 AUD
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
Retailer 17
Retailer 18
November 5, 2026
Retailer 18$343 AUD
Retailer 8$384 AUD
Retailer 9$397 AUD
Retailer 4$426 AUD
Retailer 7$426 AUD
Retailer 2$493 AUD
Retailer 17$571 AUD
Retailer 14$733 AUD
Retailer 15$767 AUD
Retailer 10$783 AUD
Retailer 11$797 AUD
Retailer 12$993 AUD
Retailer 16$1,090 AUD
Retailer 6$1,367 AUD
Retailer 3$1,429 AUD
Retailer 13$1,703 AUD
Retailer 5$1,728 AUD
Brilliant Earth$2,371 AUD

45 data points across 18 retailers

20 retailers$343 AUD to $1,728 AUD

A
Cheapest Retailer
-
$343 AUD
A
Retailer 2
-
$384 AUD
View
Final sale: no returns
A
Retailer 3
-
$397 AUD
View
A
Retailer 4
-
$426 AUD
View
Retailer 5
-
$426 AUD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$493 AUD
View
B+
Retailer 7
-
$571 AUD
View
A
Retailer 8
-
$697 AUD
View
A
Retailer 9
-
$733 AUD
View
Retailer 10
-
$767 AUD
View
Price last confirmed 7 days ago
B+
Retailer 11
-
$783 AUD
View
A
Retailer 12
-
$797 AUD
View
B+
Retailer 13
-
$993 AUD
View
B+
Retailer 14
-
$1,090 AUD
View
B
Retailer 15
-
$1,367 AUD
View
B
Retailer 16
-
$1,429 AUD
View
B
Retailer 17
-
$1,440 AUD
View
B
Retailer 18
-
$1,703 AUD
View
B
Retailer 19
-
$1,728 AUD
View
Most Expensive
Brilliant Earth
21312267A · Oct 22
$2,371 AUD
$1,660 USD
View
Price last confirmed 14 days ago
19 more retailers have this diamond
Prices start from $343 AUDSave up to $1,386 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 Princess
$343 AUD