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Princess|Lab Grown|IGI

12.43ct J VS1 Princess Lab Grown Diamond

EX • J/VS1 • IGI LG841630867

Shape and cutting style on the report: Princess cut

Certificate IGI LG841630867

Diamond specifications and retailer prices

From $2,918 AUD
$2,050 USD
As of October 29, 2026
Save $7,901 AUD (73%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $10,819 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 12.43ct lab-grown princess diamond

This 12.43ct lab-grown princess sits in the over five carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG841630867 or 841630867. Listed at 3 retailers as of October 29, 2026, with prices from $2,918 to $10,819, a $7,901 spread on the same certified stone. Brilliant Earth lists it at $10,819. 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

12.43
Carat
J
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.3°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841630867
Dimensions12.79 × 12.68 × 8.69 mm
L/W Ratio1.01
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.79 mm12.68 mm12.43 ctJ / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841630867
Side View
Table 70.0%Crown 43.3°Girdle: MediumPavilion 37.9°Culet: NoneDepth 68.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: $10,819 AUD|Low: $2,918 AUD|High: $15,460 AUD|Avg: $8,413 AUD|-30.0%
Brilliant Earth
Retailer 2
Retailer 3
October 30, 2026
Retailer 3$2,918 AUD
Retailer 2$4,174 AUD
Brilliant Earth$10,819 AUD

23 data points across 3 retailers

3 retailers$2,918 AUD to $10,819 AUD

A
Cheapest Retailer
-
$2,918 AUD
$2,050 USD
Final sale: no returns
B+
Retailer 2
-
$4,174 AUD
£2,309 GBP
View
Most Expensive
B
Brilliant Earth
21706122A · Oct 30
$10,819 AUD
$7,600 USD
View
2 more retailers have this diamond
Prices start from $2,918 AUDSave up to $7,901 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
12.43ct Princess
$2,918 AUD